WO2016013191A1 - 電力ルータ、電力送受電システム、電力送受電方法、および電力送受電用プログラムが記憶された記憶媒体 - Google Patents
電力ルータ、電力送受電システム、電力送受電方法、および電力送受電用プログラムが記憶された記憶媒体 Download PDFInfo
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- WO2016013191A1 WO2016013191A1 PCT/JP2015/003614 JP2015003614W WO2016013191A1 WO 2016013191 A1 WO2016013191 A1 WO 2016013191A1 JP 2015003614 W JP2015003614 W JP 2015003614W WO 2016013191 A1 WO2016013191 A1 WO 2016013191A1
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- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
- H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
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- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00004—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the power network being locally controlled
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- 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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
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- 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
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/12—The local stationary network supplying a household or a building
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
- Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
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- 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
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
- Y04S20/222—Demand response systems, e.g. load shedding, peak shaving
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
Definitions
- the present invention relates to a power router, a power transmission / reception system, a power transmission / reception method, and a storage medium storing a power transmission / reception program.
- Patent Document 1 and Non-Patent Document 1 propose a power network system called Digital Grid (registered trademark) as a new power network.
- Digital Grid (registered trademark) is a power network system in which power networks (also referred to as power cells) subdivided into cells are asynchronously interconnected.
- the small-scale power cell is, for example, one ordinary household, one building, or one commercial facility.
- a large-scale power cell is, for example, a group of prefectures or municipalities of such facilities.
- Each power cell is provided with a facility serving as a power load (also simply referred to as a load).
- Each power cell may be further provided with a power generation facility, a power storage facility, and the like.
- Examples of power generation facilities include power generation facilities that use natural energy such as solar power generation, wind power generation, and geothermal power generation.
- the power cells are connected asynchronously so that the facilities inside each power cell can freely generate power, and moreover, the power cells can be interchanged smoothly. That is, even when a plurality of power cells are connected to each other, the voltage, phase, and frequency of power used in each power cell are asynchronous with the other power cells.
- FIG. 7 is an explanatory diagram showing an example of the power network system 10.
- the backbone power supplied from the large-scale power plant 12 is transmitted by the backbone system 11.
- a plurality of power cells 21 to 24 are arranged.
- Each of the power cells 21 to 24 includes a load such as a house 31 and a building 32, power generation facilities 33 and 34, a power storage facility 35, and the like.
- FIG. 7 illustrates a solar power generation panel 33, a wind power generator 34, and the like as power generation equipment.
- the power storage facility is, for example, a storage battery 35 or the like.
- the power generation facility and the power storage facility may be collectively referred to as a distributed power source.
- each of the power cells 21 to 24 is provided with power routers 41 to 44 serving as connection ports (connection ports) for connection to other power cells or the backbone system 11.
- the power routers 41 to 44 are provided with a plurality of legs (LEGs). Note that the connection terminals of each leg are indicated by white circles at the edges of the power routers 41 to 44 in FIG. Here, an address is assigned to each leg.
- Each leg has a connection terminal and a power conversion unit.
- the power conversion by a leg means changing from alternating current to direct current or direct current to alternating current, and changing the voltage, frequency, phase, etc. of electric power.
- All the power routers 41 to 44 are connected to the management server 50 via the communication network 51, and all the power routers 41 to 44 are integrated and controlled by the management server 50.
- the management server 50 uses each address assigned to each leg to instruct the power routers 41 to 44 where the leg is installed to transmit or receive power. Thereby, power interchange between the power cells is performed via the power routers 41 to 44.
- a plurality of power cells can share the power generation facilities 33 and 34 and the power storage facility 35. If mutual surplus power is interchanged between the power cells, the facility cost can be greatly reduced while maintaining a stable power supply-demand balance.
- the management server 50 controls the operation of the power routers 41 to 44 via the communication network 51. Therefore, the power network system 10 illustrated in FIG. 7 requires an operator who operates the management server 50 in order to control the operation of the power routers 41 to 44.
- an emergency such as a disaster
- the communication network 51 may be cut off, and the management server 50 may not be able to control the operation of the power routers 41 to 44 via the communication network 51. Furthermore, the management server 50 may stop operating due to a power failure.
- the power network system 10 cannot supply power when there is no operator of the management server 50 or when the management server 50 or the communication network 51 is stopped. There is a risk that power equipment cannot be moved.
- the present invention provides a power router, a power transmission / reception system, a power transmission / reception method, and a storage medium storing a power transmission / reception program that can automatically select a power supply destination according to the amount of power supply.
- the purpose is to provide.
- the power router according to the present invention is based on power consumption information and priority information stored in information storage means in which power consumption information indicating power consumed by a load and priority information indicating load priority is stored.
- Power supply destination selection means for selecting a supply destination of power supplied from the power supply source from among a plurality of loads, and power for supplying the power received from the power supply source to the load selected by the power supply destination selection means And a power transmission / reception means.
- the power transmission / reception system includes any one of the power routers and information storage means.
- the power transmission / reception method includes power consumption information and priority information stored in an information storage means in which power consumption information indicating the power consumed by the load and priority information indicating the priority of the load are stored.
- the power supply destination selection step for selecting the supply destination of the power supplied from the power supply source from a plurality of loads, and the power received from the power supply source to the load selected in the power supply destination selection step And a power transmission / reception step.
- the storage medium storing the power transmission / reception program according to the present invention is the consumption stored in the information storage means in which the power consumption information indicating the power consumed by the load and the priority information indicating the priority of the load are stored. Based on the power information and priority information, the power supply destination selection process for selecting the supply destination of the power supplied from the power supply source from a plurality of loads, and the power supply to the load selected in the power supply destination selection process A power transmission / reception program for causing a computer to execute power transmission / reception processing for supplying power received from a power source is stored.
- the power supply destination can be automatically selected according to the power supply amount.
- connection partner refers to a connection destination of a leg.
- FIG. 1 is a block diagram illustrating a configuration example of the power router 100.
- FIG. 2 is a block diagram focusing on the first leg 110 (shown as leg 1 in FIG. 1) in the power router 100.
- Power router 100 includes a DC bus 101, a plurality of legs 110 to 160, and a control unit 190.
- Each leg (shown as leg 1 to leg 6 in FIG. 1) 110 to 160 is connected in parallel to the DC bus 101 of the power router 100.
- the DC bus 101 is for flowing DC power, and is controlled so that the voltage of the DC bus 101 is maintained within a predetermined range (how the voltage of the DC bus 101 is maintained within the predetermined range. This will be described later.)
- the power router 100 is connected to an external device or the like via each leg 110 to 160, but each leg 110 to 160 converts the power received from the external device or the like into direct current and supplies it to the direct current bus 101.
- the power cells can be connected asynchronously regardless of the difference in frequency, voltage, and phase.
- the DC bus 101 is a parallel type having a smoothing capacitor 102 as shown in FIG.
- a voltage sensor 103 for measuring the voltage value of the DC bus is connected to the DC bus 101.
- the voltage sensor 103 inputs information indicating the measured voltage value of the DC bus 101 to the control unit 190. Further, as shown in FIG. 1, the control unit 190 controls the operation state of the legs 110 to 160 (power transmission operation to an external device, power reception operation from an external device, etc.) via the communication bus 104.
- the voltage of the DC bus 101 is kept within a predetermined range.
- FIG. 1 illustrates six legs 110-160.
- the six legs 110-160 are referred to as a first leg 110, a second leg 120,..., A sixth leg 160, as shown in FIG.
- the first leg 110 is shown as leg 1
- the second leg 120 is shown as leg 2.
- the third leg 130, the fourth leg 140, and the sixth leg 160 are omitted.
- the first leg 110 includes a power conversion unit 111, a current sensor 112, a switch 113, a voltage sensor 114, and a connection terminal 115.
- the power conversion unit 111 has a function of converting AC power into DC power and a function of converting DC power into AC power.
- the power converter 111 converts the DC power of the DC bus 101 into AC power having a predetermined frequency and voltage and transmits the AC power from the connection terminal 115 to an external device or the like. . In addition, the power conversion unit 111 converts AC power received from the connection terminal 115 into DC power and supplies the DC power to the DC bus 101.
- the power conversion unit 111 has a configuration of an inverter circuit. Specifically, as shown in FIG. 2, power conversion unit 111 includes transistors Q1 to Q6 and diodes D1 to D6. One ends of the transistors Q1 to Q3 are connected to the high potential side power supply line. The other ends of the transistors Q1 to Q3 are connected to one ends of the transistors Q4 to Q6, respectively. The other ends of the transistors Q4 to Q6 are connected to the low potential side power supply line. The cathodes of the diodes D1 to D6 are connected to the high potential side terminals of the transistors Q1 to Q6, respectively. The anodes of the diodes D1 to D6 are connected to the low potential side terminals of the transistors Q1 to Q6, respectively.
- the power conversion unit 111 has a configuration in which six antiparallel circuits composed of transistors and diodes are connected in a three-phase bridge.
- a wiring that is drawn from a node between the transistor Q1 and the transistor Q4, a node between the transistor Q2 and the transistor Q5, and a node between the transistor Q3 and the transistor Q6, and connecting these nodes and the connection terminal is connected to the branch line BL. Called. Since it is a three-phase alternating current, one leg has three branch lines BL.
- MOSFETs Metal-Oxide-Semiconductor Field-Effect Transistors
- IGBTs Insulated Gate Bipolar Transistors
- control unit 190 The direction of power and the frequency of AC power are controlled by the control unit 190. That is, switching of transistors Q1 to Q6 is controlled by control unit 190. Operation control by the control unit 190 will be described later.
- a switch 113 is disposed between the power conversion unit 111 and the connection terminal 115. By opening / closing the switch 113, the branch line BL is opened / closed, that is, the external device or the like and the DC bus 101 are cut off or connected.
- the voltage sensor 114 measures the voltage applied to the branch line BL, and the current sensor 112 measures the current value of the current flowing through the branch line BL.
- the switching operation of the switch 113 is controlled by the control unit 190, and the voltage sensor 114 and the current sensor 112 input measurement results to the control unit 190.
- the power conversion unit 111 is an inverter circuit, and AC power is supplied to the connection destination of each leg.
- the connection destination of each leg may receive DC power like the storage battery 35.
- the third leg 130 shown in FIG. 1 is connected to the storage battery 35.
- the power conversion performed by the third leg 130 is DC (Direct Current) -DC conversion. Therefore, an inverter circuit and a converter circuit are provided in parallel in the power conversion unit 111, and the inverter circuit and the converter circuit are selectively used depending on whether AC power is supplied to the connection destination or DC power is supplied. It may be.
- a leg dedicated to DC-DC conversion in which the power converter 111 is a DC-DC converter may be provided.
- the sixth leg 160 does not include a power converter. Therefore, the sixth leg 160 is not directly connected to the DC bus 101.
- the sixth leg 160 is connected to the DC bus 101 via the branch line BL of the fifth leg 150.
- the internal wiring of the sixth leg 160 is also referred to as a branch line BL.
- the branch line BL of the sixth leg 160 is connected between the connection terminal 155 and the switch 153 in the fifth leg 150.
- the sixth leg 160 includes a switch 163, a voltage sensor 164, a current sensor 162, and a connection terminal 165.
- the branch line BL of the sixth leg 160 is connected to the branch line BL of the fifth leg 150 via the switch 163. That is, the connection terminal 165 of the sixth leg 160 is connected to the connection terminal 155 of the fifth leg 150.
- a switch 163 is installed between the connection terminal 165 of the sixth leg 160 and the connection terminal 155 of the fifth leg 150, but no power converter is installed. Therefore, power is conducted without being converted between the connection terminal 165 of the sixth leg 160 and the connection terminal 155 of the fifth leg 150.
- a leg that does not have a power converter like the sixth leg 160 may be referred to as an AC through leg.
- the current sensor 162 and the voltage sensor 164 measure the current value and voltage value of the branch line BL, and input the measurement result to the control unit 190.
- the opening / closing operation of the switch 163 is controlled by the control unit 190.
- the first to fifth legs 110 to 150 include power converters 111 to 151, respectively, and the transistors Q1 to Q6 in the power converters 111 to 151 are controlled by the control unit 190, respectively.
- the control unit 190 controls the transistors Q1 to Q6 in the power converters 111 to 151.
- the power router 100 is in a node of the power network system 10 and plays an important role in connecting the backbone system 11, the load 30, the distributed power source, the power cell, and the like. Therefore, the connection terminals 115 to 165 of the legs 110 to 160 are connected to the main system 11, the load 30, the distributed power source, and the power router of another power cell, respectively.
- the inventors of the present invention have different roles of each leg 110 to 160 depending on the connection destination, and the power router cannot play the role unless each leg 110 to 160 performs an appropriate operation according to the role. I realized that. Therefore, the inventors of the present invention changed the operation mode of the leg according to the connection destination.
- the operation mode of the leg is called the operation mode.
- three types of leg operation modes are prepared, and the operation mode is switched depending on the connection destination. It is assumed that the leg operation modes include a master mode, a self-supporting mode, and a designated power transmission / reception mode. Hereinafter, it demonstrates in order.
- the master mode is an operation mode when the leg connection terminal is connected to a stable power supply source such as the backbone system 11 and is an operation mode for maintaining the voltage of the DC bus 101 within a predetermined range. .
- the connection terminal 115 of the first leg 110 is connected to the backbone system 11.
- the first leg 110 is controlled and operated as a master mode, and plays a role of maintaining the voltage of the DC bus 101. Power may flow into DC bus 101 from other legs 120-150 to DC bus 101, or power may flow out of legs 120-150.
- the leg 110 When the leg 110 is operated and controlled in the master mode, when the power flows out from the DC bus 101 and the voltage of the DC bus 101 falls from a predetermined range, the power that flows out and runs short is connected (this example Then, power is received from the main system 11) to compensate. In addition, when the power flows into the DC bus 101 and the voltage of the DC bus 101 rises from a predetermined range, the leg 110 supplies the excess power due to the flow to the connection destination (the backbone system 11 in this example). To do. In this manner, the leg 110 maintains the voltage of the DC bus 101 when the operation is controlled as the master mode.
- At least one leg must be operated as master mode. Otherwise, it is difficult to maintain the voltage of the DC bus 101 within a predetermined range.
- two or more legs may be operated in the master mode in one power router, but it is preferable that only one leg in the master mode is provided in one power router.
- the leg that becomes the master mode may be connected to, for example, a distributed power source (including a storage battery) equipped with a self-excited inverter in addition to the main system 11.
- a distributed power source equipped with a separately-excited inverter and a leg that becomes a master mode cannot be connected to each other.
- a leg operated in the master mode may be referred to as a master leg.
- the switch 113 When activating the master leg: First, the switch 113 is opened (shut off), and the connection terminal 115 and the connection destination are connected to each other. It is assumed that the connection destination is the backbone system 11.
- the voltage sensor 114 measures the voltage of the connected main system 11 and determines the amplitude, frequency, and phase of the voltage of the main system 11 using a PLL (Phase-Locked-Loop) or the like.
- the control unit 190 adjusts the output of the power conversion unit 111 so that the voltage of the amplitude, frequency, and phase of the backbone system 11 obtained by the voltage sensor 114 is output from the power conversion unit 111. That is, control unit 190 determines a switching pattern between the on state and off state of transistors Q1 to Q6. When the output of the power conversion unit 111 is stable, the control unit 190 causes the switch 113 to transition to the closed state (conduction) state and connects the power conversion unit 111 and the backbone system 11 to each other. At this time, since the voltage of the power output from the power conversion unit 111 and the voltage of the backbone system 11 are synchronized, no current flows between each other.
- Voltage sensor 103 measures the voltage of DC bus 101.
- a predetermined rated voltage which may be a voltage within a predetermined range including the predetermined rated voltage
- power is transmitted from the master leg 110 to the backbone system 11.
- the control unit 190 controls the power conversion unit 111. Specifically, for example, the control unit 190 adjusts at least one of the amplitude and phase of the voltage of the power output from the power conversion unit 111, and the main system 11 from the DC bus 101 via the master leg 110. So that power is transmitted toward It is assumed that the rated voltage of DC bus 101 is set in advance.
- the control unit 190 controls the power conversion unit 111. Specifically, for example, the control unit 190 adjusts at least one of the amplitude and phase of the voltage of the power output from the power conversion unit 111, and the DC bus 101 from the backbone system 11 via the master leg 110. So that power can be transmitted to It will be understood that the operation of the master leg in this way can maintain the voltage of the DC bus 101 at a predetermined rated voltage.
- the self-supporting mode is an operation mode in which the leg itself generates power having a voltage having an amplitude and frequency specified from the management server 50 and transmits / receives power to / from the connection destination.
- the self-supporting mode is, for example, an operation mode in which the leg supplies power toward a facility that consumes power, such as the load 30, or an operation mode in which power transmitted from the connection destination is received as it is.
- a load 30 is connected to the connection terminal 125 of the second leg 120. Then, the second leg 120 is operated and controlled as the self-supporting mode, and power is supplied to the load 30. Further, when connected to other power routers as in the fourth leg 140 and the fifth leg 150, the fourth leg 140 and the fifth leg 150 are used to transmit the power required to the other power routers. May be controlled in a self-supporting mode. Alternatively, when connected to other power routers as in the fourth leg 140 or the fifth leg 150, the fourth leg 140 or the fifth leg 150 is used to receive power transmitted from the other power router. May be operated in a self-supporting mode.
- a leg that is operated in the self-supporting mode is also called a self-supporting leg. There may be a plurality of independent legs in one power router.
- the switch 123 is opened (cut off), and the connection terminal 125 and the load 30 are connected to each other.
- the control unit 190 supplies the power (voltage) of the specified amplitude and frequency to the power. Control is performed so that the converter 121 supplies the load 30.
- control unit 190 determines a switching pattern between the on state and the off state of transistors Q1 to Q6.
- the control unit 190 causes the switch 113 to transition to the closed state (conduction) state, and connects the power conversion unit 121 and the load 30 to each other. And if the load 30 consumes electric power, the electric power according to consumption will be supplied to the load 30 from the independent leg 120.
- the designated power transmission / reception mode is an operation mode for transmitting / receiving a designated amount of power (also referred to as designated power). That is, there are a case where the designated power is supplied to the connection destination and a case where the designated power is received from the connection destination.
- the fourth leg 140 and the fifth leg 150 are each connected to other power cells. In such a case, in the designated power transmission / reception mode, power (designated power) determined by one (eg, leg) and the other (eg, another power cell) is interchanged.
- the third leg 130 is connected to the storage battery 35.
- a predetermined amount of power (designated power) is supplied to the storage battery 35 to charge the storage battery 35.
- a distributed power source (including a storage battery) equipped with a self-excited inverter and a specified power transmission / reception leg may be connected to each other.
- the distributed power source on which the separately excited inverter is mounted and the designated power transmission / reception leg cannot be connected to each other.
- a leg operated in the specified power transmission / reception mode is also referred to as a specified power transmission / reception leg.
- the operation control when operating the specified power transmission / reception leg is explained.
- the voltage sensor 154 measures the voltage of the connected backbone system and obtains the frequency and phase of the power of the connected backbone system using a PLL or the like. And the voltage sensor 154 is based on the active power value and the reactive power value designated from the management server 50, and the frequency and phase of the power of the backbone system to which the connection is made. Find the value.
- the current sensor 152 measures a current value that is a current value.
- the control unit 190 adjusts the power converter 151 so that a current corresponding to the difference between the target value and the current value is added and output. Specifically, the control unit 190 adjusts at least one of the amplitude and phase of the voltage supplied by the power conversion unit 151, for example, between the designated power transmission / reception leg and the connected backbone system. Let the power flow.
- first to fifth legs 110 to 150 having the same configuration can play the role of three patterns according to the operation control.
- FIG. 3 is a block diagram illustrating the power network system 10A according to the first embodiment of this invention.
- the power network system 10 ⁇ / b> A includes a power router 100 ⁇ / b> A and a specification information storage device 800.
- the power router 100A includes a control unit 190A, a voltage sensor 103, a DC bus 101, first to fourth legs (shown as leg 1 to leg 4 in FIG. 3) 110 to 140, and connection terminals 115 to 145.
- a specification information table 801 is stored in the specification information storage device 800.
- the same components as those in the power network system 10 shown in FIG. 1 are denoted by the same reference numerals as those in FIG.
- the control unit 190A controls the operations of the first to fourth legs 110 to 140 based on the information set in the specification information table 801 stored in the specification information storage device 800.
- the specification information storage device 800 is a recording medium or a semiconductor memory that stores the specification information table 801.
- the specification information storage device 800 may be a recording medium or a semiconductor memory mounted on an information communication terminal such as a personal computer, a mobile phone, or a smartphone. Further, the specification information storage device 800 may be an IC (Integrated Circuit) card incorporating a recording medium or a semiconductor memory.
- IC Integrated Circuit
- FIG. 4 is an explanatory diagram showing an example of the specification information table 801.
- connection destination specification information is set for each leg in the specification information table.
- the connection destination specification information indicates information indicating the connection destination type, information indicating the connection destination maximum power, information indicating the connection destination frequency, information indicating the connection destination voltage, and priority. Contains information.
- the information indicating the connection destination type indicates the type of the connection destination of the corresponding leg, and indicates one of “power source”, “load”, “other power cell”, and the like.
- the information indicating the maximum power at the connection destination indicates the value of the maximum power that the power supply can output when the connection destination of the corresponding leg is a power supply, and when the connection destination of the corresponding leg is a load, Indicates the maximum power value consumed by the load. Note that the value indicated by the information indicating the connection destination maximum power is also simply referred to as the value of the connection destination maximum power.
- the information indicating the connection destination frequency indicates the frequency of power output from the power supply when the connection destination of the corresponding leg is an AC power supply, and when the connection destination of the corresponding leg is an AC load, Indicates the frequency of input power. Further, the information indicating the connection destination frequency indicates “DC” when the connection destination of the corresponding leg is a DC power supply or a DC load.
- the information indicating the connection destination voltage indicates the value of the voltage output by the power supply when the connection destination of the corresponding leg is a power supply, and the operation of the load when the connection destination of the corresponding leg is a load. Indicates the value of the required voltage.
- the information indicating the connection destination priority is set when the connection destination of the corresponding leg is a load. If the load is a general load, it is set to “general”, and if the load is an important load, “important” is set. Set to
- “power” is set as information indicating the connection destination type in the first row corresponding to the first leg 110, and the maximum power of the connection destination.
- “6 kW” is set as the information indicating the connection destination
- “60 Hz” is set as the information indicating the connection destination frequency
- “200 Vrms” is set as the information indicating the connection destination voltage.
- “power” is set as information indicating the connection destination type
- “2 kW” is set as information indicating the maximum power of the connection destination
- information indicating the connection destination frequency is set.
- “DC” is set
- “48V” is set as information indicating the connection destination voltage.
- “load” is set as information indicating the connection destination type
- “3 kW” is set as information indicating the connection destination maximum power
- “3” is set as information indicating the connection destination frequency.
- “DC” is set
- “380V” is set as information indicating the connection destination voltage
- “important” is set as information indicating the priority.
- “load” is set as information indicating the connection destination type
- “4 kW” is set as information indicating the maximum connection destination power
- information indicating the connection destination frequency is set.
- “50 Hz” is set
- “100 Vrms” is set as information indicating the connection destination voltage
- “general” is set as information indicating the priority.
- the line order in the specification information table 801 is significant, and the lines are arranged in a predetermined order. Specifically, as shown in FIG. 4, in the row (first leg and second leg) in which the information indicating the connection destination type indicates “power”, the information indicating the connection destination type indicates “load”. It is arranged above the row (the fourth leg and the third leg). Also, as shown in FIG. 4, the information indicating the connection destination priority among the rows (the fourth leg and the third leg) where the information indicating the connection destination type indicates “load” indicates “important”. The row (the fourth leg) is arranged above the row (third leg) in which the information indicating the connection destination priority indicates “general”. That is, the rows in which the information indicating the connection destination type indicates “load” are arranged so that the connection destination priorities are in descending order (in order from the highest priority to the lowest).
- a backbone system is connected to the first leg 110 as a power source, and a storage battery is connected to the second leg 120 as a power source.
- a load having a general priority is connected to the third leg 130, and a load having a priority is connected to the fourth leg 140.
- the control unit 190A of the power router 100A reads the specification information table 801 from the specification information storage device 800, and controls the operation of the legs 110 to 140 according to the contents of the read specification information table 801.
- FIG. 5 is a flowchart illustrating the operation of the power network system 10A according to the first embodiment of this invention.
- the timing at which the control unit 190A executes the flowchart shown in FIG. 5 is when the power router 100A is activated or when the specification information table 801 is updated.
- control unit 190A initializes the variable when the timing for executing the flowchart shown in FIG. 5 has arrived (step S101). Specifically, control unit 190A initializes the supplied power value, which is a variable, to “0”.
- the supply power value represents the total value of power that can be supplied by the power supply connected to each leg.
- control unit 190A reads the specification information table 801 stored in the specification information storage device 800 (step S102).
- the control unit 190 reads the specification information table 801 by a reading unit (not shown) capable of reading information by, for example, contact / non-contact, wired / wireless, or any combination thereof.
- the control unit 190A executes the processing from steps S104 to S114 described later for each leg. That is, the process is repeated for the number of times corresponding to the number of rows in the specification information table 801 read out in the process of step S102. Therefore, the control unit 190 initializes the value of the counter J to “1” (step S103).
- the counter J indicates the row number of the specification information table 801.
- step S105 When the information indicating the connection destination type of the J-th line in the specification information table 801 read out in the process of step S102 indicates “power”, the control unit 190A proceeds to step S105, and sets the connection destination type. When the indicated information indicates “load”, the process proceeds to step S108 (step S104). (When the leg is connected to a power source) The control unit 190A adds the value of the connection destination maximum power in the J-th row of the specification information table 801 read out in step S102 to the supply power value (step S105). Then, the control unit 190A stores the added power supply value in, for example, a storage unit (not shown).
- control unit 190A controls the operation of the leg corresponding to the Jth row of the specification information table 801 read out in the process of step S102 in the master mode (step S106).
- the control unit 190A notifies the operator that the operation control of the leg has been successful (step S107), and proceeds to step S113.
- the notification means for example, visual information using LED (Light Emitting Diode) or the like, auditory information using buzzer or the like, communication information using electronic mail, or any combination of these is used.
- the control unit 190A determines whether or not the power router 100A can supply the power according to the value of the connection destination maximum power in the J-th row of the specification information table 801 read out in step S102 (step S102). S108).
- the power supply value is a value that is initialized in the process of step S101 and updated in the process and stored in the storage means when the process of step S105 or step S109 is executed.
- control unit 190A determines that the expression (1) is satisfied (Y in step S108)
- the control unit 190A performs the following processing. That is, the control unit 190A subtracts the connection destination maximum power value in the J-th row of the specification information table 801 read out in step S102 from the supply power value (step S109). Then, the control unit 190A stores the supplied power value after the subtraction, for example, in a storage unit (not shown).
- control unit 190A controls the operation of the leg corresponding to the Jth line of the specification information table 801 read out in the process of step S102 in the independent mode (step S110). At this time, the control unit 190A outputs a frequency and a voltage according to each of the information indicating the connection destination frequency and the information indicating the connection destination voltage in the J-th row of the specification information table 801 read out in step S102. Then, the leg is operated and controlled. Then, the process proceeds to step S107.
- control unit 190A determines that the expression (1) is not satisfied (N in step S108)
- the control unit 190A performs the following processing. That is, the control unit 190A stops the operation of the leg corresponding to the Jth row of the specification information table 801 read out in the process of step S102, and excludes the load connected to the leg from the power supply destination (step S102). S111). Then, the control unit 190A notifies the operator that the operation control of the leg has failed (Step S112), and proceeds to Step S113. For example, the control unit 190A notifies the operation failure by means similar to the notification of the operation success in the process of step S107.
- the control unit 190A adds 1 to the value of the counter J (step S113), and when the value after the addition does not exceed the number of legs (N in step S114), the control unit 190A proceeds to step S104. In addition, when the value after the addition exceeds the number of legs (Y in step S114), the control unit 190A ends the process.
- the load of the power supply destination is automatically selected based on the connection destination maximum power corresponding to the maximum power consumption of the load connected to each leg and the load connection destination priority. Can do.
- whether or not power can be supplied to an important load having a high connection destination priority is examined, and then whether or not power can be supplied to a general load is examined. Accordingly, when there is power that can be supplied even if power is supplied to each important load, power is supplied to the general load. Therefore, priority is given to the supply of power to the important load, and it is also possible to supply power to the general load according to the power supply capability, and the power supply destination can be flexibly selected according to the power supply capability. .
- the leg connected to the power supply source converts the power supplied by the power supply source into DC power as power in a predetermined form
- the leg connected to the load converts the DC power into the load. It is converted into electric power in a mode according to and supplied to the load.
- the predetermined form of the conversion destination power of the power supplied from the power supply source may not be direct current, and may be alternating current with a frequency of 50 Hz or 60 Hz, for example.
- the information indicating the connection destination priority has two levels of “general” and “important”. However, the priority of three or more levels is set as information indicating the connection destination priority. Also good. Specifically, for example, the information indicating the connection destination priority may indicate the priority from the first stage having the highest priority to the sixth stage having the lowest priority.
- the load in the first stage is, for example, a fire department or a police station.
- the load in the sixth stage is, for example, a street advertisement.
- step S108 the possibility of power supply to the load is examined in order from the load with the highest priority.
- connection destinations are arranged in descending order.
- connection destination priority indicated by the information indicating the connection destination priority may be arranged so that the connection destination maximum power values are in ascending order.
- FIG. 6 is a block diagram illustrating a configuration example of the power router 1 according to the second embodiment of this invention.
- the power router 60 according to the second exemplary embodiment of the present invention includes a power supply destination selection unit 61 and a power transmission / reception unit 62.
- the power supply destination selection means 61 corresponds to the control unit 190A shown in FIG.
- the power transmission / reception means 62 corresponds to the first to fourth legs 110 to 140 shown in FIG.
- the power supply destination selection unit 61 includes power consumption information and priority information stored in the information storage unit 70 in which power consumption information indicating the power consumed by the load and priority information indicating the priority of the load are stored. Based on the above, the supply destination of the power supplied from the power supply source is selected from a plurality of loads.
- the information storage means 70 corresponds to the specification information storage device 800 shown in FIG.
- the power transmission / reception means 62 supplies the power received from the power supply source to the load selected by the power supply destination selection means 61.
- the power supply destination can be automatically selected according to the power supply amount.
- the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention described above.
- the present invention has been described as a hardware configuration, but the present invention is not limited to this.
- the present invention can also realize arbitrary processing by causing a CPU (Central Processing Unit) to execute a computer program.
- a CPU Central Processing Unit
- Non-transitory computer readable media include various types of tangible storage media.
- Examples of non-transitory computer-readable media are magnetic recording media (eg, flexible disks, magnetic tapes, hard disks), magneto-optical recording media (eg, magneto-optical disks), CD (registered trademark) -ROM (Compact Disc-Read Only Memory).
- the program may be supplied to the computer by various types of temporary computer readable media.
- Examples of transitory computer readable media include electrical signals, optical signals, and electromagnetic waves.
- the transitory computer readable medium can supply the program to a computer via a wired communication path such as an electric wire and an optical fiber, or a wireless communication path.
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Abstract
Description
電力ルータ100は各レグ110~160を介して外部機器等に接続されるのであるが、各レグ110~160は、外部機器等から受電した電力を直流に変換して直流母線101に供給する。このように各レグ110~160が受電した電力を直流に変換することにより、周波数や電圧、位相の違いに関わらず、電力セル同士を非同期で接続することができるようになる。
第1~第5レグ110~150は電力変換器111~151をそれぞれ含んでおり、電力変換器111~151内のトランジスタQ1~Q6はそれぞれ制御部190によってスイッチング動作を制御されるものであることは既に述べた。
マスターモードとは、レグの接続端子が基幹系統11などの安定した電力供給源に接続される場合の運転モードであり、直流母線101の電圧を所定の範囲内に維持するための運転モードである。図1に示す例では、第1レグ110の接続端子115が基幹系統11に接続されている。そして、第1レグ110は、マスターモードとして運用制御され、直流母線101の電圧を維持する役割を果たす。直流母線101には、他のレグ120~150から直流母線101に電力が流入することもあれば、レグ120~150から電力が流出することもある。レグ110は、マスターモードとして運用制御された場合に、直流母線101から電力が流出して直流母線101の電圧が所定の範囲から下がったときに、流出して不足した電力を接続先(本例では基幹系統11)から受電して補てんする。また、レグ110は、直流母線101に電力が流入して直流母線101の電圧が所定の範囲から上がったときに、流入で過剰になった電力を接続先(本例では基幹系統11)に供給する。このようにして、レグ110は、マスターモードとして運用制御された場合に、直流母線101の電圧を維持するのである。
自立モードとは、レグが、管理サーバ50から指定された振幅および周波数の電圧の電力を自ら作り出して、接続先と送受電する運転モードである。自立モードは、例えば、レグが、負荷30などの電力を消費する設備に向けて電力を供給するための運転モードや、接続先から送電された電力をそのまま受電するための運転モードである。
指定電力送受電モードとは、指定された量の電力(指定電力ともいう)を送受電するための運転モードである。すなわち、接続先に指定電力を供給する場合と、接続先から指定電力を受電する場合とがある。図1に示す例では、第4レグ140および第5レグ150が、それぞれ他の電力セルと互いに接続されている。このような場合に、指定電力送受電モードでは、一方(例えば、レグ)と他方(例えば、他の電力セル)との間で決まった分の電力(指定電力)を互いに融通する。また、図1に示す例では、第3レグ130は蓄電池35に接続されている。このような場合に、指定電力送受電モードでは、決まった分の電力(指定電力)を蓄電池35に供給して蓄電池35を充電する。また、自励式インバータを搭載する分散型電源(蓄電池も含む)と指定電力送受電レグとが互いに接続されてもよい。ただし、他励式インバータが搭載されている分散型電源と指定電力送受電レグとは互いに接続できない。
[構成の説明]
本発明の第1の実施形態の電力ネットワークシステム10Aについて、図面を参照して説明する。図3は、本発明の第1の実施形態の電力ネットワークシステム10Aを示すブロック図である。図3に示すように、電力ネットワークシステム10Aは、電力ルータ100Aと、諸元情報記憶装置800とを含む。
続いて、本発明の第1の実施形態の電力ネットワークシステム10Aの動作について説明する。図5は、本発明の第1の実施形態の電力ネットワークシステム10Aの動作を示すフローチャートである。
(レグの接続先が電源であるとき)
制御部190Aは、ステップS102の処理で読み出した諸元情報テーブル801のJ行目の接続先最大電力の値を、供給電力値に加算する(ステップS105)。そして、制御部190Aは、加算後の供給電力値を、例えば、記憶手段(図示せず)に記憶させる。
(レグの接続先が負荷であるとき)
制御部190Aは、ステップS102の処理で読み出した諸元情報テーブル801のJ行目の接続先最大電力の値に応じた電力を、電力ルータ100Aが供給可能であるか否かを判定する(ステップS108)。
式(1)において、供給電力値は、ステップS101の処理で初期化され、ステップS105またはステップS109の処理が実行された場合に当該処理で更新されて記憶手段に記憶された値である。
次に、本発明の第2の実施形態の電力ルータについて説明する。図6は、本発明の第2の実施形態の電力ルータ1の構成例を示すブロック図である。図6に示すように、本発明の第2の実施形態の電力ルータ60は、電力供給先選択手段61および電力送受電手段62を含む。電力供給先選択手段61は、図3に示す制御部190Aに相当する。電力送受電手段62は、図3に示す第1~第4レグ110~140に相当する。
<その他の実施形態>
さらに、本発明は上述した実施形態のみに限定されるものではなく、既に述べた本発明の要旨を逸脱しない範囲において種々の変更が可能であることは勿論である。例えば、上述の実施形態では、本発明をハードウェアの構成として説明したが、本発明は、これに限定されるものではない。本発明は、任意の処理を、CPU(Central Processing Unit)にコンピュータプログラムを実行させることにより実現することも可能である。
11 基幹系統
12 大規模発電所
21 電力セル
22 電力セル
23 電力セル
24 電力セル
30 負荷
31 家
32 ビル
33 太陽光発電パネル
34 風力発電機
35 電力貯蔵設備(蓄電池)
41 電力ルータ
42 電力ルータ
43 電力ルータ
44 電力ルータ
50 管理サーバ
51 通信網
100、100A 電力ルータ
101 直流母線
102 平滑コンデンサ
103 電圧センサ
104 通信バス
110 第1レグ
111 電力変換部
112 電流センサ
113 開閉器
114 電圧センサ
115 接続端子
120 第2レグ
121 電力変換部
122 電流センサ
123 開閉器
124 電圧センサ
125 接続端子
130 第3レグ
135 接続端子
140 第4レグ
145 接続端子
150 第5レグ
151 電力変換部
152 電流センサ
153 開閉器
154 電圧センサ
155 接続端子
160 第6レグ
162 電流センサ
163 開閉器
164 電圧センサ
165 接続端子
190、190A 制御部
800 諸元情報記憶装置
801 諸元情報テーブル
BL 支線
D1~D6 ダイオード
Q1~Q6 トランジスタ
Claims (8)
- 負荷が消費する電力を示す消費電力情報と前記負荷の優先度を示す優先度情報とが記憶された情報記憶手段に記憶されている前記消費電力情報と前記優先度情報とに基づいて、電力供給源から供給された電力の供給先を複数の負荷の中から選択する電力供給先選択手段と、
前記電力供給先選択手段が選択した負荷に前記電力供給源から受電した電力を供給する電力送受電手段とを備えた
ことを特徴とする電力ルータ。 - 前記電力供給先選択手段は、前記優先度情報によって示される前記優先度が高い順に、前記電力送受電手段が前記負荷に前記電力を供給可能か否かを判定する供給可否判定を行い、前記供給可否判定によって前記電力を供給可能であると判定した場合に、前記電力の供給先に前記負荷を選択する
請求項1に記載の電力ルータ。 - 前記電力供給先選択手段は、前記供給可否判定において、前記電力供給源が供給可能な電力の合計値から、前記優先度情報によって示される前記優先度が高い順に前記負荷が消費する最大の電力の値である最大電力値を順次減算し、前記減算結果の値よりも前記最大電力値が大きい負荷を前記電力の供給先から除外する
請求項2に記載の電力ルータ。 - 前記電力送受電手段は、前記電力供給源から供給された電力を、前記電力供給先選択手段が選択した負荷に応じた態様の電力に変換して前記負荷に前記電力を供給する
請求項1から請求項3のうちいずれかに記載の電力ルータ。 - 互いに接続された複数の前記電力送受電手段を備え、
前記各電力送受電手段には電力供給源または負荷が接続され、
前記電力供給源が接続された電力送受電手段は、前記電力供給源から受電した電力を所定の態様の電力に変換し、
前記負荷が接続された前記電力送受電手段は、前記所定の態様に変換された電力を前記負荷に応じた態様の電力に変換して前記負荷に前記電力を供給する
請求項1から請求項4のうちいずれかに記載の電力ルータ。 - 請求項1から請求項5のうちいずれかに記載の電力ルータと、
前記情報記憶手段とを備えた
ことを特徴とする電力送受電システム。 - 負荷が消費する電力を示す消費電力情報と前記負荷の優先度を示す優先度情報とが記憶された情報記憶手段に記憶されている前記消費電力情報と前記優先度情報とに基づいて、電力供給源から供給された電力の供給先を複数の負荷の中から選択し、
選択した前記負荷に前記電力供給源から受電した電力を供給する
ことを特徴とする電力送受電方法。 - 負荷が消費する電力を示す消費電力情報と前記負荷の優先度を示す優先度情報とが記憶された情報記憶手段に記憶されている前記消費電力情報と前記優先度情報とに基づいて、電力供給源から供給された電力の供給先を複数の負荷の中から選択する電力供給先選択処理と、
前記電力供給先選択処理で選択した負荷に前記電力供給源から受電した電力を供給する電力送受電処理とを、コンピュータに実行させる
ための電力送受電用プログラムが記憶された記憶媒体。
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US15/326,406 US10581244B2 (en) | 2014-07-23 | 2015-07-17 | Power router, power transmitting and receiving system, and power transmitting and receiving method |
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US20170077714A1 (en) * | 2015-09-10 | 2017-03-16 | Cpg Technologies, Llc | Flexible network topology and bidirectional power flow |
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US20220416547A1 (en) * | 2019-12-23 | 2022-12-29 | Nec Corporation | Service management device, power conditioning system, distributed power supply system, power control system, service management method, and recording medium |
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