WO2018123494A1 - Dispositif d'alimentation électrique, procédé de commande de dispositif d'alimentation électrique, système d'alimentation électrique et système de sauvegarde de station de base de communication - Google Patents

Dispositif d'alimentation électrique, procédé de commande de dispositif d'alimentation électrique, système d'alimentation électrique et système de sauvegarde de station de base de communication Download PDF

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Publication number
WO2018123494A1
WO2018123494A1 PCT/JP2017/043915 JP2017043915W WO2018123494A1 WO 2018123494 A1 WO2018123494 A1 WO 2018123494A1 JP 2017043915 W JP2017043915 W JP 2017043915W WO 2018123494 A1 WO2018123494 A1 WO 2018123494A1
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WO
WIPO (PCT)
Prior art keywords
power
power supply
switch
storage battery
signal
Prior art date
Application number
PCT/JP2017/043915
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English (en)
Japanese (ja)
Inventor
新太郎 蒲
眞己 樋口
Original Assignee
株式会社Ｇｓユアサ
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Publication date
Application filed by 株式会社Ｇｓユアサ filed Critical 株式会社Ｇｓユアサ
Priority to AU2017386331A priority Critical patent/AU2017386331A1/en
Publication of WO2018123494A1 publication Critical patent/WO2018123494A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/08—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems requiring starting of a prime-mover
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a power supply device, a control method for the power supply device, a power supply system, and a communication base station backup system.
  • a power supply system including a lead storage battery is known (see, for example, Patent Document 1).
  • a lead storage battery is charged by a commercial power supply, and when the commercial power supply fails, the lead storage battery discharges the load equipment.
  • the problem of the present invention is to improve the stability and durability of the power supply system.
  • a power supply device that is attached to a device that supplies power from a power source to a load
  • the power supply device including a switching unit and a power storage device, wherein the switching unit is electrically connected to the device.
  • An input terminal connectable to the load, an output terminal electrically connectable to the load, a first line for supplying the power input from the input terminal to the output terminal, and the first line.
  • the connection portion to the output terminal is electrically connected, and the power failure is not detected.
  • the power storage device includes a power storage unit including a power storage element, and the connection unit is connected to the connection unit.
  • the second switch has an off function that turns off when at least one of the control signal and the external input signal is a signal that turns off the second switch, and both the control signal and the external input signal
  • a power supply device having at least one of an on function that is turned on in the case of a signal that turns on a second switch.
  • mode of this invention has a 1st storage battery, is connected with said 1st power supply apparatus while having a 1st electric power supply apparatus which supplies the electric power from a power supply to load, and a 2nd storage battery,
  • a second power supply device that supplies power from the power source to a load, and the first power supply device includes a first switch and a switching unit having an output terminal that can be electrically connected to the load;
  • An off function that turns off when at least one of the supplied external input signals is a signal that turns off the second switch, and both the control signal and the external input signal turn on the second switch.
  • the power supply system may be a communication base station backup system using a lithium ion battery as the first storage battery and a lead storage battery as the second storage battery.
  • the stability and durability of the entire power supply system can be improved by attaching the power supply device to a device (for example, an existing device including a lead storage battery).
  • a device for example, an existing device including a lead storage battery.
  • FIG. 10A It is a block diagram which shows the function structure of a control apparatus. It is a flowchart which shows operation
  • FIG. 1 is a perspective view showing a schematic configuration of a second power supply apparatus 200 as an existing apparatus.
  • the second power supply apparatus 200 includes a rack 210 such as a 19-inch rack, for example, and a main component 205 is mounted in the rack 210.
  • a door 211 is attached to the front surface of the rack 210. The door 211 is closed during normal operation, and the door 211 is opened during maintenance. The door 211 may not be provided on the rack 210.
  • a first storage unit 201 in which the main component 205 of the second power supply device 200 is stored, and a second storage unit 202 in which the first power supply device is stored.
  • FIG. 1 illustration of internal structures of the first storage unit 201 and the second storage unit 202 is omitted.
  • the second storage unit 202 may be provided in the rack 210 in advance as a storage unit dedicated to the first power supply device, or a space in the rack 210 may be used as the second storage unit 202 as necessary.
  • a space may be opened by organizing the inside of the rack 210, and the space may be used as the second storage unit 202.
  • the second storage unit 202 may be provided in a rack different from the rack 210.
  • FIG. 2 is a perspective view showing a schematic configuration of the first power supply apparatus 100.
  • the first power supply device 100 includes a switching unit 700 and the power storage device 1.
  • the switching unit 700 includes a substantially rectangular parallelepiped exterior body 101 and is unitized by storing main components in the exterior body 101. “Unitization” means that components are connected to form an assembly.
  • the power storage device 1 is arranged under the switching unit 700.
  • the power storage device 1 is unitized by housing main components such as a first storage battery, a control unit, and a switch, which will be described later, in an exterior body 101.
  • the first power supply device 100 having the switching unit 700 and the power storage device 1 is added to the existing second power supply device 200, for example, so that the electric capacity, stability, and durability of the entire power supply system are increased. Increase sex.
  • a pair of handles 102 for attaching / detaching the exterior body 101 to / from the rack 210 are provided on the front surface of the exterior body 101 of the switching unit 700.
  • the power storage device 1 may also have a handle.
  • a terminal group 110 for electrically connecting the main components of the first power supply device 100 and the main components 205 of the second power supply device 200. Is provided.
  • a storage battery terminal 119 is provided on the front surface of the exterior body 101 in the vicinity of the terminal group 110, which is electrically connected to a first line described later.
  • the storage battery terminal 119 is electrically connected to the terminals 150 a and 150 b of the first storage battery via the wiring member 604.
  • the storage battery terminal 119 functions as a connection portion described later.
  • FIG. 3 is a block diagram illustrating an outline of a control configuration of the second power supply apparatus 200.
  • FIG. 3 shows a state before the first power supply device 100 is attached.
  • the second power supply device 200 includes a second AC / DC converter 230, a second storage battery 240, and terminals 250 and 251.
  • the second AC / DC converter 230 is electrically connected to a switching unit 220 outside the second power supply apparatus 200 via a terminal 251.
  • the switching unit 220 is a circuit that switches AC power supplied from each of the commercial power supply 300 and the generator 400 and outputs it downstream.
  • the second AC / DC converter 230 is a converter that converts alternating current into direct current, and converts alternating current power supplied via the switching unit 220 into second direct current power.
  • the second AC / DC converter 230 supplies the converted second DC power to the second storage battery 240 and the load 500.
  • the second storage battery 240 is a storage battery such as a lead storage battery, for example.
  • the second storage battery 240 stores power using the supplied second DC power, and supplies DC power to the load 500 via the terminal 250 by discharging.
  • FIG. 4 is a block diagram showing an outline of a control configuration of the second power supply apparatus 200 to which the first power supply apparatus 100 is attached.
  • the switching unit 700 includes a DC input terminal 111, an AC input terminal 112, an output terminal 113, a first line 130, and a second line 120.
  • the second line 120 is a power system for supplying the second DC power input from the DC input terminal 111 to the output terminal 113.
  • a second diode 122 is provided in the second line 120.
  • the second line 120 is preferably arranged in the exterior body 101 of the switching unit 700.
  • the first line 130 is a power system for converting AC power input from the AC input terminal 112 into first DC power and supplying it to the output terminal 113.
  • the connection point between the first line 130 and the second line 120 is preferably disposed in the exterior body 101 of the switching unit 700.
  • the first line 130 is provided with a power failure detection unit 160, a delay unit 170, a first AC / DC converter 133, a switch 145, and a first diode 134.
  • a power failure detection unit 160 and the delay unit 170 are provided in the first line 130.
  • the power failure detection unit 160 and the delay unit 170 are provided in a separate system from the first line 130. Also good.
  • the first AC / DC converter 133 may be disposed outside the exterior body 101 of the switching unit 700. That is, the first AC / DC converter 133 may be provided separately from the switching unit 700, and may be provided between the terminal 251 and the AC input terminal 112, for example.
  • a control unit is provided in the power storage device described later, and functions such as automatic recovery of the power storage device when the commercial power supply 300 recovers from a power failure are realized by the control unit of the power storage device.
  • the power failure detection unit 160 is connected between the AC input terminal 112 in the first line 130 and the switch 145.
  • the power failure detection unit 160 is a power failure detector that does not output a signal when there is a power failure and continues to output a signal when there is no power failure. Specifically, the power failure detection unit 160 continues to output a signal to the delay unit 170 when there is a voltage between the AC input terminal 112 and the first AC / DC converter 133, and when the voltage disappears (power failure) At this time, no signal is output to the delay unit 170.
  • the power failure detection unit 160 may be connected between the terminal 251 and the switch 145. In this case, the power failure detection unit 160 outputs a signal to the delay unit 170 when there is a voltage at the terminal 251.
  • the delay unit 170 is a delay circuit that switches conduction or interruption by the switch 145 with a delay from the timing at which a power failure is detected. That is, the delay unit 170 switches ON / OFF of the switch 145 with a delay from the signal switching timing in the power failure detection unit 160. Specifically, the delay unit 170 outputs the signal to the switch 145 when the signal is input from the power failure detection unit 160, and outputs the signal to the switch 145 when the signal is not input. Do not output. The switch 145 is turned on / off depending on the presence or absence of this signal.
  • the timing for switching the presence / absence of a signal is delayed by a predetermined time from the timing at which the presence / absence of the signal is actually switched in the power failure detection unit 160. That is, in the state where the presence or absence of the signal from the power failure detection unit 160 is stable, the presence or absence of the signal for the switch 145 is switched in the delay unit 170.
  • the switch 145 (first switch) is a switch for switching ON / OFF the power of the first line 130 based on the presence / absence of a signal from the delay unit 170. Specifically, the switch 145 is provided between the connection part 180 in the first line 130 and the first diode 134. The switch 145 is turned off when a signal is input from the delay unit 170 and turns off the power of the first line 130. On the other hand, the switch 145 is turned on when the signal from the delay unit 170 is not input (power failure), and the power of the first line 130 is turned on.
  • the switch 145 electrically connects the connection unit 180 to the output terminal 113 when the power failure detection unit 160 detects a power failure, and when the power failure detection unit 160 does not detect the power failure, The electrical continuity from the connection unit 180 to the output terminal 113 is interrupted.
  • the switch 145 electrically connects the connection unit 180 to the output terminal 113 when a power failure of the commercial power supply 300 is detected, and when the power failure of the commercial power supply 300 is not detected, The electrical continuity from the connection unit 180 to the output terminal 113 is interrupted.
  • DC power from the first storage battery 150 is supplied to the load 500 during a power failure.
  • the first storage battery 150 may be a lithium ion battery.
  • the charging voltage of the first storage battery 150 is set higher than the charging voltage of the second storage battery 240.
  • the discharge end voltage of the first storage battery 150 is set higher than the discharge end voltage of the second storage battery 240.
  • the charge voltage of the first storage battery 150 is 56.7 V
  • the discharge end voltage is 46.2 V
  • the charge voltage of the second storage battery 240 is 54.0
  • the discharge end voltage is 43.2 V.
  • FIG. 5 is a flowchart showing the flow of the control method of the first power supply apparatus 100.
  • FIG. 6 is a timing chart showing the load voltage change and the ON / OFF switching timing of each part when the control method of FIG. 5 is executed.
  • the switching unit 220 of the existing second power supply apparatus 200 switches the power supply source for the first power supply apparatus 100 from the commercial power supply 300 to the generator 400 when the commercial power supply 300 has a power failure is illustrated. To do.
  • the power failure detection unit 160 continues to output a signal, so that the delay unit 170 also turns off the switch 145 based on the signal. It continues (S201). This is the “power supply by commercial power supply” period shown in FIG.
  • a part of the AC power supplied from the commercial power source 300 is converted into second DC power by the second AC / DC converter 230, and the second line 120 is connected via the terminal 250 and the DC input terminal 111. To be supplied. Thereby, a part of the AC power is supplied to the load 500. At this time, since the second DC power is also supplied to the second storage battery 240, the second storage battery 240 is charged.
  • this step S201 supplies power to the load 500 via the second line 120 when the second line 120, which is a line different from the first line 130, receives AC power from the commercial power supply 300. This is the first step.
  • step S202 when the signal output from the power failure detection unit 160 is continued (step S202; NO), the state is maintained.
  • the switch 145 is switched from OFF to ON (step S203).
  • step S203 the delay unit 170 delays the signal switching timing in the power failure detection unit 160 and switches the switch 145 from OFF to ON (see FIG. 6).
  • step S204 the switch 145 is turned on, and the first storage battery 150 is discharged (S204).
  • the first state is a state in which DC power from the first storage battery 150 is supplied to the load 500.
  • the steps S203 and S204 are the second for supplying power to the load 500 from the first storage battery 150 connected to the first line 130 without interrupting the power supply to the load 500. It is a step.
  • step S205 when the first storage battery 150 has a voltage different from that of the second storage battery 240 (step S205; NO), the first state is continued.
  • step S205; YES both the first storage battery 150 and the second storage battery 240 are discharged (step S206). That is, when the voltage supplied to the load 500 becomes equal to or lower than the first voltage value, power supply from the second storage battery 240 is started. Thereby, DC power flows from the first storage battery 150 to the first line 130, DC power flows from the second storage battery 240 to the second line 120, and DC power is supplied to the load 500.
  • This is the “power supply by the first storage battery and the second storage battery” period shown in FIG. 6. During this period, the first storage battery 150 and the second storage battery 240 simultaneously supply power to the load 500.
  • step S207 when the first storage battery 150 is not equal to or lower than the discharge end voltage (predetermined value) (step S207; NO), the simultaneous power feeding state is continued.
  • step S207; YES When the first storage battery 150 becomes equal to or lower than the discharge end voltage (step S207; YES), the discharge of the first storage battery 150 is stopped, and DC power is supplied to the load 500 only from the second storage battery 240 (step S207). S208).
  • these steps S207 and S208 are performed without switching between the first line 130 and the second line 120 when the voltage of the first storage battery 150 becomes equal to or lower than the second voltage value smaller than the first voltage value. Only the power supply of the storage battery 240 is used.
  • the power failure detection unit 160 outputs a signal to the delay unit 170 (step S209).
  • a signal is also output to the switch 145 via the delay unit 170, so that the switch 145 is turned OFF and the process proceeds to step S202.
  • This is the “power recovery” period shown in FIG. Note that the power recovery period here includes power recovery of the commercial power supply 300.
  • the switching unit 700 can be easily retrofitted to the second power supply apparatus 200. Can be attached. Therefore, another power system can be easily added to the second power supply apparatus 200. Moreover, since the connection part 180 to which the 1st storage battery 150 is connected is provided in the 1st line 130 of the switching unit 700, if the 1st storage battery 150 is connected with this connection part 180, it will be 2nd electric power. It is also possible to add the first storage battery 150 to the supply device 200.
  • the second storage battery (lead storage battery) 240 of the second power supply apparatus 200 which is an existing apparatus, is a battery having a relatively large capacity so that it can cope with a backup during a long-time power failure.
  • the battery capacity of the first storage battery (lithium ion battery) 150 is set for backup when the commercial power supply 300 is in a short power failure. For this reason, the capacity of the first storage battery 150 is smaller than the capacity of the second storage battery 240. In the case of the same capacity between the lithium ion battery and the lead storage battery, the lithium ion battery is smaller and lighter. Also, the smaller the battery capacity, the smaller and lighter.
  • the volume which the 1st storage battery 150 occupies can be made small compared with the 2nd storage battery 240. If the capacity
  • the delay unit 170 switches the conduction or interruption by the switch 145 with a delay from the timing when the power failure of the commercial power supply 300 is detected, even if instantaneous voltage drops (instant interruptions) frequently occur, It is possible to prevent the switch 145 from being activated each time. That is, chattering of the switch 145 can be prevented.
  • the first power supply device 100 to which the first storage battery 150 is connected is added to the second power supply device 200, even if the commercial power supply 300 is stopped, power supply by the first storage battery 150 is performed.
  • the storage battery 150 can be used reliably. That is, since it is possible to stably supply power to the load 500 from the added first power supply apparatus 100, the first storage battery 150 can be used without replacing the entire facility.
  • the switching unit 700 includes the second line 120 .
  • the second line 120 may not be provided in the switching unit 700.
  • the second storage battery 240 may be directly connected to the load 500. Even in this case, when the first storage battery 150 reaches the end-of-discharge voltage, the power supply from the second storage battery 240 can be switched.
  • the first power supply apparatus 100 including the switching unit 700 and the first storage battery 150
  • the first power supply apparatus 100 can also be applied to a communication base station backup system.
  • a communication base station backup system For example, when a power outage occurs at a communication base station, not only data communication cannot be performed at the time of a power outage, but also after power recovery, data communication before the power outage must be performed again, which is inefficient. This is a serious problem in developing countries where power supply conditions are poor. If the first power supply apparatus 100 is installed in a communication base station as a communication base station backup system, power supply to the communication base station can be stabilized, and communication can be stabilized.
  • the second power supply apparatus 200 may be installed together with the first power supply apparatus 100 instead of the existing apparatus.
  • the rack 210 the case where the 2nd storage battery 240 was arrange
  • the lead storage battery is heavier than the lithium ion battery. Maintenance work can be performed efficiently.
  • the power storage device 1 may be a power storage device set including a plurality of power storage devices.
  • FIG. 7 is a perspective view showing an overall external view of the power storage device set 1000.
  • FIG. 8 is a block diagram showing a functional configuration of the power storage device set 1000.
  • the Z-axis direction is shown as the vertical direction, and in the following, the Z-axis direction is described as the vertical direction. However, depending on the use mode, the Z-axis direction may not be the vertical direction. The direction is not limited to the vertical direction.
  • the X axis direction may be the vertical direction. The same applies to the following drawings.
  • the power storage device set 1000 can charge electricity from the outside and discharge electricity to the outside.
  • the power storage device set 1000 is connected to an electric power system such as the commercial power source 300 and the load 500, charges electricity from the commercial power source 300, and discharges electricity to the load 500.
  • the switching unit 700 described above is not shown.
  • the power storage device set 1000 includes a plurality of power storage devices 1 (three power storage devices 1A to 1C in the present embodiment), and is used for, for example, a power storage application or a power supply application.
  • the power storage device 1 is suitably used as a stationary power supply device.
  • the power storage device 1 includes a power storage unit 40 and a control device 90 that controls charging or discharging of the power storage unit 40.
  • the control device 90 controls charging or discharging of one power storage unit 40 among one or more power storage units 40 (three power storage units 40). In other words, the control device 90 is provided for each of the one or more power storage units 40.
  • the power storage unit 40 is a battery unit that can charge or discharge electric power.
  • the power storage unit 40 includes one or more power storage elements 153 connected in series.
  • the plurality of power storage units 40 included in the plurality of power storage devices 1 are connected in parallel by the power line 3.
  • the control device 90 has a switch 91 provided in the charging or discharging current path of the power storage unit 40, and controls charging / discharging of the power storage unit 40 by turning the switch 91 on and off.
  • the plurality of control devices 90 included in the plurality of power storage devices 1 are daisy chain connected in a loop shape by communication lines 2 such as an RS-232 cable and an RS-485 cable.
  • the standard of the communication line 2 is not particularly limited, and may be a serial communication cable or a parallel communication cable.
  • FIG. 9 is a block diagram illustrating a functional configuration of the control device 90.
  • the control device 90 is a device that controls charging / discharging of the power storage unit 40 including the power storage element 153. As shown in FIG. 9, the control device 90 includes a switch 91, a control unit 92, an external input terminal 83, and an external output terminal 84.
  • the switch 91 (second switch) is a charging / discharging path of the power storage unit 40 and is provided on the power supply line 62 connected to the power supply line 3 via the external connection terminal 203.
  • the switch 91 is turned off when at least one of the control signal and the external input signal is a signal for turning off the switch 91, and both the control signal and the external input signal turn on the switch 91. It has at least one (both in the present embodiment) of an on function that is turned on in the case of a signal. Further, in the present embodiment, when an abnormality occurs in any of the three power storage units 40, the switch 91 provided in the charging or discharging current path of each power storage unit 40 in which the abnormality has occurred is turned off.
  • the control unit 92 is, for example, a one-chip microcomputer such as a CPU (Central Processing Unit) including a memory such as a ROM (Read Only Memory) that holds a control program and a processor that executes the control program.
  • the control unit 92 includes an end voltage determination unit 191, a power recovery determination unit 192, and an abnormality determination unit 193.
  • the control unit 92 outputs a control signal for turning off the switch 91 when the end voltage determination unit 191 determines that the voltage of the power storage unit 40 is equal to or lower than the discharge end voltage.
  • the external output signal output from the external output terminal 84 is an off signal.
  • the control unit 92 When the power recovery determination unit 192 determines that the power system connected to the power storage unit 40 has recovered power, the control unit 92 outputs a control signal that turns on the switch 91. In this case, if the external input signal is an on signal, the external output signal output from the external output terminal 84 is also an on signal. If the external input signal is an off signal, the external output signal output from the external output terminal 84 is also an off signal.
  • the control unit 92 When the abnormality determination unit 193 determines that an abnormality has occurred in the power storage unit 40, the control unit 92 outputs a control signal that turns off the switch 91.
  • the external output signal depends only on the external input signal among the control signal and the external input signal. That is, if the external input signal is an off signal, the external output signal is also an off signal, and if the external input signal is an on signal, the external output signal is also an on signal.
  • the end voltage determination unit 191 determines whether or not the voltage of the power storage unit 40 is equal to or lower than the discharge end voltage.
  • the discharge end voltage is the minimum voltage of the power storage unit 40 that can be safely discharged.
  • the method for measuring the voltage of the power storage unit 40 is not particularly limited.
  • the power recovery determination unit 192 determines whether or not the power system connected to the power storage unit 40 has recovered power. For example, the power recovery determination unit 192 measures the voltage of the external connection terminal 203 and determines that the power system has recovered when the measured voltage is equal to or higher than a predetermined voltage. Note that the method for determining power recovery is not particularly limited.
  • the abnormality determination unit 193 determines whether or not an abnormality has occurred in the power storage unit 40.
  • the abnormality that occurs in the power storage unit 40 is, for example, an overcurrent due to an overload or a short circuit or a heat generation that exceeds the allowable temperature of the power storage element 153.
  • the abnormality determination unit 193 detects the amount of current flowing through the power supply line 62 using a Hall element (not shown) provided in the power supply line 62, and if the detected current amount is equal to or greater than a predetermined amount, It is determined that an abnormality has occurred.
  • the abnormality determination part 193 detects the temperature of the electrical storage element 153, for example using a thermistor (not shown), and when the detected temperature is more than predetermined temperature, it determines with the electrical storage unit 40 having abnormality.
  • a control signal is supplied to the switch 91 (S10).
  • the control unit 92 supplies a control signal, a discharge signal, and a charge signal to the switch 91.
  • an external input signal is supplied to the external input terminal 83 (S20).
  • the external input terminal 83 connected to the external output terminal 84 of the power storage device 1 in the previous stage via the communication line 2 supplies an external input signal to the switch 91 or the control unit 92.
  • step S30 when at least one of the control signal and the external input signal is a signal for turning off the switch 91 (when “at least one is an off signal” in S31). Then, an off function for turning off the switch 91 is executed (S32). At this time, an off signal is output from the external output terminal 84 as an external output signal.
  • both the control signal and the external input signal are signals that turn on the switch 91 (in the case of “both on signals” in S31)
  • an on function that turns on the switch 91 is executed (S33). At this time, an ON signal is output from the external output terminal 84 as an external output signal.
  • FIG.11 and FIG.12 is a figure which shows typically the state of the electrical storage apparatus set 1000 at the time of a power failure.
  • the power storage device set 1000 supplies power to the load 500. That is, the power storage device set 1000 performs power backup when the commercial power supply 300 is powered down. At this time, since the respective switches 91 of the plurality of power storage devices 1 are turned on, a discharge current flows from each of the plurality of power storage units 40 connected in parallel to the load 500.
  • the power storage device 1 here, the power storage device 1B in which the voltage of the power storage unit 40 is equal to or lower than the discharge end voltage appears.
  • the switch 91 is turned off and an off signal is output as an external output signal.
  • the switch 91 is turned off. Furthermore, in control device 90 of power storage device 1C, an off signal is output as an external output signal.
  • the switch 91 is turned off, and an off signal is output as the external output signal.
  • the power storage device set 1000 if there is at least one power storage device 1 in which the voltage of the power storage unit 40 is equal to or lower than the discharge end voltage among the plurality of power storage devices 1, the power storage units of all the power storage devices 1 are used. The discharge current from 40 stops in conjunction.
  • the timing at which the voltages of the plurality of power storage units 40 become equal to or lower than the end-of-discharge voltage can be different from each other due to the influence of variations in the capacity of the power storage units 40. For this reason, when the discharge currents from the plurality of power storage units 40 do not stop in conjunction with each other and stop at an independent timing when the voltage of each power storage unit 40 is equal to or lower than the discharge current, the following problems may occur. There is.
  • the discharge current from each power storage unit 40 is stopped at an independent timing, the discharge current is sequentially stopped from the power storage unit 40 having a small capacity.
  • the current supplied to the load 500 is constant, as the number of power storage units 40 whose discharge current is stopped increases, the current of another power storage unit 40 connected in parallel with the power storage unit 40 is increased. Sharing becomes large. That is, the amount of discharge current from the other power storage unit 40 increases.
  • the power storage unit 40 that has the latest timing of being equal to or lower than the discharge end voltage has a very large current (overcurrent) corresponding to the total amount of discharge currents supplied by the other power storage units 40. There is a risk of malfunction due to overcurrent.
  • a discharge current of 40 A per parallel flows at the time of rating
  • a power storage unit with the slowest timing that is equal to or lower than the discharge end voltage is allowed in the power storage unit.
  • the discharge currents from all the power storage devices 1 are stopped in conjunction with each other. It is possible to reduce the occurrence of problems due to the above.
  • the external input signal supplied from the external input terminal 83 may be a signal for turning on and off the switch 91 without being input to the control unit 92 or the like.
  • the time required for the switch 91 to switch from ON to OFF after switching from the ON signal to the OFF signal of the external input signal can be made very short (for example, about several tens of ⁇ S). The same applies when switching from off to on.
  • an external input signal supplied from the external input terminal 83 is input to the control unit 92 (CPU or the like) and supplied as a signal for turning on and off the switch 91 after some processing is performed on the computer. May be.
  • a predetermined time for example, several tens of mS
  • mS a predetermined time
  • 13 and 14 are diagrams schematically showing the state of the power storage device set 1000 at the time of power recovery.
  • each switch 91 of the plurality of power storage devices 1 is off. Thereafter, as shown in FIG. 13, when the commercial power supply 300 recovers from the power failure, the power storage device 1 (here, the power storage device 1 ⁇ / b> C) that is determined to be recovered by the control device 90 appears.
  • the power storage device 1C the external output signal output from the power storage device 1B is input as an external input signal, and the external output signal is an off signal. For this reason, even in the power storage device 1 ⁇ / b> C that has detected power recovery, the switch 91 remains off.
  • the timing at which it is determined that the connected power system has recovered can be different from each other due to the influence of variations in the characteristics of the analog elements constituting the power storage device 1. For this reason, the supply of the charging current to the plurality of power storage units 40 is not started in conjunction with each other, and is started at an independent timing at which it is determined that the power system connected to each power storage unit 40 has recovered.
  • the following problems may occur.
  • the supply of the charging current is stopped until it is determined that all the power storage devices 1 have recovered, and when it is determined that all the power storage devices 1 have recovered, the charging current Supply starts in conjunction with each other. For this reason, generation
  • FIG. 15 is a diagram schematically showing a state of the power storage device set 1000 when an abnormality occurs in the present embodiment.
  • power storage device 1 in this case, power storage device 1A
  • switch 91 is turned off and the external output signal is turned on.
  • power storage device 1B in which the external output signal output from power storage device 1A is input as an external input signal
  • switch 91 remains on and the external output signal also remains on. Therefore, in power storage devices 1B and 1C other than power storage device 1A, switch 91 remains on. Therefore, only the power storage unit 40 in which an abnormality has occurred can stop the discharge current.
  • the power storage unit 40 in which an abnormality has occurred can be continuously discharged by another power storage unit 40 while being disconnected from the load 500.
  • At least one of the control signal and the external input signal is applied to the switch 91 provided in the charging or discharging current path (in the present embodiment, the negative power supply line 62) of the power storage unit 40.
  • At least one of an off function that turns off when the signal turns off the switch 91 and an on function that turns on when both the control signal and the external input signal turn on the switch 91 are included.
  • the switches 91 provided in each of the charging or discharging current paths are turned off all at once by an external input signal, or all at once by an external input signal. Therefore, since all the power storage units 40 start or stop charging or discharging all at once, the occurrence of problems in the power storage units 40 can be reduced.
  • control device 90 controls charging or discharging of one power storage unit 40, and an external output terminal 84 externally turns on a switch 91 of another control device 90 when the switch 91 is turned on.
  • an output signal is output and the switch 91 is turned off, an external output signal that turns off the switch 91 of another control device 90 is output.
  • the other switches 91 corresponding to other power storage units 40 are also turned off in conjunction with each other.
  • the switch 91 corresponding to one power storage unit 40 is turned on, the other switches 91 corresponding to other power storage units 40 are also turned on in conjunction with each other. Therefore, since all the power storage units 40 can be charged or discharged in conjunction with each other, the occurrence of problems with the power storage units 40 can be reduced. That is, according to this configuration, the other switch 91 provided in the charging or discharging current path of the other power storage unit 40 can be controlled by the external output signal, so that the installation work at the installation site can be performed easily and reliably. it can.
  • a signal for turning off the switch 91 is input as an external input signal.
  • the switches 91 provided in each of the charging or discharging current paths are turned off all at once. Therefore, since each power storage unit 40 is disconnected from the load 500 at the same time, the occurrence of problems with the power storage unit 40 can be reduced.
  • the switches 91 provided in each of the charging or discharging current paths are turned on at the same time when the power is restored, so that the power storage units 40 are connected to the power system all at once. Therefore, it is possible to reduce the occurrence of problems of the power storage unit 40 at the time of power recovery.
  • a signal for turning off the switch 91 may be input as an external input signal.
  • the switches 91 provided in each of the charging or discharging current paths are turned off at the same time when the power is restored, so that the power storage units 40 are simultaneously disconnected from the power system. For this reason, generation
  • the switch 91 provided in the charging or discharging current path of the storage unit 40 in which an abnormality has occurred is turned off.
  • all the other power storage units 40 start or stop all at once while disconnecting the power storage unit 40 in which an abnormality has occurred from the commercial power supply 300 or the load 500.
  • the occurrence of problems can be reduced. That is, even if some of the power storage units 40 are abnormal, the other power storage units 40 are continuously charged and discharged, and N + 1 redundant design is achieved.
  • the present invention can be applied to a power supply device (power supply unit) attached to an existing device.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Stand-By Power Supply Arrangements (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

Le problème décrit par la présente invention est d'améliorer la durabilité et la stabilité d'un système d'alimentation électrique. La solution selon l'invention porte sur un système d'alimentation électrique, comprenant un premier dispositif d'alimentation électrique et un second dispositif d'alimentation électrique permettant de fournir à une charge l'énergie électrique provenant d'une source d'alimentation. Le second dispositif d'alimentation électrique comprend une seconde cellule de stockage et est connecté au premier dispositif d'alimentation électrique. Le premier dispositif d'alimentation électrique comprend : une unité de commutation ayant une borne de sortie qui peut être connectée électriquement à un premier commutateur et à la charge ; et un dispositif de stockage d'énergie ayant une première cellule de stockage, une unité de commande, un second commutateur et une borne d'entrée externe. Le second commutateur a au moins l'un parmi : une fonction ARRÊT de désactivation lorsqu'un signal de commande provenant de l'unité de commande et/ou un signal d'entrée externe fourni à la borne d'entrée externe depuis l'extérieur est un signal de désactivation du second commutateur ; et une fonction MARCHE d'activation lorsque le signal de commande et le signal d'entrée externe sont des signaux d'activation du second commutateur. Lorsqu'une coupure de la source d'alimentation est détectée, le premier commutateur se ferme et une connexion électrique est établie entre la première cellule de stockage et la borne de sortie.
PCT/JP2017/043915 2016-12-26 2017-12-07 Dispositif d'alimentation électrique, procédé de commande de dispositif d'alimentation électrique, système d'alimentation électrique et système de sauvegarde de station de base de communication WO2018123494A1 (fr)

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AU2017386331A AU2017386331A1 (en) 2016-12-26 2017-12-07 Power supply apparatus, method for controlling power supply apparatus, power supply system, and communication base station backup system

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JP2016251411A JP6764104B2 (ja) 2016-12-26 2016-12-26 電力供給装置、電力供給装置の制御方法及び電力供給システム

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110011340A (zh) * 2019-05-07 2019-07-12 江苏吉意信息技术有限公司 储能电源滞环控制***及方法、电子设备和存储介质
CN113595184A (zh) * 2021-07-27 2021-11-02 陕西绿能电子科技有限公司 环形充电***、充电控制方法、计算机设备及存储介质
CN114158115A (zh) * 2022-02-10 2022-03-08 为准（北京）电子科技有限公司 一种无线测试设备的供电管理方法、装置及***
CN114374263A (zh) * 2021-12-10 2022-04-19 中国商用飞机有限责任公司 供电电路、飞行器及供电方法
CN116231836A (zh) * 2023-05-10 2023-06-06 深圳市驰普科达科技有限公司 可外带使用的家用应急电源及供电设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7470915B2 (ja) * 2019-11-26 2024-04-19 パナソニックＩｐマネジメント株式会社 蓄電池システム
JP7405704B2 (ja) * 2020-06-17 2023-12-26 ニチコン株式会社 蓄電システム

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008172864A (ja) * 2007-01-09 2008-07-24 Toshiba Corp 無停電電源設備及びその増設方法
JP2009071999A (ja) * 2007-09-14 2009-04-02 Tdk-Lambda Corp 蓄電装置
JP2016073020A (ja) * 2014-09-26 2016-05-09 株式会社日立情報通信エンジニアリング 無停電電源装置及び無停電電源装置システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008172864A (ja) * 2007-01-09 2008-07-24 Toshiba Corp 無停電電源設備及びその増設方法
JP2009071999A (ja) * 2007-09-14 2009-04-02 Tdk-Lambda Corp 蓄電装置
JP2016073020A (ja) * 2014-09-26 2016-05-09 株式会社日立情報通信エンジニアリング 無停電電源装置及び無停電電源装置システム

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110011340A (zh) * 2019-05-07 2019-07-12 江苏吉意信息技术有限公司 储能电源滞环控制***及方法、电子设备和存储介质
CN113595184A (zh) * 2021-07-27 2021-11-02 陕西绿能电子科技有限公司 环形充电***、充电控制方法、计算机设备及存储介质
CN114374263A (zh) * 2021-12-10 2022-04-19 中国商用飞机有限责任公司 供电电路、飞行器及供电方法
CN114374263B (zh) * 2021-12-10 2023-12-22 中国商用飞机有限责任公司 供电电路、飞行器及供电方法
CN114158115A (zh) * 2022-02-10 2022-03-08 为准（北京）电子科技有限公司 一种无线测试设备的供电管理方法、装置及***
CN114158115B (zh) * 2022-02-10 2022-04-19 为准（北京）电子科技有限公司 一种无线测试设备的供电管理方法、装置及***
CN116231836A (zh) * 2023-05-10 2023-06-06 深圳市驰普科达科技有限公司 可外带使用的家用应急电源及供电设备

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