WO2015189879A1 - Stabilized power source device and power distribution system using same - Google Patents
Stabilized power source device and power distribution system using same Download PDFInfo
- Publication number
- WO2015189879A1 WO2015189879A1 PCT/JP2014/004737 JP2014004737W WO2015189879A1 WO 2015189879 A1 WO2015189879 A1 WO 2015189879A1 JP 2014004737 W JP2014004737 W JP 2014004737W WO 2015189879 A1 WO2015189879 A1 WO 2015189879A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power supply
- power
- output
- stabilized
- unit
- Prior art date
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
Definitions
- the present invention generally relates to a stabilized power supply device and a power distribution system using the same, and more specifically, a stabilized power supply that adjusts the magnitude of an input voltage so as to be within a predetermined output range and outputs an adjusted voltage.
- the present invention relates to a device and a power distribution system using the same.
- a stabilized power supply device that stabilizes the input power to the device is used in an environment where the power fluctuation is large. By supplying the system power to the device via the stabilized power supply device, the device can be protected.
- the present invention has been made in view of the above reasons, and an object of the present invention is to provide a stabilized power supply device that can easily be installed and easily secured in installation space and wiring and a power distribution system using the same. .
- the stabilized power supply device of the present invention includes an adjusting unit that is provided corresponding to a plurality of branch breakers and adjusts the magnitude of the input voltage input to the input terminal so as to be within a predetermined output range.
- a plurality of power supply units that output the voltage adjusted in step 1 as an output voltage from an output terminal, and a panel body having a mounting space for mounting the plurality of power supply units.
- the power distribution system of the present invention is electrically connected to at least one of a distribution board capable of branching and supplying power supplied from the power system, a stabilized power supply, and the distribution board and the stabilized power supply.
- the distributed power supply is connected to the power supply path between the power supply unit and the load circuit so as to include at least one power supply unit among the plurality of power supply units.
- FIG. 1 is a configuration diagram of a stabilized power supply device of Embodiment 1.
- FIG. FIG. 3 is a configuration diagram of a power supply unit according to the first embodiment.
- FIG. 3 is a circuit diagram of the power supply unit according to the first embodiment. 3 is an explanatory diagram of a connection mode of Embodiment 1.
- FIG. 1 is a block diagram of a power distribution system according to a first embodiment.
- FIG. 3 is a configuration diagram of a power supply unit having the changeover switch of the first embodiment.
- 1 is a configuration diagram of a stabilized power supply device of Embodiment 1.
- FIG. 1 is a configuration diagram of a stabilized power supply device of Embodiment 1.
- FIG. 6 is an explanatory diagram of a connection mode of Embodiment 2.
- FIG. It is explanatory drawing of the connection aspect of Embodiment 3.
- FIG. It is a block diagram of the power distribution system of Embodiment 4.
- FIG. 10 is an explanatory diagram of a connection mode of a fifth embodiment.
- the structure of the stabilized power supply device 1 according to this embodiment is shown in FIG.
- the stabilized power supply device 1 includes a plurality of power supply units 2 and a panel body 3.
- the plurality of power supply units 2 are provided corresponding to the plurality of branch breakers 63 (see FIG. 4).
- the plurality of power supply units 2 have an adjustment unit 23 (see FIG. 2) that adjusts the magnitude of the input voltage input to the input terminal 21 to be within a predetermined output range.
- the output voltage is output from the output terminal 22.
- the panel body 3 has a mounting space 31 for mounting the plurality of power supply units 2.
- the stabilized power supply device 1 further includes an input terminal block 4 and an output terminal block 5.
- the input terminal block 4 has a plurality of first terminals 41.
- the output terminal block 5 has a plurality of second terminals 51.
- the plurality of first terminals 41 correspond one-to-one to the plurality of power supply units 2, and each is electrically connected to the input terminal 21 of the corresponding power supply unit 2.
- the plurality of second terminals 51 correspond one-to-one to the plurality of power supply units 2, and each is electrically connected to the output terminal 22 of the corresponding power supply unit 2.
- each of the plurality of power supply units 2 preferably has a blocking unit 24 (see FIG. 2) for stopping output of the output voltage.
- the cutoff unit 24 stops outputting the output voltage.
- each of the plurality of power supply units 2 preferably has a return unit 25 (see FIG. 2) that restarts output of the output voltage when a predetermined return time has elapsed after the output of the output voltage is stopped.
- the return unit 25 resumes output of the output voltage when a predetermined return time elapses after the output of the output voltage by the interrupting unit 24 is stopped.
- each of the plurality of power supply units 2 includes an input terminal 21, an output terminal 22, and a circuit block 20.
- the circuit block 20 includes an adjustment unit 23, a blocking unit 24, and a return unit 25.
- the configuration of the stabilized power supply device 1 in the present embodiment will be described in more detail.
- the configuration described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and various modifications can be made according to design and the like.
- the arrangement and direction of each component will be described on the assumption that the stabilized power supply device 1 is installed on a wall.
- the present embodiment is not intended to limit the arrangement and direction of the stabilized power supply device 1.
- the board body 3 of the stabilized power supply device 1 is made of, for example, a synthetic resin and is formed in a box shape with an open front surface.
- the panel body 3 is provided with a door (not shown) that can be opened and closed. This door is provided as a cover so as not to expose the equipment inside the panel body 3, and when performing maintenance such as inspection of the equipment inside the panel body 3, the door is opened to the inside of the panel body 3. Access is possible.
- the back plate of the panel body 3 has attachment holes formed at each of the four corners, for example, and can be attached to the wall with screws or the like.
- a horizontally long input terminal block 4 is attached inside the board body 3 along the upper end of the back plate.
- a horizontally long output terminal block 5 is attached along the lower end.
- a horizontally long mounting space 31 is provided between the input terminal block 4 and the output terminal block 5 in parallel therewith.
- one DIN (Deutsche Industry Normen) rail is provided along the longitudinal direction.
- a plurality of power supply units 2 are attached to the DIN rail side by side in the longitudinal direction.
- the input terminal block 4 and the output terminal block 5 are made of, for example, a synthetic resin and are formed in a horizontally long rectangular parallelepiped shape.
- the input terminal block 4 has a plurality of first terminals 41 arranged along the longitudinal direction of the input terminal block 4.
- the output terminal block 5 has a plurality of second terminals 51 arranged along the longitudinal direction of the output terminal block 5.
- the first base 42 and the second base 52 are provided with attachment holes at each of the four corners. Thereby, the input terminal block 4 and the output terminal block 5 can be attached to the panel main body 3 with screws or the like, for example.
- Each of the plurality of power supply units 2 has a case 26 made of, for example, a synthetic resin and formed in a rectangular parallelepiped shape.
- the case 26 is provided with an attachment portion (not shown), a circuit block 20, an input terminal 21, and an output terminal 22.
- the attachment portion is provided on one surface of the case 26, and the attachment portion can be attached to the DIN rail.
- the circuit block 20 is housed inside the case 26 and has a third terminal 231 and a fourth terminal 232.
- the input terminal 21 is provided on the upper plate of the case 26.
- the output terminal 22 is provided on the lower plate of the case 26.
- the third terminal 231 is electrically connected to the input terminal 21.
- the fourth terminal 232 is electrically connected to the output terminal 22.
- the adjustment unit 23, the blocking unit 24, and the return unit 25 constitute a part of the circuit block 20.
- each power supply unit 2 will be described in detail with reference to FIG.
- the internal configuration of one power supply unit 2 of the plurality of power supply units 2 will be described, but the plurality of power supply units 2 adopt the same configuration.
- the adjustment unit 23 includes a transformer 233, a detection unit 234, and a control unit 235.
- Each of the primary side of the transformer 233 and the detection unit 234 is electrically connected to the third terminal 231. Therefore, the input voltage input to the power supply unit 2 is input to the primary side of the transformer 233 and the detection unit 234 via the third terminal 231.
- the detector 234 rectifies the input voltage and divides the voltage level.
- the voltage dividing resistors R1 and R2 are connected in parallel between the plus side and the minus side of the diode bridge DB.
- the detection unit 234 is electrically connected to the control unit 235.
- a control unit 235 is electrically connected to a connection point between the voltage dividing resistors R1 and R2.
- the turn ratio N2 / N1 of the transformer 233 is, for example, 5/4.
- the secondary side of the transformer 233 has a plurality of taps 291 to 294.
- the plurality of taps 291 to 294 are, for example, a first tap 291, a second tap 292, a third tap 293, and a fourth tap 294.
- the first tap 291 is directly connected to one end of the fourth terminal 232 and generates a reference potential.
- the second tap 292 is, for example, a tap having a winding ratio N2 / N1 of 4/5. In this case, a voltage having a magnitude of 4/5 of the voltage input to the primary side of the transformer 233 is generated between the first tap 291 and the second tap 292.
- the third tap 293 is, for example, a tap having a winding ratio N2 / N1 of 1. In this case, a voltage having the same magnitude as the voltage input to the primary side of the transformer 233 is generated between the first tap 291 and the third tap 293.
- the fourth tap 294 is a tap having a winding ratio N2 / N1 of 5/4.
- a voltage that is 5/4 of the voltage input to the primary side of the transformer 233 is generated between the first tap 291 and the fourth tap 294.
- the switch element 238 is electrically connected between each of the second, third, and fourth taps 292, 293, and 294 and the fourth terminal 232.
- the control unit 235 controls each of the switch elements 238 according to the magnitude of the voltage detected by the detection unit 234.
- the control unit 235 is configured using a microcomputer.
- the switch element 238 is, for example, a relay contact.
- shut-off unit 24 and the return unit 25 are realized by executing, for example, a microcomputer program.
- the blocking unit 24 and the return unit 25 may be provided separately from the adjusting unit 23.
- the stabilized power supply apparatus 1 of this embodiment is installed under the distribution board 6 installed in the indoor wall.
- the distribution board 6 is, for example, a general residential distribution unit in which various internal devices such as a main breaker 62 and a plurality of branch breakers 63 connected to a power system (system power supply) 100 are attached to a cabinet 61. It is a board.
- the plurality of power supply units 2 of the stabilized power supply device 1 are connected to the plurality of branch breakers 63 in a one-to-one correspondence via the first terminals 41.
- Each of the plurality of power supply units 2 is electrically connected to an individual load circuit 7 via the second terminal 51. That is, each of the plurality of power supply units 2 is electrically connected between any one of the plurality of branch breakers 63 and the load circuit 7.
- the load circuit 7 includes devices such as an air conditioner and a lighting fixture, an outlet, a switch, an indoor wiring, and the like.
- each of the plurality of power supply units 2 in the present embodiment stabilizes the input voltage so as to be within the range of the reference voltage (for example, 200 to 270 V) by the adjusting unit 23, and outputs it as an output voltage.
- the input voltage deviates from an allowable range (for example, 180 to 290V), that is, when the input voltage is smaller than 180V or larger than 290V, the output of the output voltage is stopped by the cutoff unit 24.
- a predetermined return time for example, 3 minutes
- the transformer 233 steps down or boosts the input voltage input to the primary side.
- the detection unit 234 divides the magnitude of the input voltage rectified by the diode bridge DB to about 1/100 by the voltage dividing resistors R1 and R2.
- the voltage after the voltage dividing resistors R1 and R2 have divided the voltage is input to an input pin of a microcomputer that is the control unit 235.
- the control unit 235 specifies the maximum value of the voltage input from the input pin and determines whether or not the maximum value (hereinafter referred to as the target voltage) is within an allowable range.
- the control unit 235 outputs a signal for turning off all the switch elements 238 to the switch element 238.
- the input voltage input to the third terminal 231 is not output as the output voltage, and the output of the output voltage from the fourth terminal 232 stops.
- the control unit 235 determines whether or not the target voltage is within the reference voltage range. As a result, when the target voltage is within the range of the reference voltage, the control unit 235 outputs a signal for turning on only the switch element 238 corresponding to the third tap 293 among the switch elements 238 to the switch element 238. Thus, the input voltage input to the third terminal 231 is output from the fourth terminal 232 as an output voltage without changing the magnitude of the voltage.
- the control unit 235 switches a signal that turns on only the switch element corresponding to the fourth tap 294 among the switch elements 238. Output to element 238.
- the input voltage input to the third terminal 231 is boosted by a factor of 5/4 and output from the fourth terminal 232 as an output voltage.
- the control unit 235 turns on only the switch element corresponding to the second tap 292 among the switch elements 238. Is output to the switch element 238.
- the input voltage input to the third terminal 231 is stepped down by a factor of 4/5 and is output from the fourth terminal 232 as an output voltage.
- control unit 235 monitors until the target voltage falls within the allowable range again. If the target voltage falls within the allowable range and then continues for 3 minutes within the allowable range, the output of the output voltage is resumed.
- the adjusting unit 23 stabilizes the input voltage input to the plurality of power supply units 2 so as to be within the reference voltage range if the input voltage is within the allowable range.
- blocking part 24 stops the output of an output voltage, and protects the load circuit 7, when the input voltage has deviated from the tolerance
- the output unit 25 resumes outputting the output voltage when a predetermined return time has elapsed.
- a stabilized power supply installed for each device (hereinafter referred to as a main power supply for the main trunk) is normally one stabilized power supply. Even if it does not function, there is an advantage that it does not affect other stabilized power supply devices and connected devices. On the other hand, since there are as many stabilized power supply devices as the number of devices, there is a drawback in that it is difficult to secure installation space and route wiring.
- a stabilized power supply device (hereinafter referred to as a residential stable power supply device) installed between the main breaker of the indoor distribution board and the system power supply is conceivable. Only one stabilized power supply unit is connected to all indoor devices. Only one stabilized power supply device needs to be installed indoors, and there is an advantage that installation is easier than a stabilized power supply device installed for each device. On the other hand, if one stabilized power supply device fails, there is a drawback that it affects all the indoor devices. Further, when the number of devices increases and the current capacity of the stabilized power supply device is changed, it is necessary to replace the entire stabilized power supply device. Further, there is a problem that the size and weight of the stabilized power supply itself are relatively large.
- the stabilized power supply device 1 of the present embodiment is provided with a plurality of power supply units 2 that stabilize the output voltage in each of the plurality of branch breakers 63. Thereby, even when one power supply unit does not function normally, the load circuit 7 connected to another power supply unit is not affected. Further, the stabilized power supply 1 of the present embodiment includes the plurality of power supply units 2 in the panel body 3. Thereby, since only one stabilization power supply device 1 should just be installed indoors, it can install easily. Therefore, in the stabilized power supply 1 of the present embodiment, the disadvantages of the above-described main stabilized power supply apparatus and residential stabilized power supply apparatus have been eliminated, and without considering installation space and wiring arrangement, Easy to install. That is, according to the stabilized power supply device 1, there is an advantage that the installation space can be secured and the wiring can be easily and easily installed.
- the power distribution system includes a stabilized power supply device 1, a distribution board 6, a distributed power supply 8, and a load circuit 7.
- the distributed power supply 8 includes a power conditioner (hereinafter abbreviated as “power conditioner”) 81 and a PV (Photovoltaic) panel 82.
- power conditioner hereinafter abbreviated as “power conditioner”
- PV Photovoltaic
- the distributed power supply 8 in this embodiment will be described with reference to FIG. However, the detailed structures of the power conditioner 81 and the PV panel 82 are not shown and described.
- the power conditioner 81 includes an inverter (not shown) and converts DC power to AC power.
- the PV panel 82 has a plurality of solar cells (not shown) and the like, and is installed on a roof, for example, and generates power by sunlight.
- One end of an output cable (not shown) that outputs the generated DC power is connected to the PV panel 82.
- the other end of the cable is connected to the power conditioner 81.
- the power conditioner 81 is interconnected with the power system 100, the power generated by the PV panel 82 can be supplied to the load circuit 7 to which the power of the power system 100 is supplied.
- the insufficient power can be supplemented by the power of the power system 100.
- the power generated by the distributed power supply 8 When the power generated by the distributed power supply 8 is sufficient, the power obtained by subtracting the power used for the load circuit 7 from the power generated by the distributed power supply 8 is supplied to the power system (power system 100). It is also possible to reverse flow.
- a period in which the voltage input from the power system 100 to the power distribution system is within the allowable range is referred to as a supply period, and a period in which the voltage input from the power system 100 is outside the allowable range is referred to as a cutoff period.
- a blackout period the period during which the power system 100 is blacked out and the power is cut off is called a blackout period.
- the distribution path 101 connects the secondary side of the plurality of branch breakers 63 and the plurality of first terminals 41 of the stabilized power supply device 1.
- the power distribution path 102 connects the output unit 811 of the power conditioner 81 and the main breaker 62 of the distribution board 6.
- the power distribution path 103 is a power distribution path used when the power conditioner 81 performs a self-sustained operation described later, and connects the output unit 812 of the power conditioner 81 and each of the second terminals 51 of the stabilized power supply device 1.
- the self-supporting operation of the power conditioner 81 will be described.
- the power conditioner 81 constantly monitors the voltage of the power system 100. Further, the power conditioner 81 includes an output unit 811 for grid connection and an output unit 812 for independent operation.
- the power conditioner 81 performs a self-sustained operation during the interruption period and the power outage period.
- the power conditioner 81 switches the output destination of electric power from the output part 811 for grid connection to the output part 812 for independent operation.
- An output unit 811 for grid connection is connected to the distribution path 102, and an output unit 812 for independent operation is connected to the distribution path 103.
- the power conditioner 81 can switch the distribution path between the supply period, the cutoff period, and the power failure period by switching the two output units 811 and 812.
- the electric power generated by the distributed power supply 8 is input to the primary side of the main breaker 62 (see FIG. 4) of the distribution board 6 via the distribution path 102. Both the power from the power system 100 and the power generated by the distributed power supply 8 are supplied to the load circuit 7 via the power distribution path 101 and the stabilized power supply device 1.
- the electric power from the electric power system 100 is interrupted by the interruption unit 24 (see FIG. 2) of the power supply unit 2.
- the electric power generated by the distributed power supply 8 is input to the second terminal 51 (see FIG. 1) of the stabilized power supply device 1 through the distribution path 103. That is, the electric power generated by the distributed power supply 8 does not go through the circuit block 20 of the power supply unit 2 and is supplied to the load circuit 7 without being cut off by the cut-off unit 24. Therefore, even if the power from the power system 100 is cut off by the cut-off unit 24, the load circuit 7 can be used continuously.
- the power generated by the distributed power supply 8 is input to the second terminal 51 of the stabilized power supply 1 via the distribution path 103 and supplied to the load circuit 7. Therefore, even when the power system 100 is in a supply stop state due to a power failure or the like, the load circuit 7 can be continuously used.
- the self-supporting operation of the power conditioner 81 it is possible to switch the power distribution path to supply power to the load circuit 7 and continue to use the load circuit 7 in both the interruption period and the power failure period.
- the stabilized power supply device 1 may not be used as a part of a power distribution system using the distributed power supply 8.
- the plurality of power supply units 2 may not be installed between the plurality of branch breakers 63 and the load circuit 7.
- the plurality of power supply units 2 only need to be installed in a one-to-one correspondence with the plurality of branch breakers 63.
- the plurality of power supply units 2 may be installed between the main breaker 62 and the plurality of branch breakers 63.
- the panel body 3, the input terminal block 4, the output terminal block 5, and the case 26 of the plurality of power supply units 2 are made of synthetic resin, but these may not be made of synthetic resin, For example, it may be made of metal.
- the board body 3 may not have a door.
- the mounting space 31 may not be provided with a DIN rail as in the present embodiment, and may be provided with an installation panel capable of fixing the plurality of power supply units 2 with screws or the like. In that case, the plurality of power supply units 2 need to have a mounting structure corresponding thereto.
- the transformer 233 included in the circuit block 20 of the power supply unit 2 may not be an insulating transformer in which the primary side and the secondary side are electrically insulated as in the present embodiment.
- the transformer 233 may be a single-winding transformer in which the primary winding and the secondary winding share a part, and the primary side and the secondary side are not electrically insulated. In the single-winding transformer, since the impedance of the shunt winding, which is a shared portion of the primary winding and the secondary winding, is small, the voltage fluctuation is small.
- the transformer 233 in the shunt winding, only the current corresponding to the turn ratio N2 / N1 between the primary winding and the secondary winding flows, so that the wire diameter of the winding can be made smaller than that of the insulating transformer. Therefore, by using the transformer 233 as a single-winding transformer, there is a possibility that it can be reduced in size and weight as compared with the case where the transformer 233 is an insulating transformer.
- each of the plurality of power supply units 2 may have a changeover switch 27 for switching between three connection states as shown in FIG.
- the adjustment unit 23 In the first connection state among the three connection states, the adjustment unit 23 is electrically connected between the input terminal 21 and the output terminal 22.
- the input terminal 21 In the second connection state, the input terminal 21 is directly connected to the output terminal 22.
- the input terminal 21 In the third connection state, the input terminal 21 is electrically disconnected from the output terminal 22.
- the user can select use / non-use for each of the plurality of power supply units 2.
- the power supply to the load circuit 7 can be cut off without handling the breaker inside the distribution board.
- this changeover switch 27 should just be the structure which switches at least two connection states among three connection states.
- the changeover switch 27 is preferably connected between the input terminal 21 and the third terminal 231 or connected between the fourth terminal 232 and the output terminal 22. With the changeover switch 27, the user can appropriately select whether or not to use each of the plurality of power supply units 2.
- each power supply unit 2 has only one pair of output terminals 22, but each of the plurality of power supply units 2 preferably has a plurality of output terminals 22.
- each power supply unit 2 has only one set of output terminals 22, two power supply units 2 are required.
- two load circuits 73 can be connected to one power supply unit. Therefore, when each power supply unit 2 has a plurality of output terminals 22, the number of load circuits 7 that can be used is increased compared to a case where each power supply unit 2 has only one set of output terminals 22, The degree of freedom of the user is increased.
- each of the plurality of power supply units 2 desirably has a setting unit 28 that can set a return time.
- each of the plurality of power supply units 2 has an operation unit 281.
- the operation unit 281 has a knob or button for setting a return time, and the user sets the return time using the operation unit 281.
- the return time set in the control unit 235 is overwritten by the return time set by the user, and the return time is changed. Thereby, the user himself / herself can set an appropriate return time according to the connected load circuit 7.
- the stabilized power supply 1 preferably has a short-circuit portion 91 as shown in FIG.
- the short-circuit part 91 electrically short-circuits between the 1st terminal 41 (refer FIG. 1) and the input terminal 21 (refer FIG. 1) of the power supply unit 2, when a heavy current flows into the stabilized power supply device 1.
- the short-circuit portion 91 is configured using, for example, a surge absorbing element such as a varistor and a circuit component such as a fuse.
- One end of a surge absorbing element (not shown) is connected to the ground. Further, the end of the surge absorbing element opposite to the end connected to the ground is electrically connected between the first terminal 41 and the input terminal 21. Therefore, since a large current flows to the ground through the surge absorbing element before reaching the circuit block 20, the short circuit portion 91 can protect the circuit block 20 and the load circuit 7.
- the fuse (not shown) is electrically connected on the path of the current flowing through the surge absorbing element.
- UPS Uninterruptable Power Supply
- the UPS 92 omits the illustration and description of the detailed structure.
- the UPS 92 is installed between the first terminal 41 (see FIG. 2) of the stabilized power supply device 1 and the input terminal 21 (see FIG. 1) of the power supply unit 2.
- the UPS 92 is connected to a storage battery 93 as shown in FIG.
- the UPS 92 converts DC power from the storage battery 93 to AC power and supplies the stabilized power supply 1 with power. Therefore, the load circuit 7 can be continuously used even when a long-time power failure occurs.
- the stabilized power supply device 1 preferably includes a power detection unit 94 that detects power for power consumption display and overcurrent protection.
- the power detection unit 94 is installed between the first terminal 41 of the stabilized power supply device 1 and the input terminal 21 of the power supply unit 2.
- the power detection unit 94 includes a control unit (not shown), a communication unit (not shown), and the like.
- a control part is comprised using circuit components, such as a microcomputer (microcomputer) and a resistor, for example.
- the communication unit is configured using connectors necessary for wired communication and circuit components such as a wireless LAN (Local Area Network) antenna necessary for wireless communication.
- a wireless LAN Local Area Network
- the power detection unit 94 monitors the voltage and current input to the stabilized power supply 1 and detects the power input to the stabilized power supply 1 by the control unit from these values.
- the power detection unit 94 can notify the user by transmitting a detection result (power value) to a display device using, for example, a liquid crystal display by the transmission unit. Further, when the power detection unit 94 detects a large current that may cause the circuit block 20 (see FIG. 1) or the load circuit 7 to malfunction, the power detection unit 94 transmits a signal to the load circuit 7 by the communication unit. It is possible to cut off the power to the circuit 7.
- the load circuit 7 may not be included as a configuration requirement of the power distribution system.
- a plurality of load circuits 7 may be electrically connected to one power supply unit 2.
- the distributed power supply 8 showed the example provided with the power conditioner 81 and the PV panel 82, not only this but the distributed power supply 8 may be provided with a storage battery, a fuel cell, etc.
- the supply voltage from the power system 100 is out of the specified range, that is, in the interruption period and the power failure period, power is not supplied to the plurality of load circuits 7 until reconnection is performed.
- the load circuit 7 could not be used.
- a plurality of load circuits 7 can be continuously used even during the interruption period and the power failure period.
- the power distribution system of the present embodiment includes a distribution board 6 that can branch and supply power supplied from the power system 100 and the stabilized power supply device 1. Furthermore, the power distribution system of this embodiment includes a distributed power supply 8 that is electrically connected to at least one of the distribution board 6 and the stabilized power supply device 1. The distributed power supply 8 is connected to the power supply path to the load circuit 7 so as to include at least one power supply unit 2 among the plurality of power supply units 2.
- the power distribution system according to the present embodiment includes at least one of the plurality of power supply units 2 in the power supply path between the distributed power supply 8 and the load circuit 7. By doing so, it is possible to provide a power distribution system that can supply power to the load circuit 7 even when power from the power system 100 is cut off. Moreover, in the power distribution system of the present embodiment, since both the power from the power system 100 and the power generated by the distributed power supply 8 pass through the power supply unit 2 in the supply period, stable power is supplied to the load circuit 7. It is possible.
- a wiring (distribution path 103) for supplying power generated by the independent operation of the distributed power supply 8 to the stabilized power supply device 1 is provided.
- the plurality of branch breakers 63 and the plurality of power supply units 2 correspond one-to-one, and the corresponding branch breakers 63 and the power supply units 2 are connected between the power system 100 and the load circuit 7. It is preferable that they are electrically connected in series.
- one of the plurality of branch breakers 63 and each of at least two of the plurality of power supply units 2 are electrically connected in series between the power system 100 and the load circuit 7. It is preferable that they are connected.
- the stabilized power supply device 1 preferably has a short-circuit portion 91 that flows current to the ground so that current that exceeds the allowable current range of the load circuit 7 does not flow to the load circuit 7.
- the power distribution system of the present embodiment can protect the connected load circuit 7 from a large current such as a lightning strike.
- the stabilized power supply device 1 preferably has a UPS 92 that supplies power to the load circuit 7 at the time of a power failure of the power system 100.
- the UPS 92 is preferably connected to the storage battery 93.
- the load circuit 7 can be continuously used during a long-time power failure and low voltage.
- the stabilized power supply 1 preferably has a power detection unit 94 that detects the power input to the stabilized power supply 1.
- the stabilized power supply 1 of the present embodiment is provided with a plurality of power supply units selected from two or more types of power supply units in which the panel body 3 is different from one another in current capacity, output range, and recovery time.
- the second embodiment is different from the first embodiment in that it can be attached to the space 31.
- the structure of the stabilized power supply device 1 according to the present embodiment is common to the structure of the stabilized power supply device described in the first embodiment except for the above.
- the current capacity of the components is preferably greater than or equal to the current capacity of the branch breaker 63 to which the power supply unit is connected.
- the current capacity of the branch breaker is 10 A
- the current capacity of the power supply unit connected to the branch breaker 63 is preferably 10 A or more.
- the current capacity of the component of the power supply unit having the smallest current capacity is defined as the current capacity of the power supply unit.
- load circuits 71, 72, 73 and 74 are used as the load circuit 7.
- the rated currents of the load circuits 71, 72, 73, 74 are 1A, 3A, 5A, 10A in order.
- branch breakers 631, 632, 633, 634, 635, and 636 having different current capacities are attached to the distribution board 6 as the plurality of branch breakers 63.
- the current capacities of the branch breakers 631 and 632 are 10A and 15A in order.
- power supply units 201 and 202 having different current capacities are lined up.
- the current capacities of the power supply units 201 and 202 are 15A and 20A in this order.
- Each of the power supply units 201 and 202 has the same configuration except for the current capacity, and can be mounted in the mounting space 31.
- the power supply unit 201 is attached to the branch breaker 631.
- the power supply unit 202 is attached to the branch breaker 632. Further, since a current of 10 A can be taken out from the power supply unit 201, load circuits 71, 72, and 73 are connected to the power supply unit 201. Since a current of 15 A can be extracted from the power supply unit 202, a load circuit 74 is connected to the power supply unit 202.
- the panel body 3 is configured so that a plurality of power supply units selected from two or more types of power supply units 201 and 202 having different current capacities can be mounted in the mounting space 31. If the current capacity of each of the plurality of power supply units 2 can be selected by the user, the power supply unit corresponding to each current capacity of the plurality of branch breakers 63 can be selected by the load circuit 7 to be used.
- each of the plurality of power supply units 2 has a plurality of taps 291 to 294 on the secondary side of the transformer 233, and the output range can be set more finely as the number of taps increases.
- load circuits 75 and 76 are further used as the load circuit 7.
- the load circuit 75 can be used at 200 to 240V
- the load circuit 76 can be used at 200 to 220V.
- power supply units 203 and 204 having different output ranges are lined up.
- the output ranges of the power supply units 203 and 204 are 200 to 240 V and 200 to 220 V in this order.
- each of these power supply units 203 and 204 has the same configuration except for the output range, and both can be mounted in the mounting space 31.
- the power supply unit 203 is attached to the branch breaker 633.
- a power supply unit 204 is attached to the branch breaker 634.
- the load circuit 75 is connected to the power supply unit 203.
- the output range of the power supply unit 204 is 200 to 220 V, a load circuit 76 is connected to the power supply unit 204.
- the panel body 3 is configured so that a plurality of power supply units selected from two or more types of power supply units 203 and 204 having different output ranges can be mounted in the mounting space 31.
- the user can select and install a power supply unit having an appropriate output range according to the specifications of the load circuit 7.
- the time until the output is restarted after the output voltage of the power supply unit is stopped changes. That is, after the power supply to the load circuit 7 connected to the load circuit 7 is cut off and the power supply of the load circuit 7 is turned off, the timing at which the power supply of the load circuit 7 is turned on again changes. For example, even if the power supply of the load circuit 7 having a motor is turned off due to a power failure or the like, the load circuit 7 can be operated normally by using a power supply unit that is turned on after the motor is completely stopped. .
- load circuits 77 and 78 are further used as the load circuit 7.
- the load circuit 77 can be normally restarted with a return time of 1 minute after stopping.
- the load circuit 78 can be restarted normally after a recovery time of 3 minutes after stopping.
- power supply units 205 and 206 having different return times are lined up.
- the return times of the power supply units 205 and 206 are 1 minute and 3 minutes in order.
- Each of these power supply units 205 and 206 has the same configuration except for the return time, and both can be mounted in the mounting space 31.
- the power supply unit 205 is attached to the branch breaker 635.
- a power supply unit 206 is attached to the branch breaker 636. Further, since the power supply unit 205 has a return time of 1 minute, a load circuit 77 is connected to the power supply unit 205. Since the output range of the power supply unit 206 is 3 minutes, the load circuit 78 is connected to the power supply unit 206.
- the panel body 3 is configured so that a plurality of power supply units 2 selected from two or more types of power supply units 205 and 206 having different return times can be mounted in the mounting space 31. Thereby, the user can select and install a power supply unit having an appropriate recovery time according to the specifications of the load circuit 7.
- the load circuits 77 and 78 can be normally operated after a sufficient recovery time. .
- the stabilized power supply device 1 of the present embodiment is different from the first embodiment in that the panel body 3 is also used as the cabinet 61 of the distribution board 6.
- the structure of the stabilized power supply device 1 which concerns on this embodiment is common in the structure of the stabilized power supply device described in Embodiment 1 except the above.
- the connection mode of this embodiment is shown in FIG.
- the plurality of power supply units 2 of the present embodiment are installed in a residential distribution board 6 installed on an indoor wall.
- the distribution board 6 includes a cabinet 61, a main breaker 62 connected to the power system 100, and a plurality of branch breakers 63.
- the cabinet 61 has not only a space for mounting various internal devices such as a main breaker 62 and a plurality of branch breakers 63 inside, but also a distribution space 64.
- the distribution space 64 is a space for mounting the plurality of power supply units 2, the input terminal block 4, and the output terminal block 5, and corresponds to the mounting space 31 in the first embodiment.
- a plurality of branch breakers 63 are attached in a horizontal row, and a distribution space 64 is provided below the space where the branch breakers 63 are attached.
- the distribution space 64 is provided with an input terminal block 4, a DIN rail, and an output terminal block 5 in order from the top.
- the horizontal width of the distribution space 64 is the width of the space for mounting the plurality of branch breakers 63. It is almost the same.
- the plurality of power supply units 2 have the same configuration as that of the first embodiment, and can be attached to the DIN rail by the attaching portion of the case 26. Therefore, the plurality of power supply units 2 are attached to the plurality of branch breakers 63 in one-to-one correspondence on the DIN rail.
- the first terminal 41 of the input terminal block 4 is electrically connected to each input terminal 21 of the plurality of power supply units 2.
- the second terminal 51 included in the output terminal block 5 is electrically connected to each output terminal 22 of the plurality of power supply units 2. Therefore, as in the first embodiment, the input voltage input to each of the plurality of branch breakers is input to each of the plurality of power supply units 2 via the first terminal 41 and the input terminal 21.
- the output voltage output from each of the plurality of power supply units 2 is input to the load circuit 7 via the second terminal 51 and the output terminal 22.
- the distribution board 6 has a plurality of power supply units 2, input terminal blocks 4, and outputs.
- the terminal block 5 is incorporated, and the stabilized power supply device 1 and the panel body 3 are integrated.
- the power distribution system of the present embodiment is different from that of the first embodiment in that the power distribution path to which the power generated by the distributed power supply 8 is supplied is different in the supply period.
- the structure of the power distribution system of this embodiment can be used together with Embodiment 2 and 3.
- symbol is attached
- the power distribution system of this embodiment will be described with reference to FIG.
- the power distribution path 104 is applied instead of the power distribution path 102 of the first embodiment.
- the power distribution path 104 connects the output of the power conditioner 81 and the first terminal 41 (see FIG. 1) of the stabilized power supply device 1.
- the electric power generated by the distributed power supply 8 is input to the first terminal 41 of the stabilized power supply device 1 through the power distribution path 104.
- the electric power from the electric power system 100 is input to the first terminal 41 of the power supply unit 2 through the distribution board 6 and the distribution path 101. These electric powers output from the second terminal 51 of the stabilized power supply device 1 are supplied to the load circuit 7.
- the power from the distributed power supply 8 is stabilized and the load circuit 7 is stabilized. Can be supplied.
- Embodiment 5 The power distribution system of the present embodiment is different from that of the first embodiment in that the power distribution path to which power generated by the distributed power supply 8 is supplied is different.
- the structure of the power distribution system of this embodiment can be used together with Embodiment 2 and 3. Further, the same components as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
- the power supply units 201 to 207 are used as the power supply unit 2.
- branch breaker 63 branch breakers 631 to 636 are used.
- the branch breaker 636 is electrically connected to the two power supply units 206 and 207.
- the power supply unit 206 is electrically connected to the power supply unit 207 between the cabinet 61 of the distribution board 6 and the panel body 3 of the stabilized power supply 1.
- the distribution paths 105 and 106 will be described with reference to FIG.
- the power distribution path 105 is applied instead of the power distribution path 102 of the first embodiment.
- the power distribution path 106 is applied instead of the power distribution path 103 of the first embodiment.
- the distribution path 105 connects the output of the power conditioner 81 and the second terminal 51 connected to the power supply unit 207.
- the power distribution path 106 connects the output of the power conditioner 81 and the second terminal 51 connected to the power supply unit 206.
- the power generated by the distributed power supply 8 is input to the second terminal 51 connected to the power supply unit 207 via the power distribution path 105.
- the power input from the second terminal 51 connected to the power supply unit 207 is output from the first terminal 41 connected to the power supply unit 207 via the circuit block 20 of the power supply unit 207. Since the power supply unit 207 and the power supply unit 206 are connected in parallel, the power output from the first terminal 41 connected to the power supply unit 207 is input to the first terminal 41 connected to the power supply unit 206. .
- Power from the power system 100 is supplied to the power supply unit 206 through the branch breaker 636 of the distribution board 6.
- the power output from the second terminal 51 connected to the power supply unit 206 is supplied to the load circuit 7.
- the power generated by the distributed power supply 8 is input to the second terminal 51 connected to the power supply unit 206 of the stabilized power supply device 1 through the power distribution path 106.
- the power from the power system 100 is blocked from being supplied to the load circuit 7 by the blocking unit 24 of the power supply unit 206.
- the power generated by the distributed power supply 8 does not pass through the circuit block 20 of the power supply unit 206, the power is supplied to the load circuit 7 without being cut off by the cut-off unit 24.
- the power generated by the distributed power supply 8 is input to the second terminal 51 connected to the power supply unit 206 via the power distribution path 106 and supplied to the load circuit 7. Therefore, the load circuit 7 can be used even when power from the power system 100 is not supplied.
- the power generated by the distributed power supply 8 is input to the power supply unit 2 and stabilized so that the voltage falls within the reference voltage range. It is possible to build a more reliable power distribution system.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Distribution Board (AREA)
- Ac-Ac Conversion (AREA)
Abstract
Provided are: a stabilized power source device that can be easily installed without having to carry out an investigation with regard to the securing of an installation space or to the laying of wiring; and a power distribution system that uses the same. A stabilized power source device (1) comprises multiple power source units (2) and a board main body (3). Each of the multiple power units (2) has an input terminal (21) and an output terminal (22). The board main body (3) has an installation space (31). The multiple power units (2) are disposed one-to-one with multiple branch breakers. A control part controls the magnitude of the input voltage that has been input to the input terminal (21) so that such input voltage falls within a prescribed output range. The voltage controlled by the control part is output from the output terminal as the output voltage. The multiple power source units (2) are installed in the installation space (31).
Description
本発明は、一般に安定化電源装置及びそれを用いた配電システムに関し、より詳細には入力電圧の大きさを所定の出力範囲に収まるように調節して調節後の電圧を出力する、安定化電源装置及びそれを用いた配電システムに関する。
The present invention generally relates to a stabilized power supply device and a power distribution system using the same, and more specifically, a stabilized power supply that adjusts the magnitude of an input voltage so as to be within a predetermined output range and outputs an adjusted voltage. The present invention relates to a device and a power distribution system using the same.
例えば、国や地域によっては電力会社からの電力供給が非常に不安定であり、停電も頻繁に発生することがある。しかし、変動の大きい系統電力を接続機器へそのまま供給すると、機器が正常動作しなくなる可能性がある。そこで、このような電力変動が大きい環境下では機器への入力電力を安定化する安定化電源装置(スタビライザ)が用いられている。安定化電源装置を介して系統電力を機器に供給することで、機器を保護することができる。
For example, in some countries and regions, power supply from electric power companies is very unstable, and power outages may occur frequently. However, if system power with large fluctuations is supplied to the connected device as it is, the device may not operate normally. Therefore, a stabilized power supply device (stabilizer) that stabilizes the input power to the device is used in an environment where the power fluctuation is large. By supplying the system power to the device via the stabilized power supply device, the device can be protected.
この種の安定化電源装置の一例として、供給電圧が規定範囲外になった場合に電気機器との接続を遮断し、さらに電圧が正常値に戻り規定の時間を経た場合に再接続を行う装置が提案されている(例えば文献1:US4707760A参照)。これにより、供給電圧の大きな変動から接続機器を保護することができる。
As an example of this type of stabilized power supply device, a device that cuts off the connection with an electrical device when the supply voltage is out of a specified range, and reconnects when the voltage returns to a normal value and a specified time has passed. Has been proposed (for example, see Document 1: US Pat. No. 4,707,760A). Thereby, a connection apparatus can be protected from the big fluctuation | variation of a supply voltage.
上記の従来技術は、電力供給する個々の機器に対して設置する保護装置であるため、機器の数だけ装置が必要となる。よって、設置スペースの確保や配線の取り回しが難しいという問題があった。
Since the above-described conventional technology is a protective device installed for each device that supplies power, the number of devices is required. Therefore, there has been a problem that it is difficult to secure an installation space and to handle wiring.
本発明は上記事由に鑑みて為されており、設置スペースの確保や配線の取り回しが簡単で、容易に取り付け可能である安定化電源装置及びそれを用いた配電システムを提供することを目的とする。
The present invention has been made in view of the above reasons, and an object of the present invention is to provide a stabilized power supply device that can easily be installed and easily secured in installation space and wiring and a power distribution system using the same. .
本発明の安定化電源装置は、複数の分岐ブレーカに対応して設けられ、入力端子に入力される入力電圧の大きさを所定の出力範囲に収まるように調節する調節部を有し、調節部で調節した電圧を出力端子から出力電圧として出力する複数の電源ユニットと、複数の電源ユニットを取り付ける取付スペースを有する盤本体とを備えていることを特徴とする。
The stabilized power supply device of the present invention includes an adjusting unit that is provided corresponding to a plurality of branch breakers and adjusts the magnitude of the input voltage input to the input terminal so as to be within a predetermined output range. A plurality of power supply units that output the voltage adjusted in step 1 as an output voltage from an output terminal, and a panel body having a mounting space for mounting the plurality of power supply units.
本発明の配電システムは、電力系統から供給される電力を分岐して供給することが可能な分電盤と、安定化電源装置と、分電盤及び安定化電源装置の少なくとも一方に電気的に接続されている分散電源とを備え、分散電源は、負荷回路との間の電力供給路に複数の電源ユニットのうち少なくとも1つの電源ユニットを含むように接続されていることを特徴とする。
The power distribution system of the present invention is electrically connected to at least one of a distribution board capable of branching and supplying power supplied from the power system, a stabilized power supply, and the distribution board and the stabilized power supply. The distributed power supply is connected to the power supply path between the power supply unit and the load circuit so as to include at least one power supply unit among the plurality of power supply units.
(実施形態1)
本実施形態に係る安定化電源装置1の構成を図1に示す。この安定化電源装置1は、複数の電源ユニット2と、盤本体3とを備えている。 (Embodiment 1)
The structure of the stabilizedpower supply device 1 according to this embodiment is shown in FIG. The stabilized power supply device 1 includes a plurality of power supply units 2 and a panel body 3.
本実施形態に係る安定化電源装置1の構成を図1に示す。この安定化電源装置1は、複数の電源ユニット2と、盤本体3とを備えている。 (Embodiment 1)
The structure of the stabilized
複数の電源ユニット2は、複数の分岐ブレーカ63(図4参照)に対応して設けられる。複数の電源ユニット2は、入力端子21に入力される入力電圧の大きさを所定の出力範囲に収まるように調節する調節部23(図2参照)を有し、調節部23で調節した電圧を出力端子22から出力電圧として出力する。盤本体3は、複数の電源ユニット2を取り付ける取付スペース31を有する。
The plurality of power supply units 2 are provided corresponding to the plurality of branch breakers 63 (see FIG. 4). The plurality of power supply units 2 have an adjustment unit 23 (see FIG. 2) that adjusts the magnitude of the input voltage input to the input terminal 21 to be within a predetermined output range. The output voltage is output from the output terminal 22. The panel body 3 has a mounting space 31 for mounting the plurality of power supply units 2.
また、安定化電源装置1は、入力端子台4と、出力端子台5とをさらに備えることが好ましい。入力端子台4は、複数の第1の端子41を有する。出力端子台5は、複数の第2の端子51を有する。複数の第1の端子41は、複数の電源ユニット2に一対一に対応し、各々が、対応する電源ユニット2の入力端子21と電気的に接続されている。複数の第2の端子51は、複数の電源ユニット2に一対一に対応し、各々が、対応する電源ユニット2の出力端子22と電気的に接続されている。
Moreover, it is preferable that the stabilized power supply device 1 further includes an input terminal block 4 and an output terminal block 5. The input terminal block 4 has a plurality of first terminals 41. The output terminal block 5 has a plurality of second terminals 51. The plurality of first terminals 41 correspond one-to-one to the plurality of power supply units 2, and each is electrically connected to the input terminal 21 of the corresponding power supply unit 2. The plurality of second terminals 51 correspond one-to-one to the plurality of power supply units 2, and each is electrically connected to the output terminal 22 of the corresponding power supply unit 2.
また、複数の電源ユニット2の各々は、出力電圧の出力を停止する遮断部24(図2参照)を有することが好ましい。遮断部24は、入力電圧の大きさが許容範囲を逸脱した場合に、出力電圧の出力を停止する。
In addition, each of the plurality of power supply units 2 preferably has a blocking unit 24 (see FIG. 2) for stopping output of the output voltage. When the magnitude of the input voltage deviates from the allowable range, the cutoff unit 24 stops outputting the output voltage.
さらに、複数の電源ユニット2の各々は、上記出力電圧の出力の停止後、所定の復帰時間が経過すると上記出力電圧の出力の再開を行う復帰部25(図2参照)を有することが好ましい。復帰部25は、遮断部24による出力電圧の出力の停止後、所定の復帰時間が経過すると出力電圧の出力の再開を行う。
Furthermore, each of the plurality of power supply units 2 preferably has a return unit 25 (see FIG. 2) that restarts output of the output voltage when a predetermined return time has elapsed after the output of the output voltage is stopped. The return unit 25 resumes output of the output voltage when a predetermined return time elapses after the output of the output voltage by the interrupting unit 24 is stopped.
本実施形態では、複数の電源ユニット2の各々は、入力端子21と、出力端子22と、回路ブロック20とを有している。図2に示すように、回路ブロック20は調節部23と、遮断部24と、復帰部25とを有する。
In the present embodiment, each of the plurality of power supply units 2 includes an input terminal 21, an output terminal 22, and a circuit block 20. As shown in FIG. 2, the circuit block 20 includes an adjustment unit 23, a blocking unit 24, and a return unit 25.
以下、本実施形態における安定化電源装置1の構成についてより詳細に説明する。ただし、以下に説明する構成は本発明の一例に過ぎず、本発明は下記実施形態に限定されることはなく、設計等に応じて種々の変更が可能である。なお本実施形態では、安定化電源装置1が壁に設置されると仮定して、各構成の配置や方向を説明する。ただし、本実施形態により安定化電源装置1の配置や方向を限定する趣旨ではない。
Hereinafter, the configuration of the stabilized power supply device 1 in the present embodiment will be described in more detail. However, the configuration described below is merely an example of the present invention, and the present invention is not limited to the following embodiment, and various modifications can be made according to design and the like. In the present embodiment, the arrangement and direction of each component will be described on the assumption that the stabilized power supply device 1 is installed on a wall. However, the present embodiment is not intended to limit the arrangement and direction of the stabilized power supply device 1.
本実施形態では、安定化電源装置1の盤本体3は例えば合成樹脂製であって、前面が開口した箱状に形成されている。また盤本体3には、開閉可能な扉(図示せず)が取り付けられている。この扉は盤本体3の内部の機器を露出させないためにカバーとして設けられており、盤本体3の内部の機器の点検などのメンテナンス時においては、扉を開けることで盤本体3の内部へのアクセスが可能となる。また、盤本体3の背板には、例えば四隅の各々に取付穴が形成されており、ねじ等による壁への取り付けが可能である。
In the present embodiment, the board body 3 of the stabilized power supply device 1 is made of, for example, a synthetic resin and is formed in a box shape with an open front surface. The panel body 3 is provided with a door (not shown) that can be opened and closed. This door is provided as a cover so as not to expose the equipment inside the panel body 3, and when performing maintenance such as inspection of the equipment inside the panel body 3, the door is opened to the inside of the panel body 3. Access is possible. In addition, the back plate of the panel body 3 has attachment holes formed at each of the four corners, for example, and can be attached to the wall with screws or the like.
盤本体3の内部には、背板の上端部に沿って横長の入力端子台4が取り付けられている。また、下端部に沿って横長の出力端子台5が取り付けてある。入力端子台4と出力端子台5との間には、それらと平行に横長の取付スペース31が設けられている。取付スペース31には、その長手方向に沿って例えば1本のDIN(Deutsche Industrie Normen)レールが設けられている。さらに、このDINレールには、複数の電源ユニット2が長手方向に並んで取り付けられている。
A horizontally long input terminal block 4 is attached inside the board body 3 along the upper end of the back plate. A horizontally long output terminal block 5 is attached along the lower end. A horizontally long mounting space 31 is provided between the input terminal block 4 and the output terminal block 5 in parallel therewith. In the mounting space 31, for example, one DIN (Deutsche Industry Normen) rail is provided along the longitudinal direction. Further, a plurality of power supply units 2 are attached to the DIN rail side by side in the longitudinal direction.
本実施形態において、入力端子台4と出力端子台5とは例えば合成樹脂製であって、横長の直方体状に形成されている。入力端子台4は入力端子台4の長手方向に沿って並ぶ複数の第1の端子41を有する。出力端子台5は出力端子台5の長手方向に沿って並ぶ複数の第2の端子51を有する。また、第1の台42と第2の台52とは、四隅の各々に取付穴が形成されている。これにより、入力端子台4と出力端子台5とは、例えばねじ等による盤本体3への取り付けが可能である。
In the present embodiment, the input terminal block 4 and the output terminal block 5 are made of, for example, a synthetic resin and are formed in a horizontally long rectangular parallelepiped shape. The input terminal block 4 has a plurality of first terminals 41 arranged along the longitudinal direction of the input terminal block 4. The output terminal block 5 has a plurality of second terminals 51 arranged along the longitudinal direction of the output terminal block 5. In addition, the first base 42 and the second base 52 are provided with attachment holes at each of the four corners. Thereby, the input terminal block 4 and the output terminal block 5 can be attached to the panel main body 3 with screws or the like, for example.
複数の電源ユニット2の各々は、例えば合成樹脂製であって、直方体状に形成されたケース26を有する。ケース26には、取付部(図示せず)と、回路ブロック20と、入力端子21と、出力端子22とが設けられている。上記取付部はケース26の一面に設けられており、この取付部によりDINレールへの取り付けが可能である。回路ブロック20はケース26の内部に収納されており、第3の端子231と第4の端子232とを有する。入力端子21は、ケース26の上板に設けられている。出力端子22は、ケース26の下板に設けられている。さらに、第3の端子231は、入力端子21と電気的に接続される。第4の端子232は、出力端子22と電気的に接続される。また、調節部23と、遮断部24と、復帰部25とは回路ブロック20の一部を構成している。
Each of the plurality of power supply units 2 has a case 26 made of, for example, a synthetic resin and formed in a rectangular parallelepiped shape. The case 26 is provided with an attachment portion (not shown), a circuit block 20, an input terminal 21, and an output terminal 22. The attachment portion is provided on one surface of the case 26, and the attachment portion can be attached to the DIN rail. The circuit block 20 is housed inside the case 26 and has a third terminal 231 and a fourth terminal 232. The input terminal 21 is provided on the upper plate of the case 26. The output terminal 22 is provided on the lower plate of the case 26. Further, the third terminal 231 is electrically connected to the input terminal 21. The fourth terminal 232 is electrically connected to the output terminal 22. In addition, the adjustment unit 23, the blocking unit 24, and the return unit 25 constitute a part of the circuit block 20.
次に、各電源ユニット2の内部構成について、図3を参照しながら詳細に説明する。なお、以下では複数の電源ユニット2のうちの1個の電源ユニット2の内部構成について説明するが、複数の電源ユニット2は同様の構成を採用している。
Next, the internal configuration of each power supply unit 2 will be described in detail with reference to FIG. In the following, the internal configuration of one power supply unit 2 of the plurality of power supply units 2 will be described, but the plurality of power supply units 2 adopt the same configuration.
本実施形態の回路ブロック20において、調節部23は、トランス233と、検出部234と、制御部235とを有する。トランス233の一次側と検出部234との各々は、第3の端子231と電気的に接続されている。よって、電源ユニット2に入力された入力電圧は、第3の端子231を介してトランス233の一次側と検出部234との各々に入力される。検出部234は、入力電圧を整流して電圧レベルを分圧する。検出部234は、ダイオードブリッジDBと、直列接続された一対の分圧抵抗R1,R2とを有している。分圧抵抗R1,R2の抵抗値の比率は例えば、R1:R2=99:1である。分圧抵抗R1,R2は、ダイオードブリッジDBのプラス側とマイナス側との間に並列接続されている。
In the circuit block 20 of the present embodiment, the adjustment unit 23 includes a transformer 233, a detection unit 234, and a control unit 235. Each of the primary side of the transformer 233 and the detection unit 234 is electrically connected to the third terminal 231. Therefore, the input voltage input to the power supply unit 2 is input to the primary side of the transformer 233 and the detection unit 234 via the third terminal 231. The detector 234 rectifies the input voltage and divides the voltage level. The detecting unit 234 includes a diode bridge DB and a pair of voltage dividing resistors R1 and R2 connected in series. The ratio of the resistance values of the voltage dividing resistors R1 and R2 is, for example, R1: R2 = 99: 1. The voltage dividing resistors R1 and R2 are connected in parallel between the plus side and the minus side of the diode bridge DB.
本実施形態において、検出部234は、制御部235に電気的に接続されている。また、分圧抵抗R1,R2の接続点に制御部235が電気的に接続されている。一方、トランス233の一次側コイルの巻線の巻き数をN1とし、二次側コイルの巻線の巻き数をN2とすると、トランス233の巻き数比N2/N1は例えば5/4である。また、本実施形態ではトランス233の二次側は、複数のタップ291~294を有する。複数のタップ291~294は、例えば第1のタップ291,第2のタップ292,第3のタップ293,第4のタップ294である。
In the present embodiment, the detection unit 234 is electrically connected to the control unit 235. In addition, a control unit 235 is electrically connected to a connection point between the voltage dividing resistors R1 and R2. On the other hand, when the number of turns of the primary coil of the transformer 233 is N1, and the number of turns of the secondary coil is N2, the turn ratio N2 / N1 of the transformer 233 is, for example, 5/4. In the present embodiment, the secondary side of the transformer 233 has a plurality of taps 291 to 294. The plurality of taps 291 to 294 are, for example, a first tap 291, a second tap 292, a third tap 293, and a fourth tap 294.
本実施形態では、第1のタップ291は、第4の端子232の一端と直接接続されており、基準電位を発生する。第2のタップ292は、例えば巻き数比N2/N1が4/5となるタップである。この場合、第1のタップ291と第2のタップ292との間には、トランス233の一次側に入力された電圧の4/5の大きさの電圧が発生する。第3のタップ293は、例えば巻き数比N2/N1が1となるタップである。この場合、第1のタップ291と第3のタップ293との間には、トランス233の一次側に入力された電圧と同じ大きさの電圧が発生する。第4のタップ294は、例えば巻き数比N2/N1が5/4となるタップである。この場合、第1のタップ291と第4のタップ294との間には、トランス233の一次側に入力された電圧の5/4の大きさの電圧が発生する。
In the present embodiment, the first tap 291 is directly connected to one end of the fourth terminal 232 and generates a reference potential. The second tap 292 is, for example, a tap having a winding ratio N2 / N1 of 4/5. In this case, a voltage having a magnitude of 4/5 of the voltage input to the primary side of the transformer 233 is generated between the first tap 291 and the second tap 292. The third tap 293 is, for example, a tap having a winding ratio N2 / N1 of 1. In this case, a voltage having the same magnitude as the voltage input to the primary side of the transformer 233 is generated between the first tap 291 and the third tap 293. For example, the fourth tap 294 is a tap having a winding ratio N2 / N1 of 5/4. In this case, a voltage that is 5/4 of the voltage input to the primary side of the transformer 233 is generated between the first tap 291 and the fourth tap 294.
また本実施形態では、第2,3,4のタップ292,293,294の各々と第4の端子232との間には、スイッチ要素238が電気的に接続されている。制御部235は、検出部234で検出された電圧の大きさに応じて、スイッチ要素238の各々を制御する。また本実施形態において、制御部235はマイコン(マイクロコンピュータ)を用いて構成されている。スイッチ要素238は、例えばリレーの接点である。
In this embodiment, the switch element 238 is electrically connected between each of the second, third, and fourth taps 292, 293, and 294 and the fourth terminal 232. The control unit 235 controls each of the switch elements 238 according to the magnitude of the voltage detected by the detection unit 234. In the present embodiment, the control unit 235 is configured using a microcomputer. The switch element 238 is, for example, a relay contact.
本実施形態において、遮断部24と復帰部25とは、例えばマイコンのプログラムを実行することで実現する。ただし、遮断部24と復帰部25とは、調節部23とは別に設けられていてもよい。
In the present embodiment, the shut-off unit 24 and the return unit 25 are realized by executing, for example, a microcomputer program. However, the blocking unit 24 and the return unit 25 may be provided separately from the adjusting unit 23.
以下、本実施形態における安定化電源装置1の接続態様及び動作について説明する。図4に示すように、本実施形態の安定化電源装置1は、屋内の壁に設置されている分電盤6の下側に設置されている。分電盤6は例えば、電力系統(系統電源)100に接続されている主幹ブレーカ62や複数の分岐ブレーカ63等の各種内器が、キャビネット61に取り付けられている、一般的な住宅用の分電盤である。
Hereinafter, the connection mode and operation of the stabilized power supply device 1 in the present embodiment will be described. As shown in FIG. 4, the stabilized power supply apparatus 1 of this embodiment is installed under the distribution board 6 installed in the indoor wall. The distribution board 6 is, for example, a general residential distribution unit in which various internal devices such as a main breaker 62 and a plurality of branch breakers 63 connected to a power system (system power supply) 100 are attached to a cabinet 61. It is a board.
安定化電源装置1の複数の電源ユニット2は、第1の端子41を介して、複数の分岐ブレーカ63に一対一に対応して接続される。また複数の電源ユニット2の各々は、第2の端子51を介して、個別の負荷回路7に電気的に接続される。すなわち、複数の電源ユニット2の各々は、複数の分岐ブレーカ63のいずれか1個と負荷回路7との間に電気的に接続される。負荷回路7は、エアコンや照明器具等の機器、コンセント、スイッチ、屋内配線等を含む。
The plurality of power supply units 2 of the stabilized power supply device 1 are connected to the plurality of branch breakers 63 in a one-to-one correspondence via the first terminals 41. Each of the plurality of power supply units 2 is electrically connected to an individual load circuit 7 via the second terminal 51. That is, each of the plurality of power supply units 2 is electrically connected between any one of the plurality of branch breakers 63 and the load circuit 7. The load circuit 7 includes devices such as an air conditioner and a lighting fixture, an outlet, a switch, an indoor wiring, and the like.
ここで、本実施形態における複数の電源ユニット2の各々は、調節部23により入力電圧を基準電圧の範囲(例えば200~270V)に収まるように安定化させて、出力電圧として出力する。ただし、入力電圧が許容範囲(例えば180~290V)を逸脱している場合、すなわち入力電圧が180Vより小さい場合、及び290Vより大きい場合には、遮断部24により出力電圧の出力を停止する。また、遮断部24により出力電圧の出力を停止した後、所定の復帰時間(例えば3分)が経過すると、復帰部25により出力電圧の出力を再開する。
Here, each of the plurality of power supply units 2 in the present embodiment stabilizes the input voltage so as to be within the range of the reference voltage (for example, 200 to 270 V) by the adjusting unit 23, and outputs it as an output voltage. However, when the input voltage deviates from an allowable range (for example, 180 to 290V), that is, when the input voltage is smaller than 180V or larger than 290V, the output of the output voltage is stopped by the cutoff unit 24. In addition, after the output of the output voltage is stopped by the shut-off unit 24, when a predetermined return time (for example, 3 minutes) elapses, the output of the output voltage is restarted by the return unit 25.
トランス233は、一次側に入力された入力電圧を降圧又は昇圧する。検出部234は、ダイオードブリッジDBにより整流した入力電圧の大きさを、分圧抵抗R1,R2により100分の1程度に分圧する。分圧抵抗R1,R2が分圧した後の電圧は、制御部235であるマイコンの入力ピンに入力される。制御部235は、入力ピンから入力された電圧の最大値を特定し、その最大値(以下、対象電圧という)が許容範囲内にあるか否かを判定する。
The transformer 233 steps down or boosts the input voltage input to the primary side. The detection unit 234 divides the magnitude of the input voltage rectified by the diode bridge DB to about 1/100 by the voltage dividing resistors R1 and R2. The voltage after the voltage dividing resistors R1 and R2 have divided the voltage is input to an input pin of a microcomputer that is the control unit 235. The control unit 235 specifies the maximum value of the voltage input from the input pin and determines whether or not the maximum value (hereinafter referred to as the target voltage) is within an allowable range.
その結果、対象電圧が許容範囲外である場合、制御部235はスイッチ要素238を全てオフにする信号をスイッチ要素238へ出力する。これにより、第3の端子231に入力された入力電圧は、出力電圧として出力されず、第4の端子232からの出力電圧の出力は停止する。
As a result, when the target voltage is outside the allowable range, the control unit 235 outputs a signal for turning off all the switch elements 238 to the switch element 238. As a result, the input voltage input to the third terminal 231 is not output as the output voltage, and the output of the output voltage from the fourth terminal 232 stops.
反対に、対象電圧が許容範囲内である場合、制御部235は対象電圧が基準電圧の範囲であるか否かを判定する。その結果、対象電圧が基準電圧の範囲内である場合、制御部235はスイッチ要素238のうち、第3のタップ293に対応するスイッチ要素238のみをオンとする信号をスイッチ要素238へ出力する。これにより、第3の端子231に入力された入力電圧は、電圧の大きさを変えずに出力電圧をして第4の端子232から出力される。
On the contrary, when the target voltage is within the allowable range, the control unit 235 determines whether or not the target voltage is within the reference voltage range. As a result, when the target voltage is within the range of the reference voltage, the control unit 235 outputs a signal for turning on only the switch element 238 corresponding to the third tap 293 among the switch elements 238 to the switch element 238. Thus, the input voltage input to the third terminal 231 is output from the fourth terminal 232 as an output voltage without changing the magnitude of the voltage.
また、対象電圧が許容電圧内であり且つ基準電圧の範囲の下限値を下回る場合、制御部235はスイッチ要素238のうち、第4のタップ294に対応するスイッチ要素のみをオンとする信号をスイッチ要素238へ出力する。これにより、第3の端子231に入力された入力電圧は、電圧の大きさが5/4倍に昇圧され、出力電圧として第4の端子232から出力される。
In addition, when the target voltage is within the allowable voltage and below the lower limit value of the reference voltage range, the control unit 235 switches a signal that turns on only the switch element corresponding to the fourth tap 294 among the switch elements 238. Output to element 238. As a result, the input voltage input to the third terminal 231 is boosted by a factor of 5/4 and output from the fourth terminal 232 as an output voltage.
これに対し、対象電圧が許容電圧内であり且つ基準電圧の範囲の上限値を上回る場合、制御部235はスイッチ要素238のうち、第2のタップ292に対応するスイッチ要素のみをオンとする信号をスイッチ要素238へ出力する。これにより、第3の端子231に入力された入力電圧は、電圧の大きさが4/5倍に降圧され、出力電圧として第4の端子232から出力される。
On the other hand, when the target voltage is within the allowable voltage and exceeds the upper limit value of the reference voltage range, the control unit 235 turns on only the switch element corresponding to the second tap 292 among the switch elements 238. Is output to the switch element 238. As a result, the input voltage input to the third terminal 231 is stepped down by a factor of 4/5 and is output from the fourth terminal 232 as an output voltage.
また、対象電圧が許容範囲外である場合において、第4の端子232からの出力電圧の出力が停止すると、制御部235は対象電圧が再び許容範囲内になるまで監視する。そして、対象電圧が許容範囲内となり、且つその後3分間継続して許容範囲内であれば、出力電圧の出力を再開する。
Also, when the output of the output voltage from the fourth terminal 232 is stopped when the target voltage is outside the allowable range, the control unit 235 monitors until the target voltage falls within the allowable range again. If the target voltage falls within the allowable range and then continues for 3 minutes within the allowable range, the output of the output voltage is resumed.
このようにして、調節部23は、複数の電源ユニット2に入力された入力電圧が許容範囲内であれば基準電圧の範囲に収まるように安定化する。また遮断部24は、高電圧時や停電時のように入力電圧が許容範囲を逸脱している場合には、出力電圧の出力を停止して負荷回路7を保護する。さらに復帰部25は、出力電圧の出力を停止した後、所定の復帰時間が経過すると出力電圧の出力を再開する。
In this way, the adjusting unit 23 stabilizes the input voltage input to the plurality of power supply units 2 so as to be within the reference voltage range if the input voltage is within the allowable range. Moreover, the interruption | blocking part 24 stops the output of an output voltage, and protects the load circuit 7, when the input voltage has deviated from the tolerance | permissible_range at the time of a high voltage or a power failure. Furthermore, after the output unit 25 stops outputting the output voltage, the output unit 25 resumes outputting the output voltage when a predetermined return time has elapsed.
ここで、文献1に記載の安定化電源装置のように、個々の機器に対して設置する安定化電源装置(以下、主幹用安定化電源装置という)は、一つの安定化電源装置が正常に機能しない場合でも他の安定化電源装置やその接続機器には影響しないという利点がある。またその一方で、機器の数だけ安定化電源装置が必要であるため、設置スペースの確保や配線の取り回しが難しいという欠点がある。
Here, as in the stabilized power supply described in Document 1, a stabilized power supply installed for each device (hereinafter referred to as a main power supply for the main trunk) is normally one stabilized power supply. Even if it does not function, there is an advantage that it does not affect other stabilized power supply devices and connected devices. On the other hand, since there are as many stabilized power supply devices as the number of devices, there is a drawback in that it is difficult to secure installation space and route wiring.
これに対し、屋内分電盤の主幹ブレーカと系統電源の間に設置される安定化電源装置(以下、住宅用安定化電源装置という)が考えられる。この安定化電源装置は、屋内の全ての機器に対して1台のみ接続される。この安定化電源装置は屋内に1台のみ設置すればよく、個々の機器に対して設置する安定化電源装置に比べて設置が容易であるという利点がある。またその一方で、1台の安定化電源装置が故障すれば、屋内における全ての機器に影響するという欠点がある。また、機器の台数が増え安定化電源装置の電流容量を変える際には、1台の安定化電源装置を丸ごと入れ替える必要がある。さらに、安定化電源装置自体のサイズや重量が比較的大きいという問題がある。
On the other hand, a stabilized power supply device (hereinafter referred to as a residential stable power supply device) installed between the main breaker of the indoor distribution board and the system power supply is conceivable. Only one stabilized power supply unit is connected to all indoor devices. Only one stabilized power supply device needs to be installed indoors, and there is an advantage that installation is easier than a stabilized power supply device installed for each device. On the other hand, if one stabilized power supply device fails, there is a drawback that it affects all the indoor devices. Further, when the number of devices increases and the current capacity of the stabilized power supply device is changed, it is necessary to replace the entire stabilized power supply device. Further, there is a problem that the size and weight of the stabilized power supply itself are relatively large.
本実施形態の安定化電源装置1は、複数の分岐ブレーカ63の各々に出力電圧を安定化させる複数の電源ユニット2を設けている。これにより、一つの電源ユニットが正常に機能しない場合でも、他の電源ユニットに接続されている負荷回路7には影響がない。また、本実施形態の安定化電源装置1は、盤本体3に上記の複数の電源ユニット2を備えている。これにより、屋内に一台の安定化電源装置1のみを設置すればよいので、容易に設置できる。よって、本実施形態の安定化電源装置1では、上述した主幹用安定化電源装置及び住宅用安定化電源装置の欠点が解消されており、設置スペースの確保や配線の取り回しを検討することなく、容易に取り付けることができる。すなわち、この安定化電源装置1によれば、設置スペースの確保や配線の取り回しが簡単で、容易に取り付け可能である、という利点がある。
The stabilized power supply device 1 of the present embodiment is provided with a plurality of power supply units 2 that stabilize the output voltage in each of the plurality of branch breakers 63. Thereby, even when one power supply unit does not function normally, the load circuit 7 connected to another power supply unit is not affected. Further, the stabilized power supply 1 of the present embodiment includes the plurality of power supply units 2 in the panel body 3. Thereby, since only one stabilization power supply device 1 should just be installed indoors, it can install easily. Therefore, in the stabilized power supply 1 of the present embodiment, the disadvantages of the above-described main stabilized power supply apparatus and residential stabilized power supply apparatus have been eliminated, and without considering installation space and wiring arrangement, Easy to install. That is, according to the stabilized power supply device 1, there is an advantage that the installation space can be secured and the wiring can be easily and easily installed.
次に、本実施形態に係る配電システムについて説明する。
Next, the power distribution system according to this embodiment will be described.
配電システムは、安定化電源装置1と、分電盤6と、分散電源8と、負荷回路7とを備える。分散電源8は、パワーコンディショナ(以後、パワコンと略す。)81と、PV(Photovoltaic)パネル82とを有する。
The power distribution system includes a stabilized power supply device 1, a distribution board 6, a distributed power supply 8, and a load circuit 7. The distributed power supply 8 includes a power conditioner (hereinafter abbreviated as “power conditioner”) 81 and a PV (Photovoltaic) panel 82.
本実施形態における分散電源8について、図5を参照にして説明する。ただし、パワコン81及びPVパネル82の詳細な構造については、図示並びに説明を省略する。
The distributed power supply 8 in this embodiment will be described with reference to FIG. However, the detailed structures of the power conditioner 81 and the PV panel 82 are not shown and described.
パワコン81は、インバータ(図示せず)等を有し、直流電力を交流電力に変換する。PVパネル82は、複数の太陽電池セル(図示せず)等を有し、例えば、屋根に設置されて、太陽光によって発電する。PVパネル82には、生成した直流電力を出力する出力ケーブル(図示せず)の一端が接続されている。前記ケーブルの他端は、パワコン81に接続される。
The power conditioner 81 includes an inverter (not shown) and converts DC power to AC power. The PV panel 82 has a plurality of solar cells (not shown) and the like, and is installed on a roof, for example, and generates power by sunlight. One end of an output cable (not shown) that outputs the generated DC power is connected to the PV panel 82. The other end of the cable is connected to the power conditioner 81.
パワコン81は、電力系統100と系統連系しているので、電力系統100の電力が供給される負荷回路7に、PVパネル82によって生成される電力を供給することが可能である。
Since the power conditioner 81 is interconnected with the power system 100, the power generated by the PV panel 82 can be supplied to the load circuit 7 to which the power of the power system 100 is supplied.
ところで、例えば、負荷回路7を使用するのに必要な電力が、分散電源8によって生成される電力だけでは不足している場合、不足分の電力は、電力系統100の電力によって、補うことができる。
By the way, for example, when the power required to use the load circuit 7 is insufficient only by the power generated by the distributed power supply 8, the insufficient power can be supplemented by the power of the power system 100. .
また、分散電源8によって生成される電力が十分に足りている場合、分散電源8によって生成される電力から、負荷回路7に使用される電力を差し引いた電力は、電力系統(電力系統100)に逆潮流することも可能である。
When the power generated by the distributed power supply 8 is sufficient, the power obtained by subtracting the power used for the load circuit 7 from the power generated by the distributed power supply 8 is supplied to the power system (power system 100). It is also possible to reverse flow.
本実施形態の配電システムについて、図5を参照して説明する。電力系統100から配電システムに入力される電圧が許容範囲内にある期間を供給期間と呼び、電力系統100から入力される電圧が許容範囲外にある期間を遮断期間と呼ぶ。ただし、電力系統100が停電して電力が遮断されている期間は停電期間と呼ぶ。
The power distribution system of this embodiment will be described with reference to FIG. A period in which the voltage input from the power system 100 to the power distribution system is within the allowable range is referred to as a supply period, and a period in which the voltage input from the power system 100 is outside the allowable range is referred to as a cutoff period. However, the period during which the power system 100 is blacked out and the power is cut off is called a blackout period.
ここで、配電路101,102,103について、図5を参照して説明する。
Here, the power distribution paths 101, 102, 103 will be described with reference to FIG.
配電路101は、複数の分岐ブレーカ63の二次側と安定化電源装置1の複数の第1の端子41とを接続する。配電路102は、パワコン81の出力部811と分電盤6の主幹ブレーカ62とを接続する。配電路103は、パワコン81が後述の自立運転をする場合に利用される配電路であって、パワコン81の出力部812と安定化電源装置1の第2の端子51の各々とを接続する。
The distribution path 101 connects the secondary side of the plurality of branch breakers 63 and the plurality of first terminals 41 of the stabilized power supply device 1. The power distribution path 102 connects the output unit 811 of the power conditioner 81 and the main breaker 62 of the distribution board 6. The power distribution path 103 is a power distribution path used when the power conditioner 81 performs a self-sustained operation described later, and connects the output unit 812 of the power conditioner 81 and each of the second terminals 51 of the stabilized power supply device 1.
パワコン81の自立運転について説明する。パワコン81は、常に電力系統100の電圧を監視している。さらに、パワコン81は、系統連系用の出力部811と自立運転用の出力部812とを有する。パワコン81は、遮断期間、及び停電期間に自立運転を行う。自立運転を行う場合、まず、パワコン81は、電力系統100に逆潮流が発生しないように、電力系統100と解列する。そして、パワコン81は、電力の出力先を系統連系用の出力部811から自立運転用の出力部812に切り換える。系統連系用の出力部811は配電路102と接続されており、自立運転用の出力部812は配電路103と接続されている。パワコン81はこの2つの出力部811,812を切り換えることで、供給期間と、遮断期間及び停電期間とで配電路を切り換えることができる。
The self-supporting operation of the power conditioner 81 will be described. The power conditioner 81 constantly monitors the voltage of the power system 100. Further, the power conditioner 81 includes an output unit 811 for grid connection and an output unit 812 for independent operation. The power conditioner 81 performs a self-sustained operation during the interruption period and the power outage period. When performing the independent operation, first, the power conditioner 81 is disconnected from the power system 100 so that a reverse power flow does not occur in the power system 100. And the power conditioner 81 switches the output destination of electric power from the output part 811 for grid connection to the output part 812 for independent operation. An output unit 811 for grid connection is connected to the distribution path 102, and an output unit 812 for independent operation is connected to the distribution path 103. The power conditioner 81 can switch the distribution path between the supply period, the cutoff period, and the power failure period by switching the two output units 811 and 812.
供給期間においては、分散電源8によって生成される電力は、配電路102を介して分電盤6の主幹ブレーカ62(図4参照)の一次側に入力される。電力系統100からの電力及び分散電源8によって生成される電力は、ともに配電路101を介し、安定化電源装置1を経て負荷回路7に供給される。
During the supply period, the electric power generated by the distributed power supply 8 is input to the primary side of the main breaker 62 (see FIG. 4) of the distribution board 6 via the distribution path 102. Both the power from the power system 100 and the power generated by the distributed power supply 8 are supplied to the load circuit 7 via the power distribution path 101 and the stabilized power supply device 1.
遮断期間においては、電力系統100からの電力は、電源ユニット2の遮断部24(図2参照)によって遮断される。分散電源8によって生成される電力は、配電路103を介して、安定化電源装置1の第2の端子51(図1参照)に入力される。つまり、分散電源8によって生成される電力は、電源ユニット2の回路ブロック20を介さないので、遮断部24によって遮断されることなく負荷回路7に供給される。したがって、電力系統100からの電力が遮断部24によって遮断されても、負荷回路7は継続して使用することができる。
During the interruption period, the electric power from the electric power system 100 is interrupted by the interruption unit 24 (see FIG. 2) of the power supply unit 2. The electric power generated by the distributed power supply 8 is input to the second terminal 51 (see FIG. 1) of the stabilized power supply device 1 through the distribution path 103. That is, the electric power generated by the distributed power supply 8 does not go through the circuit block 20 of the power supply unit 2 and is supplied to the load circuit 7 without being cut off by the cut-off unit 24. Therefore, even if the power from the power system 100 is cut off by the cut-off unit 24, the load circuit 7 can be used continuously.
停電期間においては、分散電源8によって生成される電力は、配電路103を介して、安定化電源装置1の第2の端子51に入力されて、負荷回路7へ供給される。したがって、電力系統100が停電等による供給停止の状態であっても、負荷回路7を継続して使用することができる。
During the blackout period, the power generated by the distributed power supply 8 is input to the second terminal 51 of the stabilized power supply 1 via the distribution path 103 and supplied to the load circuit 7. Therefore, even when the power system 100 is in a supply stop state due to a power failure or the like, the load circuit 7 can be continuously used.
このように、パワコン81の自立運転によって、遮断期間及び停電期間のどちらの場合においても、配電路を切り換えて負荷回路7に電力を供給し、負荷回路7を継続して使用することができる。
Thus, by the self-supporting operation of the power conditioner 81, it is possible to switch the power distribution path to supply power to the load circuit 7 and continue to use the load circuit 7 in both the interruption period and the power failure period.
ただし、安定化電源装置1は、分散電源8を用いた配電システムの一部として利用されなくてもよい。
However, the stabilized power supply device 1 may not be used as a part of a power distribution system using the distributed power supply 8.
なお、複数の電源ユニット2は複数の分岐ブレーカ63と負荷回路7との間に設置されていなくてもよい。複数の電源ユニット2は、複数の分岐ブレーカ63に一対一に対応して設置されていればよく、例えば主幹ブレーカ62と複数の分岐ブレーカ63の間に設置されてもよい。
In addition, the plurality of power supply units 2 may not be installed between the plurality of branch breakers 63 and the load circuit 7. The plurality of power supply units 2 only need to be installed in a one-to-one correspondence with the plurality of branch breakers 63. For example, the plurality of power supply units 2 may be installed between the main breaker 62 and the plurality of branch breakers 63.
本実施形態では、盤本体3と、入力端子台4と、出力端子台5と、複数の電源ユニット2のケース26とは合成樹脂製であるが、これらは合成樹脂製でなくてもよく、例えば金属製でもよい。また、盤本体3は扉を有していなくてもよい。さらに、取付スペース31には、本実施形態のようにDINレールが設けられていなくてもよく、複数の電源ユニット2をねじ等により固定することが可能な設置盤が設けられていてもよい。その場合、複数の電源ユニット2はそれに対応した取付構造である必要がある。
In the present embodiment, the panel body 3, the input terminal block 4, the output terminal block 5, and the case 26 of the plurality of power supply units 2 are made of synthetic resin, but these may not be made of synthetic resin, For example, it may be made of metal. The board body 3 may not have a door. Further, the mounting space 31 may not be provided with a DIN rail as in the present embodiment, and may be provided with an installation panel capable of fixing the plurality of power supply units 2 with screws or the like. In that case, the plurality of power supply units 2 need to have a mounting structure corresponding thereto.
また、電源ユニット2の回路ブロック20が有するトランス233は、本実施形態のように一次側と二次側とが電気的に絶縁されている絶縁トランスでなくてもよい。トランス233は、一次巻線と二次巻線とが一部を兼用し、一次側と二次側とが電気的に絶縁されていない単巻トランスでもよい。単巻トランスでは、一次巻線と二次巻線との兼用部分である分路巻線のインピーダンスが小さいため、電圧変動が小さい。また、分路巻線では一次巻線と二次巻線との巻き数比N2/N1に応じた電流しか流れないため、絶縁トランスに比べて巻線の線径を小さくすることができる。従って、トランス233を単巻トランスとすることで、トランス233を絶縁トランスとした場合に比べて小型化・軽量化できる可能性がある。
Further, the transformer 233 included in the circuit block 20 of the power supply unit 2 may not be an insulating transformer in which the primary side and the secondary side are electrically insulated as in the present embodiment. The transformer 233 may be a single-winding transformer in which the primary winding and the secondary winding share a part, and the primary side and the secondary side are not electrically insulated. In the single-winding transformer, since the impedance of the shunt winding, which is a shared portion of the primary winding and the secondary winding, is small, the voltage fluctuation is small. Further, in the shunt winding, only the current corresponding to the turn ratio N2 / N1 between the primary winding and the secondary winding flows, so that the wire diameter of the winding can be made smaller than that of the insulating transformer. Therefore, by using the transformer 233 as a single-winding transformer, there is a possibility that it can be reduced in size and weight as compared with the case where the transformer 233 is an insulating transformer.
ところで、本実施形態の変形例として、複数の電源ユニット2の各々は、図6に示すように、3つの接続状態を切り替える切替スイッチ27を有していてもよい。3つの接続状態のうち第1の接続状態では、入力端子21と出力端子22との間に調節部23が電気的に接続されている。第2の接続状態では、入力端子21が出力端子22に直接接続されている。第3の接続状態では、入力端子21が出力端子22から電気的に切り離されている。これにより、ユーザは複数の電源ユニット2の各々について、使用/不使用を選択できる。また、分電盤内部のブレーカを扱うことなく、負荷回路7への電力供給を遮断することができる。
By the way, as a modification of the present embodiment, each of the plurality of power supply units 2 may have a changeover switch 27 for switching between three connection states as shown in FIG. In the first connection state among the three connection states, the adjustment unit 23 is electrically connected between the input terminal 21 and the output terminal 22. In the second connection state, the input terminal 21 is directly connected to the output terminal 22. In the third connection state, the input terminal 21 is electrically disconnected from the output terminal 22. Thereby, the user can select use / non-use for each of the plurality of power supply units 2. Further, the power supply to the load circuit 7 can be cut off without handling the breaker inside the distribution board.
なお、この切替スイッチ27は、3つの接続状態のうち少なくとも2つの接続状態を切り替える構成であればよい。また、切替スイッチ27は、入力端子21と第3の端子231との間に電気的に接続されているか、もしくは第4の端子232と出力端子22との間に接続されることが望ましい。この切替スイッチ27により、複数の電源ユニット2の各々を使用するか否か、適宜ユーザが選択することができる。
In addition, this changeover switch 27 should just be the structure which switches at least two connection states among three connection states. The changeover switch 27 is preferably connected between the input terminal 21 and the third terminal 231 or connected between the fourth terminal 232 and the output terminal 22. With the changeover switch 27, the user can appropriately select whether or not to use each of the plurality of power supply units 2.
また、上記の接続態様では、各電源ユニット2は一対の出力端子22を1組だけ有するが、複数の電源ユニット2の各々は、出力端子22を複数有することが望ましい。例えば、定格電流が5Aである負荷回路73が2個接続される場合、各電源ユニット2が1組の出力端子22しか有していなければ、電源ユニット2は2個必要となる。一方で、各電源ユニット2が複数の出力端子22を有していれば、1個の各電源ユニットに負荷回路73を2個接続可能である。よって、各電源ユニット2が複数の出力端子22を有している場合、各電源ユニット2が1組の出力端子22しか有していない場合に比べて、使用できる負荷回路7の数が増え、ユーザの自由度が高まる。
In the above connection mode, each power supply unit 2 has only one pair of output terminals 22, but each of the plurality of power supply units 2 preferably has a plurality of output terminals 22. For example, when two load circuits 73 with a rated current of 5 A are connected, if each power supply unit 2 has only one set of output terminals 22, two power supply units 2 are required. On the other hand, if each power supply unit 2 has a plurality of output terminals 22, two load circuits 73 can be connected to one power supply unit. Therefore, when each power supply unit 2 has a plurality of output terminals 22, the number of load circuits 7 that can be used is increased compared to a case where each power supply unit 2 has only one set of output terminals 22, The degree of freedom of the user is increased.
複数の電源ユニット2の各々は、図2に示すように、復帰時間を設定可能な設定部28を有することが望ましい。例えば、複数の電源ユニット2の各々は、操作部281を有している。操作部281は、復帰時間を設定するつまみ又はボタンを有しており、ユーザはこの操作部281にて復帰時間を設定する。ユーザが設定した復帰時間により、制御部235内で設定されている復帰時間が上書きされ、復帰時間は変更される。これによりユーザ自らが、接続している負荷回路7に応じて適切な復帰時間を設定することができる。
As shown in FIG. 2, each of the plurality of power supply units 2 desirably has a setting unit 28 that can set a return time. For example, each of the plurality of power supply units 2 has an operation unit 281. The operation unit 281 has a knob or button for setting a return time, and the user sets the return time using the operation unit 281. The return time set in the control unit 235 is overwritten by the return time set by the user, and the return time is changed. Thereby, the user himself / herself can set an appropriate return time according to the connected load circuit 7.
ところで、負荷回路7の許容電流の範囲を超える大電流(例えば、落雷による)が電力系統100から流れる場合がある。このような場合、電力系統から流れる大電流が本実施形態の配電システムへと流れてしまい、電源ユニット2の回路ブロック20(図1参照)や負荷回路7が誤動作してしまう可能性がある。安定化電源装置1や負荷回路7の誤動作を防止するために、安定化電源装置1は、図7に示すように、短絡部91を有することが好ましい。短絡部91は、安定化電源装置1に大電流が流れ込んだ場合、第1の端子41(図1参照)と電源ユニット2の入力端子21(図1参照)との間を電気的に短絡させる。短絡部91は、例えばバリスタ等のサージ吸収素子、ヒューズ等の回路部品を用いて構成される。
Incidentally, a large current (for example, due to a lightning strike) exceeding the allowable current range of the load circuit 7 may flow from the power system 100. In such a case, a large current flowing from the power system flows to the power distribution system of the present embodiment, and the circuit block 20 (see FIG. 1) of the power supply unit 2 and the load circuit 7 may malfunction. In order to prevent malfunction of the stabilized power supply 1 and the load circuit 7, the stabilized power supply 1 preferably has a short-circuit portion 91 as shown in FIG. The short-circuit part 91 electrically short-circuits between the 1st terminal 41 (refer FIG. 1) and the input terminal 21 (refer FIG. 1) of the power supply unit 2, when a heavy current flows into the stabilized power supply device 1. FIG. . The short-circuit portion 91 is configured using, for example, a surge absorbing element such as a varistor and a circuit component such as a fuse.
サージ吸収素子(図示せず)の一端は、グランドに接続される。また、サージ吸収素子のグランドに接続されている端と反対側の端は、第1の端子41と入力端子21との間に電気的に接続される。ゆえに、大電流は回路ブロック20に到達するまでにサージ吸収素子を通ってグランドへ流れるので、短絡部91は、回路ブロック20や負荷回路7を保護することが可能である。なお、ヒューズ(図示せず)は、サージ吸収素子に流れる電流の経路上に電気的に接続される。
One end of a surge absorbing element (not shown) is connected to the ground. Further, the end of the surge absorbing element opposite to the end connected to the ground is electrically connected between the first terminal 41 and the input terminal 21. Therefore, since a large current flows to the ground through the surge absorbing element before reaching the circuit block 20, the short circuit portion 91 can protect the circuit block 20 and the load circuit 7. The fuse (not shown) is electrically connected on the path of the current flowing through the surge absorbing element.
また、電力系統100からの電力が停電等により一時的に遮断される場合、及び一時的に電圧が低下する場合、負荷回路7は継続使用するのに十分な電力が保てず停止してしまうことがある。このような事態を回避するために、図8に示すように、負荷回路7に遅延なく自動的に電力を供給する無停電電源装置(以後、UPS(Uninterrupteble Power Supply)と略す。)92を有することが好ましい。UPS92は、詳細な構造についての図示並びに説明を省略する。UPS92は、安定化電源装置1の第1の端子41(図2参照)と電源ユニット2の入力端子21(図1参照)との間に設置される。さらに、UPS92は、長時間の停電等に対応するために、図9に示すように、蓄電池93を接続することが好ましい。この場合、UPS92は、蓄電池93からの直流電力を交流電力に変換し、安定化電源装置1に電力を供給する。したがって、長時間の停電等が発生した場合においても、負荷回路7を継続して使用することができる。
In addition, when the power from the power system 100 is temporarily interrupted due to a power failure or the like, or when the voltage temporarily decreases, the load circuit 7 stops without being able to maintain sufficient power for continued use. Sometimes. In order to avoid such a situation, as shown in FIG. 8, an uninterruptible power supply (hereinafter referred to as UPS (Uninterruptable Power Supply)) 92 that automatically supplies power to the load circuit 7 without delay is provided. It is preferable. The UPS 92 omits the illustration and description of the detailed structure. The UPS 92 is installed between the first terminal 41 (see FIG. 2) of the stabilized power supply device 1 and the input terminal 21 (see FIG. 1) of the power supply unit 2. Furthermore, it is preferable that the UPS 92 is connected to a storage battery 93 as shown in FIG. In this case, the UPS 92 converts DC power from the storage battery 93 to AC power and supplies the stabilized power supply 1 with power. Therefore, the load circuit 7 can be continuously used even when a long-time power failure occurs.
さらに、安定化電源装置1は、図10に示すように、消費電力の表示や過電流保護のために電力を検出する電力検出部94を有することが好ましい。電力検出部94は、安定化電源装置1の第1の端子41と電源ユニット2の入力端子21との間に設置される。電力検出部94は、制御部(図示せず)、通信部(図示せず)等を有する。制御部は、例えばマイコン(マイクロコンピュータ)、抵抗器等の回路部品を用いて構成される。通信部は、有線通信する場合に必要なコネクタ、及び無線通信する場合に必要な無線LAN(Local Area Network)アンテナ等の回路部品を用いて構成される。電力検出部94は、安定化電源装置1に入力される電圧及び電流を監視し、これらの値から制御部によって安定化電源装置1に入力される電力を検出する。電力検出部94は、検出結果(電力値)を送信部によって例えば液晶ディスプレイを用いた表示機器に送信して、ユーザに報知することが可能である。また、電力検出部94は、回路ブロック20(図1参照)や負荷回路7が誤動作してしまう可能性がある大電流を検出した場合、通信部によって負荷回路7に信号を送信して、負荷回路7への電力を遮断することが可能である。
Furthermore, as shown in FIG. 10, the stabilized power supply device 1 preferably includes a power detection unit 94 that detects power for power consumption display and overcurrent protection. The power detection unit 94 is installed between the first terminal 41 of the stabilized power supply device 1 and the input terminal 21 of the power supply unit 2. The power detection unit 94 includes a control unit (not shown), a communication unit (not shown), and the like. A control part is comprised using circuit components, such as a microcomputer (microcomputer) and a resistor, for example. The communication unit is configured using connectors necessary for wired communication and circuit components such as a wireless LAN (Local Area Network) antenna necessary for wireless communication. The power detection unit 94 monitors the voltage and current input to the stabilized power supply 1 and detects the power input to the stabilized power supply 1 by the control unit from these values. The power detection unit 94 can notify the user by transmitting a detection result (power value) to a display device using, for example, a liquid crystal display by the transmission unit. Further, when the power detection unit 94 detects a large current that may cause the circuit block 20 (see FIG. 1) or the load circuit 7 to malfunction, the power detection unit 94 transmits a signal to the load circuit 7 by the communication unit. It is possible to cut off the power to the circuit 7.
なお、本実施形態において、負荷回路7は、配電システムの構成要件として含まれなくてもよい。また、1つの電源ユニット2に複数の負荷回路7が電気的に接続されてもよい。
In the present embodiment, the load circuit 7 may not be included as a configuration requirement of the power distribution system. A plurality of load circuits 7 may be electrically connected to one power supply unit 2.
さらに、本実施形態において、分散電源8がパワコン81とPVパネル82とを備える例を示したが、これに限らず、分散電源8は蓄電池や燃料電池等を備えてもよい。
Furthermore, in this embodiment, although the distributed power supply 8 showed the example provided with the power conditioner 81 and the PV panel 82, not only this but the distributed power supply 8 may be provided with a storage battery, a fuel cell, etc.
ところで、文献1の配電システムにおいて、電力系統100からの供給電圧が規定範囲外、つまり、遮断期間及び停電期間においては、再接続が行われるまで複数の負荷回路7に電力が供給されなくなり、複数の負荷回路7を使用することができなかった。
By the way, in the distribution system of Document 1, the supply voltage from the power system 100 is out of the specified range, that is, in the interruption period and the power failure period, power is not supplied to the plurality of load circuits 7 until reconnection is performed. The load circuit 7 could not be used.
一方、本実施形態の配電システムでは、分散電源8を用いることによって、遮断期間及び停電期間においても、複数の負荷回路7を継続して使用することができる。
On the other hand, in the power distribution system according to the present embodiment, by using the distributed power supply 8, a plurality of load circuits 7 can be continuously used even during the interruption period and the power failure period.
すなわち、本実施形態の配電システムは、電力系統100から供給される電力を分岐して供給することが可能な分電盤6と、安定化電源装置1とを備える。さらに、本実施形態の配電システムは、分電盤6及び安定化電源装置1の少なくとも一方に電気的に接続されている分散電源8を備える。分散電源8は、負荷回路7との間の電力供給路に複数の電源ユニット2のうち少なくとも1つの電源ユニット2を含むように接続されている。
That is, the power distribution system of the present embodiment includes a distribution board 6 that can branch and supply power supplied from the power system 100 and the stabilized power supply device 1. Furthermore, the power distribution system of this embodiment includes a distributed power supply 8 that is electrically connected to at least one of the distribution board 6 and the stabilized power supply device 1. The distributed power supply 8 is connected to the power supply path to the load circuit 7 so as to include at least one power supply unit 2 among the plurality of power supply units 2.
このように、本実施形態の配電システムは、分散電源8と負荷回路7との間の電力供給路に複数の電源ユニット2の少なくとも1つを備える。こうすることで、電力系統100からの電力が遮断されても負荷回路7に電力を供給できる配電システムを提供することができる。しかも、供給期間において、本実施形態の配電システムでは、電力系統100からの電力及び分散電源8によって生成される電力の両方が、電源ユニット2を通るので、安定した電力を負荷回路7に供給することが可能である。
As described above, the power distribution system according to the present embodiment includes at least one of the plurality of power supply units 2 in the power supply path between the distributed power supply 8 and the load circuit 7. By doing so, it is possible to provide a power distribution system that can supply power to the load circuit 7 even when power from the power system 100 is cut off. Moreover, in the power distribution system of the present embodiment, since both the power from the power system 100 and the power generated by the distributed power supply 8 pass through the power supply unit 2 in the supply period, stable power is supplied to the load circuit 7. It is possible.
本実施形態の配電システムでは、分散電源8の自立運転によって生成される電力を安定化電源装置1に供給する配線(配電路103)が設けられていることが好ましい。
In the power distribution system of the present embodiment, it is preferable that a wiring (distribution path 103) for supplying power generated by the independent operation of the distributed power supply 8 to the stabilized power supply device 1 is provided.
このように、本実施形態の配電システムでは、配電路103を有することによって、遮断期間及び停電期間でも分散電源8から負荷回路7に電力を供給し、負荷回路7を継続して利用することが可能である。
Thus, in the power distribution system of this embodiment, by having the power distribution path 103, it is possible to supply power from the distributed power source 8 to the load circuit 7 even during the interruption period and the power failure period, and to continue using the load circuit 7. Is possible.
本実施形態の配電システムでは、複数の分岐ブレーカ63と複数の電源ユニット2とが一対一に対応し、対応する分岐ブレーカ63と電源ユニット2とが、電力系統100と負荷回路7との間で、電気的に直列に接続されていることが好ましい。
In the power distribution system of the present embodiment, the plurality of branch breakers 63 and the plurality of power supply units 2 correspond one-to-one, and the corresponding branch breakers 63 and the power supply units 2 are connected between the power system 100 and the load circuit 7. It is preferable that they are electrically connected in series.
これにより、複数の分岐ブレーカ63の各々と複数の電源ユニット2の各々を接続することが容易であるので、安定化電源装置1の施工時、施工効率の向上が期待できる。
Thereby, since it is easy to connect each of the plurality of branch breakers 63 and each of the plurality of power supply units 2, it is possible to expect improvement in construction efficiency when the stabilized power supply device 1 is constructed.
本実施形態の配電システムでは、複数の分岐ブレーカ63のうちの1つと複数の電源ユニット2のうちの少なくとも2つの各々とが、電力系統100と負荷回路7との間で、電気的に直列に接続されていることが好ましい。
In the power distribution system of the present embodiment, one of the plurality of branch breakers 63 and each of at least two of the plurality of power supply units 2 are electrically connected in series between the power system 100 and the load circuit 7. It is preferable that they are connected.
これにより、本実施形態の配電システムにおいて、1つの電源ユニット2が誤作動を起こした場合でも、同じ分岐ブレーカ63を介した他の電源ユニット2を経た負荷回路7に対して影響を及ぼさない。したがって、より、信頼性の向上が期待できる。
Thereby, in the power distribution system of the present embodiment, even if one power supply unit 2 malfunctions, it does not affect the load circuit 7 that has passed through the other power supply unit 2 via the same branch breaker 63. Therefore, further improvement in reliability can be expected.
本実施形態の配電システムにおいて、安定化電源装置1は、負荷回路7の許容電流範囲を超える電流が負荷回路7に流れないように電流をグランドへ流す短絡部91を有することが好ましい。
In the power distribution system of the present embodiment, the stabilized power supply device 1 preferably has a short-circuit portion 91 that flows current to the ground so that current that exceeds the allowable current range of the load circuit 7 does not flow to the load circuit 7.
これにより、本実施形態の配電システムは、落雷等の大電流から接続する負荷回路7を保護することが可能である。
Thereby, the power distribution system of the present embodiment can protect the connected load circuit 7 from a large current such as a lightning strike.
本実施形態の配電システムにおいて、安定化電源装置1は、電力系統100の停電時に負荷回路7に電力を供給するUPS92を有することが好ましい。
In the power distribution system of the present embodiment, the stabilized power supply device 1 preferably has a UPS 92 that supplies power to the load circuit 7 at the time of a power failure of the power system 100.
これにより、本実施形態の配電システムにおいて、電力系統100が一時的な停電又は低電圧の場合でも、電力供給を遅延なく自動で継続することが可能である。したがって、負荷回路7を継続して利用することが可能である。
Thereby, in the power distribution system of the present embodiment, even when the power system 100 is temporarily out of power or low voltage, it is possible to continue power supply automatically without delay. Therefore, it is possible to use the load circuit 7 continuously.
本実施形態の配電システムにおいて、UPS92は、蓄電池93に接続されていることが好ましい。
In the power distribution system of the present embodiment, the UPS 92 is preferably connected to the storage battery 93.
これにより、本実施形態の配電システムにおいて、UPS92だけでは足りない電力を補うことが可能である。つまり、長時間の停電及び低電圧時に、負荷回路7を継続して利用することが可能である。
Thereby, in the power distribution system of the present embodiment, it is possible to compensate for power that is not sufficient with UPS 92 alone. That is, the load circuit 7 can be continuously used during a long-time power failure and low voltage.
本実施形態の配電システムにおいて、安定化電源装置1は、安定化電源装置1に入力される電力を検出する電力検出部94を有することが好ましい。
In the power distribution system of the present embodiment, the stabilized power supply 1 preferably has a power detection unit 94 that detects the power input to the stabilized power supply 1.
これにより、本実施形態の配電システムでは、電力(電圧及び電流)が表示されることで、ユーザに報知することが可能である。
Thereby, in the power distribution system of the present embodiment, it is possible to notify the user by displaying the power (voltage and current).
(実施形態2)
本実施形態の安定化電源装置1は、盤本体3が互いに電流容量、出力範囲、復帰時間のうちいずれか1つ以上が異なる2種類以上の電源ユニットから選択された、複数の電源ユニットを取付スペース31に取り付け可能に構成されている点で実施形態1と相違する。 (Embodiment 2)
The stabilizedpower supply 1 of the present embodiment is provided with a plurality of power supply units selected from two or more types of power supply units in which the panel body 3 is different from one another in current capacity, output range, and recovery time. The second embodiment is different from the first embodiment in that it can be attached to the space 31.
本実施形態の安定化電源装置1は、盤本体3が互いに電流容量、出力範囲、復帰時間のうちいずれか1つ以上が異なる2種類以上の電源ユニットから選択された、複数の電源ユニットを取付スペース31に取り付け可能に構成されている点で実施形態1と相違する。 (Embodiment 2)
The stabilized
なお、本実施形態に係る安定化電源装置1の構造は、上記を除いて、実施形態1に記載の安定化電源装置の構造と共通している。
In addition, the structure of the stabilized power supply device 1 according to the present embodiment is common to the structure of the stabilized power supply device described in the first embodiment except for the above.
図11に示すように、複数の電源ユニット2の各々において、トランス233や切替スイッチ27などの構成要素の電流容量は、電源ユニットが接続されている分岐ブレーカ63の電流容量以上であることが望ましい。例えば、分岐ブレーカの電流容量が10Aであれば、その分岐ブレーカ63に接続する電源ユニットの電流容量は10A以上であることが望ましい。以下、最も電流容量が小さい電源ユニットの構成要素の電流容量を、電源ユニットの電流容量とする。
As shown in FIG. 11, in each of the plurality of power supply units 2, the current capacity of the components such as the transformer 233 and the changeover switch 27 is preferably greater than or equal to the current capacity of the branch breaker 63 to which the power supply unit is connected. . For example, if the current capacity of the branch breaker is 10 A, the current capacity of the power supply unit connected to the branch breaker 63 is preferably 10 A or more. Hereinafter, the current capacity of the component of the power supply unit having the smallest current capacity is defined as the current capacity of the power supply unit.
本実施形態では、負荷回路7として負荷回路71,72,73,74を使用する。負荷回路71,72,73,74の定格電流は順に、1A,3A,5A,10Aである。また、複数の分岐ブレーカ63として、電流容量が異なる分岐ブレーカ631,632,633,634,635,636が分電盤6に取り付けられている。分岐ブレーカ631,632の電流容量は順に、10A,15Aである。
In this embodiment, load circuits 71, 72, 73 and 74 are used as the load circuit 7. The rated currents of the load circuits 71, 72, 73, 74 are 1A, 3A, 5A, 10A in order. In addition, branch breakers 631, 632, 633, 634, 635, and 636 having different current capacities are attached to the distribution board 6 as the plurality of branch breakers 63. The current capacities of the branch breakers 631 and 632 are 10A and 15A in order.
ここで例えば、電流容量が異なる電源ユニット201,202がラインナップされている。電源ユニット201,202の電流容量は順に、15A,20Aである。また、これらの電源ユニット201,202の各々は、電流容量以外の構成が全て同じであり、いずれも取付スペース31に取り付け可能である。
Here, for example, power supply units 201 and 202 having different current capacities are lined up. The current capacities of the power supply units 201 and 202 are 15A and 20A in this order. Each of the power supply units 201 and 202 has the same configuration except for the current capacity, and can be mounted in the mounting space 31.
本実施形態では一例として、分岐ブレーカ631に電源ユニット201が取り付けられる。分岐ブレーカ632に電源ユニット202が取り付けられる。また、電源ユニット201からは10Aの電流を取り出すことができるため、電源ユニット201には負荷回路71,72,73が接続される。電源ユニット202からは15Aの電流を取り出すことができるため、電源ユニット202には負荷回路74が接続される。
In this embodiment, as an example, the power supply unit 201 is attached to the branch breaker 631. The power supply unit 202 is attached to the branch breaker 632. Further, since a current of 10 A can be taken out from the power supply unit 201, load circuits 71, 72, and 73 are connected to the power supply unit 201. Since a current of 15 A can be extracted from the power supply unit 202, a load circuit 74 is connected to the power supply unit 202.
このように、盤本体3は、互いに電流容量が異なる2種類以上の電源ユニット201,202から選択された複数の電源ユニットを取付スペース31に取り付け可能に構成されていることが好ましい。複数の電源ユニット2の各々の電流容量がユーザにより選択可能であれば、使用する負荷回路7によって複数の分岐ブレーカ63の各々の電流容量に対応した電源ユニットを選択することができる。
Thus, it is preferable that the panel body 3 is configured so that a plurality of power supply units selected from two or more types of power supply units 201 and 202 having different current capacities can be mounted in the mounting space 31. If the current capacity of each of the plurality of power supply units 2 can be selected by the user, the power supply unit corresponding to each current capacity of the plurality of branch breakers 63 can be selected by the load circuit 7 to be used.
次に、複数の電源ユニット2の各々の出力範囲が変わると、負荷回路7で使用可能な電圧範囲が変わる。本実施形態において、複数の電源ユニット2の各々はトランス233の二次側に複数のタップ291~294を有しており、このタップ数が多くなるほど出力範囲を細かく設定できる。
Next, when the output range of each of the plurality of power supply units 2 changes, the voltage range usable in the load circuit 7 changes. In the present embodiment, each of the plurality of power supply units 2 has a plurality of taps 291 to 294 on the secondary side of the transformer 233, and the output range can be set more finely as the number of taps increases.
本実施形態では、負荷回路7としてさらに負荷回路75,76を使用する。負荷回路75は200~240Vで使用可能であり、負荷回路76は200~220Vで使用可能である。この場合、負荷回路75を使用するためには、出力範囲が200~240Vである電源ユニットを取り付ける必要がある。負荷回路76を使用するためには、出力範囲が200~220Vである電源ユニットを取り付ける必要がある。
In this embodiment, load circuits 75 and 76 are further used as the load circuit 7. The load circuit 75 can be used at 200 to 240V, and the load circuit 76 can be used at 200 to 220V. In this case, in order to use the load circuit 75, it is necessary to attach a power supply unit whose output range is 200 to 240V. In order to use the load circuit 76, it is necessary to attach a power supply unit whose output range is 200 to 220V.
ここで例えば、出力範囲の異なる電源ユニット203,204がラインナップされている。電源ユニット203,204の出力範囲は順に、200~240V,200~220Vである。また、これらの電源ユニット203,204の各々は、出力範囲以外の構成が全て同じであり、いずれも取付スペース31に取り付け可能である。
Here, for example, power supply units 203 and 204 having different output ranges are lined up. The output ranges of the power supply units 203 and 204 are 200 to 240 V and 200 to 220 V in this order. Further, each of these power supply units 203 and 204 has the same configuration except for the output range, and both can be mounted in the mounting space 31.
本実施形態では一例として、分岐ブレーカ633に電源ユニット203が取り付けられる。分岐ブレーカ634に電源ユニット204が取り付けられる。また、電源ユニット203の出力範囲は200~240Vであるため、電源ユニット203には負荷回路75が接続される。電源ユニット204の出力範囲は200~220Vであるため、電源ユニット204には負荷回路76が接続される。
In this embodiment, as an example, the power supply unit 203 is attached to the branch breaker 633. A power supply unit 204 is attached to the branch breaker 634. Further, since the output range of the power supply unit 203 is 200 to 240 V, the load circuit 75 is connected to the power supply unit 203. Since the output range of the power supply unit 204 is 200 to 220 V, a load circuit 76 is connected to the power supply unit 204.
このように、盤本体3は、互いに出力範囲が異なる2種類以上の電源ユニット203,204から選択された複数の電源ユニットを取付スペース31に取り付け可能に構成されていることが好ましい。これにより、ユーザは負荷回路7の仕様に応じて適切な出力範囲の電源ユニットを選択し取り付けることができる。
Thus, it is preferable that the panel body 3 is configured so that a plurality of power supply units selected from two or more types of power supply units 203 and 204 having different output ranges can be mounted in the mounting space 31. Thus, the user can select and install a power supply unit having an appropriate output range according to the specifications of the load circuit 7.
また、複数の電源ユニット2の各々の復帰時間が変わると、電源ユニットの出力電圧が停止された後に出力が再開されるまでの時間が変わる。すなわち、負荷回路7に接続されている負荷回路7への電力供給が遮断され、負荷回路7の電源がオフとなった後、再び負荷回路7の電源がオンとなるタイミングが変わる。例えば、モータを有する負荷回路7の電源が停電などでオフとなっても、モータが完全停止した後に電源がオンとなるような電源ユニットを用いれば、負荷回路7を正常に動作させることができる。
Also, if the return time of each of the plurality of power supply units 2 changes, the time until the output is restarted after the output voltage of the power supply unit is stopped changes. That is, after the power supply to the load circuit 7 connected to the load circuit 7 is cut off and the power supply of the load circuit 7 is turned off, the timing at which the power supply of the load circuit 7 is turned on again changes. For example, even if the power supply of the load circuit 7 having a motor is turned off due to a power failure or the like, the load circuit 7 can be operated normally by using a power supply unit that is turned on after the motor is completely stopped. .
本実施形態では、負荷回路7としてさらに負荷回路77,78を使用する。負荷回路77は停止後1分の復帰時間で正常に再起動することができる。負荷回路78は停止後3分の復帰時間で正常に再起動することができる。
In this embodiment, load circuits 77 and 78 are further used as the load circuit 7. The load circuit 77 can be normally restarted with a return time of 1 minute after stopping. The load circuit 78 can be restarted normally after a recovery time of 3 minutes after stopping.
ここで例えば、復帰時間の異なる電源ユニット205,206がラインナップされている。電源ユニット205,206の復帰時間は順に、1分,3分である。また、これらの電源ユニット205,206の各々は、復帰時間以外の構成が全て同じであり、いずれも取付スペース31に取り付け可能である。
Here, for example, power supply units 205 and 206 having different return times are lined up. The return times of the power supply units 205 and 206 are 1 minute and 3 minutes in order. Each of these power supply units 205 and 206 has the same configuration except for the return time, and both can be mounted in the mounting space 31.
本実施形態では一例として、分岐ブレーカ635に電源ユニット205が取り付けられる。分岐ブレーカ636に電源ユニット206が取り付けられる。また、電源ユニット205の復帰時間は1分であるため、電源ユニット205には負荷回路77が接続される。電源ユニット206の出力範囲は3分であるため、電源ユニット206には負荷回路78が接続される。
In this embodiment, as an example, the power supply unit 205 is attached to the branch breaker 635. A power supply unit 206 is attached to the branch breaker 636. Further, since the power supply unit 205 has a return time of 1 minute, a load circuit 77 is connected to the power supply unit 205. Since the output range of the power supply unit 206 is 3 minutes, the load circuit 78 is connected to the power supply unit 206.
このように、盤本体3は、互いに復帰時間が異なる2種類以上の電源ユニット205,206から選択された複数の電源ユニット2を取付スペース31に取り付け可能に構成されていることが好ましい。これにより、ユーザは負荷回路7の仕様に応じて適切な復帰時間の電源ユニットを選択し取り付けることができる。
Thus, it is preferable that the panel body 3 is configured so that a plurality of power supply units 2 selected from two or more types of power supply units 205 and 206 having different return times can be mounted in the mounting space 31. Thereby, the user can select and install a power supply unit having an appropriate recovery time according to the specifications of the load circuit 7.
これにより、停電時などにおいて分岐ブレーカにより電力供給が遮断され、負荷回路77,78の電源が切れた場合でも、十分な復帰時間を経ることで負荷回路77,78を正常に動作させることができる。
Thereby, even when the power supply is interrupted by the branch breaker at the time of a power failure or the like, and the power supply of the load circuits 77 and 78 is cut off, the load circuits 77 and 78 can be normally operated after a sufficient recovery time. .
(実施形態3)
本実施形態の安定化電源装置1は、盤本体3が分電盤6のキャビネット61に兼用されている点で実施形態1と相違する。なお、本実施形態に係る安定化電源装置1の構造は、上記を除いて、実施形態1に記載の安定化電源装置の構造と共通している。 (Embodiment 3)
The stabilizedpower supply device 1 of the present embodiment is different from the first embodiment in that the panel body 3 is also used as the cabinet 61 of the distribution board 6. In addition, the structure of the stabilized power supply device 1 which concerns on this embodiment is common in the structure of the stabilized power supply device described in Embodiment 1 except the above.
本実施形態の安定化電源装置1は、盤本体3が分電盤6のキャビネット61に兼用されている点で実施形態1と相違する。なお、本実施形態に係る安定化電源装置1の構造は、上記を除いて、実施形態1に記載の安定化電源装置の構造と共通している。 (Embodiment 3)
The stabilized
本実施形態の接続態様を図12に示す。本実施形態の複数の電源ユニット2は、屋内の壁に設置されている住宅用の分電盤6内に設置されている。この分電盤6は、キャビネット61と、電力系統100に接続されている主幹ブレーカ62と、複数の分岐ブレーカ63とを備えている。キャビネット61は、内部に主幹ブレーカ62、複数の分岐ブレーカ63等の各種内器を取り付けるスペースを有するだけでなく、分電スペース64をさらに有する。分電スペース64は、複数の電源ユニット2と、入力端子台4と、出力端子台5とを取り付けるためのスペースであって、実施形態1における取付スペース31に相当する。
The connection mode of this embodiment is shown in FIG. The plurality of power supply units 2 of the present embodiment are installed in a residential distribution board 6 installed on an indoor wall. The distribution board 6 includes a cabinet 61, a main breaker 62 connected to the power system 100, and a plurality of branch breakers 63. The cabinet 61 has not only a space for mounting various internal devices such as a main breaker 62 and a plurality of branch breakers 63 inside, but also a distribution space 64. The distribution space 64 is a space for mounting the plurality of power supply units 2, the input terminal block 4, and the output terminal block 5, and corresponds to the mounting space 31 in the first embodiment.
例えば、キャビネット61内部において、複数の分岐ブレーカ63は横一列に並んで取り付けられており、分岐ブレーカ63が取り付けられているスペースの下側に、分電スペース64が設けられている。この分電スペース64には上から順に、入力端子台4と、DINレールと、出力端子台5とが設けられており、分電スペース64の横幅は複数の分岐ブレーカ63を取り付けるスペースの横幅とほぼ同じである。
For example, in the cabinet 61, a plurality of branch breakers 63 are attached in a horizontal row, and a distribution space 64 is provided below the space where the branch breakers 63 are attached. The distribution space 64 is provided with an input terminal block 4, a DIN rail, and an output terminal block 5 in order from the top. The horizontal width of the distribution space 64 is the width of the space for mounting the plurality of branch breakers 63. It is almost the same.
また、複数の電源ユニット2は実施形態1と同様の構成をしており、ケース26の取付部によるDINレールへの取り付けが可能である。よって、DINレールには複数の電源ユニット2が、複数の分岐ブレーカ63に一対一に対応して取り付けられる。
Further, the plurality of power supply units 2 have the same configuration as that of the first embodiment, and can be attached to the DIN rail by the attaching portion of the case 26. Therefore, the plurality of power supply units 2 are attached to the plurality of branch breakers 63 in one-to-one correspondence on the DIN rail.
入力端子台4が有する第1の端子41は、複数の電源ユニット2の各々の入力端子21と電気的に接続されている。出力端子台5が有する第2の端子51は、複数の電源ユニット2の各々の出力端子22と電気的に接続されている。よって、実施形態1と同様に、複数の分岐ブレーカの各々に入力される入力電圧は、第1の端子41及び入力端子21を介して複数の電源ユニット2の各々に入力される。また、複数の電源ユニット2の各々から出力される出力電圧は、第2の端子51及び出力端子22を介して負荷回路7へ入力される。
The first terminal 41 of the input terminal block 4 is electrically connected to each input terminal 21 of the plurality of power supply units 2. The second terminal 51 included in the output terminal block 5 is electrically connected to each output terminal 22 of the plurality of power supply units 2. Therefore, as in the first embodiment, the input voltage input to each of the plurality of branch breakers is input to each of the plurality of power supply units 2 via the first terminal 41 and the input terminal 21. The output voltage output from each of the plurality of power supply units 2 is input to the load circuit 7 via the second terminal 51 and the output terminal 22.
本実施形態の構成によれば、安定化電源装置1の盤本体3と分電盤6のキャビネット61とを兼用することで、分電盤6は複数の電源ユニット2と入力端子台4と出力端子台5とを内蔵し、安定化電源装置1と盤本体3とは一体化される。これにより、安定化電源装置1を分電盤6とは別に設置する場合に比べて、安定化電源装置1及び分電盤6の占有スペースを縮小することができる。また、配線の取り回しもより簡素化され、容易に安定化電源装置1を設置することができる。
According to the configuration of the present embodiment, by using the panel body 3 of the stabilized power supply 1 and the cabinet 61 of the distribution board 6 together, the distribution board 6 has a plurality of power supply units 2, input terminal blocks 4, and outputs. The terminal block 5 is incorporated, and the stabilized power supply device 1 and the panel body 3 are integrated. Thereby, compared with the case where the stabilized power supply 1 is installed separately from the distribution board 6, the space occupied by the stabilized power supply 1 and the distribution board 6 can be reduced. In addition, wiring is simplified, and the stabilized power supply device 1 can be easily installed.
なお、本実施形態の構成は、実施形態2と併用可能である。
Note that the configuration of the present embodiment can be used in combination with the second embodiment.
(実施形態4)
本実施形態の配電システムは、供給期間において、分散電源8によって生成される電力が供給される配電路が異なる点で実施形態1と相違する。なお、本実施形態の配電システムの構成は、実施形態2及び3と併用可能である。また、実施形態1と重複する構成については同じ符号を付し、詳しい説明は省略する。 (Embodiment 4)
The power distribution system of the present embodiment is different from that of the first embodiment in that the power distribution path to which the power generated by the distributedpower supply 8 is supplied is different in the supply period. In addition, the structure of the power distribution system of this embodiment can be used together with Embodiment 2 and 3. Moreover, the same code | symbol is attached | subjected about the structure which overlaps with Embodiment 1, and detailed description is abbreviate | omitted.
本実施形態の配電システムは、供給期間において、分散電源8によって生成される電力が供給される配電路が異なる点で実施形態1と相違する。なお、本実施形態の配電システムの構成は、実施形態2及び3と併用可能である。また、実施形態1と重複する構成については同じ符号を付し、詳しい説明は省略する。 (Embodiment 4)
The power distribution system of the present embodiment is different from that of the first embodiment in that the power distribution path to which the power generated by the distributed
本実施形態の配電システムについて、図13を参照して説明する。配電路104は、実施形態1の配電路102に代えて適用される。配電路104は、パワコン81の出力と安定化電源装置1の第1の端子41(図1参照)とを接続する。
The power distribution system of this embodiment will be described with reference to FIG. The power distribution path 104 is applied instead of the power distribution path 102 of the first embodiment. The power distribution path 104 connects the output of the power conditioner 81 and the first terminal 41 (see FIG. 1) of the stabilized power supply device 1.
供給期間においては、分散電源8で生成される電力は、配電路104を介して安定化電源装置1の第1の端子41に入力される。電力系統100からの電力は分電盤6を経て、配電路101を介して、電源ユニット2の第1の端子41に入力される。安定化電源装置1の第2の端子51から出力されたこれらの電力は、負荷回路7に供給される。
During the supply period, the electric power generated by the distributed power supply 8 is input to the first terminal 41 of the stabilized power supply device 1 through the power distribution path 104. The electric power from the electric power system 100 is input to the first terminal 41 of the power supply unit 2 through the distribution board 6 and the distribution path 101. These electric powers output from the second terminal 51 of the stabilized power supply device 1 are supplied to the load circuit 7.
これにより、本実施形態の配電システムにおいて、分電盤6にパワコン81の出力からの電力を入力するための入力部が存在しない場合でも、分散電源8からの電力を安定化させて負荷回路7に供給することが可能である。
Thereby, in the power distribution system of the present embodiment, even when there is no input unit for inputting power from the output of the power converter 81 to the distribution board 6, the power from the distributed power supply 8 is stabilized and the load circuit 7 is stabilized. Can be supplied.
(実施形態5)
本実施形態の配電システムは、分散電源8によって生成される電力が供給される配電路が異なる点で実施形態1と相違する。なお、本実施形態の配電システムの構成は、実施形態2及び3と併用可能である。また、実施形態1乃至4と重複する構成については同じ符号を付し、詳しい説明は省略する。 (Embodiment 5)
The power distribution system of the present embodiment is different from that of the first embodiment in that the power distribution path to which power generated by the distributedpower supply 8 is supplied is different. In addition, the structure of the power distribution system of this embodiment can be used together with Embodiment 2 and 3. Further, the same components as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.
本実施形態の配電システムは、分散電源8によって生成される電力が供給される配電路が異なる点で実施形態1と相違する。なお、本実施形態の配電システムの構成は、実施形態2及び3と併用可能である。また、実施形態1乃至4と重複する構成については同じ符号を付し、詳しい説明は省略する。 (Embodiment 5)
The power distribution system of the present embodiment is different from that of the first embodiment in that the power distribution path to which power generated by the distributed
本実施形態の配電システムについて、図14及び図15を参照して説明する。
The power distribution system of this embodiment will be described with reference to FIGS. 14 and 15.
以下では、電源ユニット2として電源ユニット201~207を使用する。分岐ブレーカ63として、分岐ブレーカ631~636を使用する。本実施形態において、分岐ブレーカ636は、2つの電源ユニット206,207と電気的に接続されている。電源ユニット206は、分電盤6のキャビネット61と安定化電源装置1の盤本体3との間で、電源ユニット207に電気的に接続されている。
In the following, the power supply units 201 to 207 are used as the power supply unit 2. As the branch breaker 63, branch breakers 631 to 636 are used. In the present embodiment, the branch breaker 636 is electrically connected to the two power supply units 206 and 207. The power supply unit 206 is electrically connected to the power supply unit 207 between the cabinet 61 of the distribution board 6 and the panel body 3 of the stabilized power supply 1.
配電路105,106について、図14を参照して説明する。配電路105は、実施形態1の配電路102に代えて適用される。配電路106は、実施形態1の配電路103に代えて適用される。
The distribution paths 105 and 106 will be described with reference to FIG. The power distribution path 105 is applied instead of the power distribution path 102 of the first embodiment. The power distribution path 106 is applied instead of the power distribution path 103 of the first embodiment.
配電路105は、パワコン81の出力と、電源ユニット207に接続される第2の端子51とを接続する。配電路106は、パワコン81の出力と、電源ユニット206に接続される第2の端子51とを接続する。
The distribution path 105 connects the output of the power conditioner 81 and the second terminal 51 connected to the power supply unit 207. The power distribution path 106 connects the output of the power conditioner 81 and the second terminal 51 connected to the power supply unit 206.
供給期間においては、分散電源8で生成される電力は、配電路105を介して電源ユニット207に接続される第2の端子51に入力される。電源ユニット207に接続される第2の端子51から入力される電力は、電源ユニット207の回路ブロック20を介して電源ユニット207に接続される第1の端子41から出力される。電源ユニット207と電源ユニット206は並列接続されているので、電源ユニット207に接続される第1の端子41から出力される電力は、電源ユニット206に接続される第1の端子41に入力される。電力系統100からの電力は分電盤6の分岐ブレーカ636を経て電源ユニット206に供給される。電源ユニット206に接続される第2の端子51から出力される電力は、負荷回路7に供給される。
During the supply period, the power generated by the distributed power supply 8 is input to the second terminal 51 connected to the power supply unit 207 via the power distribution path 105. The power input from the second terminal 51 connected to the power supply unit 207 is output from the first terminal 41 connected to the power supply unit 207 via the circuit block 20 of the power supply unit 207. Since the power supply unit 207 and the power supply unit 206 are connected in parallel, the power output from the first terminal 41 connected to the power supply unit 207 is input to the first terminal 41 connected to the power supply unit 206. . Power from the power system 100 is supplied to the power supply unit 206 through the branch breaker 636 of the distribution board 6. The power output from the second terminal 51 connected to the power supply unit 206 is supplied to the load circuit 7.
遮断期間においては、分散電源8で生成される電力は、配電路106を介して安定化電源装置1の電源ユニット206に接続される第2の端子51に入力される。ここで、電力系統100からの電力は、電源ユニット206の遮断部24によって、負荷回路7への供給が遮断される。ただし、分散電源8によって生成される電力は、電源ユニット206の回路ブロック20を通らないので、遮断部24によって遮断されることなく負荷回路7に供給される。
During the interruption period, the power generated by the distributed power supply 8 is input to the second terminal 51 connected to the power supply unit 206 of the stabilized power supply device 1 through the power distribution path 106. Here, the power from the power system 100 is blocked from being supplied to the load circuit 7 by the blocking unit 24 of the power supply unit 206. However, since the power generated by the distributed power supply 8 does not pass through the circuit block 20 of the power supply unit 206, the power is supplied to the load circuit 7 without being cut off by the cut-off unit 24.
停電期間においては、分散電源8によって生成される電力は、配電路106を介して、電源ユニット206に接続される第2の端子51に入力されて、負荷回路7に供給される。したがって、電力系統100からの電力が供給されない場合でも、負荷回路7を利用することが可能である。
During the power failure period, the power generated by the distributed power supply 8 is input to the second terminal 51 connected to the power supply unit 206 via the power distribution path 106 and supplied to the load circuit 7. Therefore, the load circuit 7 can be used even when power from the power system 100 is not supplied.
このように、供給期間、本実施形態の配電システムにおいて、分散電源8によって生成される電力は、電源ユニット2に入力されることによって、電圧が基準電圧範囲となるように安定化されるので、より信頼性のある配電システムを構築することが可能である。
As described above, in the power distribution system of the present embodiment, the power generated by the distributed power supply 8 is input to the power supply unit 2 and stabilized so that the voltage falls within the reference voltage range. It is possible to build a more reliable power distribution system.
Claims (19)
- 複数の分岐ブレーカに対応して設けられ、入力端子に入力される入力電圧の大きさを所定の出力範囲に収まるように調節する調節部を有し、前記調節部で調節した電圧を出力端子から出力電圧として出力する複数の電源ユニットと、
前記複数の電源ユニットを取り付ける取付スペースを有する盤本体とを備えている
ことを特徴とする安定化電源装置。 Provided corresponding to a plurality of branch breakers, and having an adjustment unit that adjusts the magnitude of the input voltage input to the input terminal so as to be within a predetermined output range, the voltage adjusted by the adjustment unit from the output terminal A plurality of power supply units that output as output voltages;
And a board body having a mounting space for mounting the plurality of power supply units. - 入力端子台と、出力端子台とをさらに備え、
前記入力端子台は、前記複数の電源ユニットに一対一に対応し、各々が、対応する電源ユニットの前記入力端子と電気的に接続される複数の第1の端子を有し、
前記出力端子台は、前記複数の電源ユニットに一対一に対応し、各々が、対応する電源ユニットの前記出力端子と電気的に接続される複数の第2の端子を有する
ことを特徴とする請求項1に記載の安定化電源装置。 An input terminal block and an output terminal block;
The input terminal block has a plurality of first terminals that correspond one-to-one to the plurality of power supply units, each of which is electrically connected to the input terminal of the corresponding power supply unit,
The output terminal block corresponds to the plurality of power supply units on a one-to-one basis, and each of the output terminal blocks includes a plurality of second terminals that are electrically connected to the output terminals of the corresponding power supply units. Item 2. The stabilized power supply device according to Item 1. - 前記盤本体は、互いに電流容量が異なる2種類以上の電源ユニットから選択された前記複数の電源ユニットを前記取付スペースに取り付け可能に構成されている
ことを特徴とする請求項1又は2に記載の安定化電源装置。 The said panel main body is comprised so that attachment of these several power supply units selected from two or more types of power supply units from which a current capacity mutually differs is possible in the said attachment space. Stabilized power supply. - 前記盤本体は、互いに前記出力範囲が異なる2種類以上の電源ユニットから選択された前記複数の電源ユニットを前記取付スペースに取り付け可能に構成されている
ことを特徴とする請求項1乃至3のいずれか一項に記載の安定化電源装置。 The said panel main body is comprised so that the said several power supply unit selected from two or more types of power supply units from which the said output range mutually differs can be attached to the said attachment space. Any one of Claim 1 thru | or 3 characterized by the above-mentioned. The stabilized power supply device according to claim 1. - 前記複数の電源ユニットの各々は、前記入力端子と前記出力端子との間に前記調節部が電気的に接続されている第1の接続状態と、前記入力端子が前記出力端子に直接接続されている第2の接続状態と、前記入力端子が前記出力端子から電気的に切り離されている第3の接続状態とのうち少なくとも2つの接続状態を切り替える切替スイッチを有する
ことを特徴とする請求項1乃至4のいずれか一項に記載の安定化電源装置。 Each of the plurality of power supply units includes a first connection state in which the adjustment unit is electrically connected between the input terminal and the output terminal, and the input terminal is directly connected to the output terminal. 2. A switch for switching at least two connection states between a second connection state in which the input terminal is electrically disconnected from the output terminal and a third connection state in which the input terminal is electrically disconnected from the output terminal. The stabilized power supply device as described in any one of thru | or 4. - 前記複数の電源ユニットの各々は、前記出力端子を複数有する
ことを特徴とする請求項1乃至5のいずれか一項に記載の安定化電源装置。 Each of the plurality of power supply units has a plurality of the output terminals. The stabilized power supply device according to any one of claims 1 to 5. - 前記盤本体は、分電盤のキャビネットに兼用されている
ことを特徴とする請求項1乃至6のいずれか一項に記載の安定化電源装置。 The stabilized power supply device according to any one of claims 1 to 6, wherein the panel body is also used as a cabinet of a distribution board. - 前記複数の電源ユニットの各々は、前記出力電圧の出力を停止する遮断部を有する
ことを特徴とする請求項1乃至7のいずれか一項に記載の安定化電源装置。 8. The stabilized power supply device according to claim 1, wherein each of the plurality of power supply units includes a cutoff unit that stops the output of the output voltage. 9. - 前記複数の電源ユニットの各々は、前記出力電圧の出力の停止後、所定の復帰時間が経過すると前記出力電圧の出力の再開を行う復帰部を有する
ことを特徴とする請求項8に記載の安定化電源装置。 9. The stable unit according to claim 8, wherein each of the plurality of power supply units includes a return unit that restarts output of the output voltage when a predetermined return time elapses after output of the output voltage is stopped. Power supply. - 前記盤本体は、互いに前記復帰時間が異なる2種類以上の電源ユニットから選択された前記複数の電源ユニットを前記取付スペースに取り付け可能に構成されている
ことを特徴とする請求項9に記載の安定化電源装置。 10. The stable according to claim 9, wherein the panel body is configured to be capable of mounting the plurality of power supply units selected from two or more types of power supply units having different return times from each other in the mounting space. Power supply. - 前記複数の電源ユニットの各々は、前記復帰時間を設定可能な設定部を有する
ことを特徴とする請求項9に記載の安定化電源装置。 The stabilized power supply according to claim 9, wherein each of the plurality of power supply units includes a setting unit capable of setting the return time. - 電力系統から供給される電力を分岐して供給することが可能な分電盤と、
請求項1乃至11のいずれか一項に記載の安定化電源装置と、
前記分電盤及び前記安定化電源装置の少なくとも一方に電気的に接続されている分散電源とを備え、
前記分散電源は、負荷回路との間の電力供給路に前記複数の電源ユニットのうち少なくとも1つの電源ユニットを含むように接続されていることを特徴とする配電システム。 A distribution board capable of branching and supplying power supplied from the power system;
The stabilized power supply device according to any one of claims 1 to 11,
A distributed power source electrically connected to at least one of the distribution board and the stabilized power supply device,
The distributed power supply system is connected to a power supply path to a load circuit so as to include at least one power supply unit among the plurality of power supply units. - 前記分散電源の自立運転によって生成される電力を前記安定化電源装置に供給する配線が設けられていることを特徴とする請求項12に記載の配電システム。 The power distribution system according to claim 12, further comprising a wiring for supplying electric power generated by the independent operation of the distributed power source to the stabilized power source device.
- 前記複数の分岐ブレーカと前記複数の電源ユニットとが一対一に対応し、対応する分岐ブレーカと電源ユニットとが、前記電力系統と前記負荷回路との間で、電気的に直列に接続されていることを特徴とする請求項12又は13に記載の配電システム。 The plurality of branch breakers and the plurality of power supply units correspond one-to-one, and the corresponding branch breakers and the power supply units are electrically connected in series between the power system and the load circuit. The power distribution system according to claim 12 or 13, characterized by the above.
- 前記複数の分岐ブレーカのうちの1つと前記複数の電源ユニットのうちの少なくとも2つの各々とが、前記電力系統と前記負荷回路との間で、電気的に直列に接続されていることを特徴とする請求項12又は13に記載の配電システム。 One of the plurality of branch breakers and each of at least two of the plurality of power supply units are electrically connected in series between the power system and the load circuit. The power distribution system according to claim 12 or 13.
- 前記安定化電源装置は、前記負荷回路の許容電流範囲を超える電流が前記負荷回路に流れないように前記電流をグランドへ流す短絡部を有することを特徴とする請求項12乃至15のいずれか一項に記載の配電システム。 16. The stabilized power supply device according to claim 12, further comprising a short-circuit portion that allows the current to flow to the ground so that current exceeding an allowable current range of the load circuit does not flow to the load circuit. Power distribution system according to item.
- 前記安定化電源装置は、前記電力系統の停電時に前記負荷回路に電力を供給する無停電電源装置を有することを特徴とする請求項12乃至16のいずれか一項に記載の配電システム。 The power distribution system according to any one of claims 12 to 16, wherein the stabilized power supply device includes an uninterruptible power supply device that supplies power to the load circuit at the time of a power failure of the power system.
- 前記無停電電源装置は、蓄電池に電気的に接続されていることを特徴とする請求項17に記載の配電システム。 The power distribution system according to claim 17, wherein the uninterruptible power supply is electrically connected to a storage battery.
- 前記安定化電源装置は、前記安定化電源装置に入力される電力を検出する電力検出部を有することを特徴とする請求項12乃至18のいずれか一項に記載の配電システム。 The power distribution system according to any one of claims 12 to 18, wherein the stabilized power supply device includes a power detection unit that detects power input to the stabilized power supply device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016527499A JP6839814B2 (en) | 2014-06-11 | 2014-09-12 | Regulated power supply and power distribution system using it |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-120910 | 2014-06-11 | ||
JP2014120910 | 2014-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015189879A1 true WO2015189879A1 (en) | 2015-12-17 |
Family
ID=54833013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/004737 WO2015189879A1 (en) | 2014-06-11 | 2014-09-12 | Stabilized power source device and power distribution system using same |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6839814B2 (en) |
WO (1) | WO2015189879A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008043000A (en) * | 2006-08-02 | 2008-02-21 | Matsushita Electric Works Ltd | Dc power distribution system |
JP2009159691A (en) * | 2007-12-25 | 2009-07-16 | Panasonic Electric Works Co Ltd | Power supply system |
JP2013034276A (en) * | 2011-08-01 | 2013-02-14 | Mitsubishi Electric Corp | Electric power unit and nuclear reactor control rod control apparatus using the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD108607A1 (en) * | 1973-12-07 | 1974-09-20 | ||
JP3533982B2 (en) * | 1998-07-10 | 2004-06-07 | 富士電機ホールディングス株式会社 | Power converter |
JP2003328472A (en) * | 2002-05-10 | 2003-11-19 | Akio Tamura | Building equipped with ac-dc converter |
JP2004030089A (en) * | 2002-06-25 | 2004-01-29 | Kyoto Denkiki Kk | Alternating-current voltage adjusting device |
JP4320200B2 (en) * | 2003-04-08 | 2009-08-26 | 積水化学工業株式会社 | Apartment house and its operation method |
JP2006187102A (en) * | 2004-12-27 | 2006-07-13 | Ntt Data Ex Techno Corp | Alternating-current voltage control device |
JP5297981B2 (en) * | 2009-11-06 | 2013-09-25 | パナソニック株式会社 | Distribution board and distribution system |
JP5473067B2 (en) * | 2010-05-17 | 2014-04-16 | 日東工業株式会社 | Distribution board |
-
2014
- 2014-09-12 WO PCT/JP2014/004737 patent/WO2015189879A1/en active Application Filing
- 2014-09-12 JP JP2016527499A patent/JP6839814B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008043000A (en) * | 2006-08-02 | 2008-02-21 | Matsushita Electric Works Ltd | Dc power distribution system |
JP2009159691A (en) * | 2007-12-25 | 2009-07-16 | Panasonic Electric Works Co Ltd | Power supply system |
JP2013034276A (en) * | 2011-08-01 | 2013-02-14 | Mitsubishi Electric Corp | Electric power unit and nuclear reactor control rod control apparatus using the same |
Also Published As
Publication number | Publication date |
---|---|
JPWO2015189879A1 (en) | 2017-04-20 |
JP6839814B2 (en) | 2021-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10523027B2 (en) | Power supply apparatus and power supply method | |
US20180054064A1 (en) | Smart main electrical panel for energy generation systems | |
US11316471B2 (en) | Manual transfer switch for onsite energy generation and storage systems | |
US20120299383A1 (en) | Power distribution system | |
US10424933B2 (en) | Automatic smart transfer switch for energy generation systems | |
KR102229278B1 (en) | Solar power system capable of grouping management and circuit breaker dualization | |
US7855871B2 (en) | Generator ready load center | |
JP2011010393A (en) | Apparatus for protecting direct current branch circuit | |
JP2008148505A (en) | Power compensator to prevent overload | |
KR20140108704A (en) | Power supply switching device and switch board | |
US20030117761A1 (en) | Integrated high voltage transient surge suppression with automatic transfer switch for alternate source of electricity | |
US10778002B2 (en) | Service panel circuit for automatic AC and DC power distribution | |
CN105826063A (en) | Contactless on-load automatic positive and negative voltage regulating tap switch device for three-phase distribution transformer | |
JP5820969B2 (en) | Power distribution system | |
WO2013149113A1 (en) | System, method, and apparatus for powering equipment during a low voltage event | |
US10615633B2 (en) | Power installation with UPS | |
WO2016156309A1 (en) | Energy supply system with power meter and selective load shedding | |
JP5368915B2 (en) | Relay and power supply system | |
JP5565932B2 (en) | Power distribution system | |
JP5877352B2 (en) | Power distribution system | |
WO2015189879A1 (en) | Stabilized power source device and power distribution system using same | |
KR102009919B1 (en) | Energy storage system | |
ES2969704T3 (en) | Power conditioner, power system and reactive power suppression method for power system | |
JP2015053842A (en) | Connecting device for dispersed power source | |
KR102158313B1 (en) | Power transformer |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14894284 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016527499 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 14894284 Country of ref document: EP Kind code of ref document: A1 |