WO2015105006A1 - 電力制御装置及び電力制御方法 - Google Patents
電力制御装置及び電力制御方法 Download PDFInfo
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- WO2015105006A1 WO2015105006A1 PCT/JP2014/084290 JP2014084290W WO2015105006A1 WO 2015105006 A1 WO2015105006 A1 WO 2015105006A1 JP 2014084290 W JP2014084290 W JP 2014084290W WO 2015105006 A1 WO2015105006 A1 WO 2015105006A1
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- power
- cell
- bus line
- power supply
- control unit
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc 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
- 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
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/12—Parallel operation of dc generators with converters, e.g. with mercury-arc rectifier
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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
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
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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 disclosure relates to a power control apparatus and a power control method.
- Patent Document 1 and Non-Patent Document 1 disclose a system related to a system that converts DC power based on renewable energy such as wind power generation or solar power generation, or exchanges DC power between bases. Has been proposed.
- the present disclosure proposes a new and improved power control apparatus and power control method capable of realizing a system that can exchange DC power with a simple configuration and capable of building a scalable system.
- a reception unit that receives a power supply request from a cell that is connected to a first bus line that transmits DC power, and the reception unit that is connected to the first bus line that is received.
- a transmission unit that transmits a power supply request to a cell connected to the second bus line that transmits DC power, and a transmission to the cell connected to the second bus line Based on the information on the voltages of the first bus line and the second bus line, the power conversion between the first bus line and the second bus line is performed according to the response of the power supply request.
- a power control unit that controls the power control device.
- receiving a power supply request from a cell connected to the first bus line that transmits DC power and receiving from the cell connected to the received first bus line.
- the power supply request is transmitted to the cell connected to the second bus line transmitting DC power, and the power supply request transmitted to the cell connected to the second bus line.
- the power conversion between the first bus line and the second bus line is controlled based on information on the voltages of the first bus line and the second bus line according to the response of A power control method is provided.
- FIG. 6 is a sequence diagram illustrating an operation example of the power supply system 1 according to an embodiment of the present disclosure.
- FIG. 6 is a sequence diagram illustrating an operation example of the power supply system 1 according to an embodiment of the present disclosure.
- FIG. 1 is an explanatory diagram illustrating an overview of a power supply system according to an embodiment of the present disclosure.
- the outline of the power supply system according to the embodiment of the present disclosure will be described with reference to FIG.
- the power supply system 1 shown in FIG. 1 is configured such that each site, such as a region, a company, or a home, supplies DC power to another site, or DC power is supplied from another site. It is a power supply system that can communicate with each other.
- FIG. 1 shows cells 100a, 100b, 100c, 100d, and 100e.
- the cells 100a, 100b, 100d, and 100e are shown as ordinary homes, and the cell 100c is shown as a building.
- the cells 100a, 100b, and 100c are each connected by a bus line 202a, and the cells 100d and 100e are connected by a bus line 202b.
- a DC current flows through the bus lines 202a and 202b.
- Each of the cells 100a, 100b, 100c, 100d, and 100e is provided with a DC / DC converter 101a, 101b, 101c, 101d, and 101e that converts a DC voltage into another voltage.
- the DC / DC converters 101a, 101b, and 101c convert the voltage of the bus line inside the cells 100a, 100b, and 100c and the voltage of the bus line 202a, respectively.
- the DC / DC converters 101d and 101e convert the voltage of the bus line inside the cells 100d and 100e and the voltage of the bus line 202b, respectively.
- the cells 100a, 100b, 100c, 100d, and 100e are, for example, existing power grids (commercial power sources), and power generated by renewable energy such as wind power and sunlight.
- the power is supplied to a battery or an electronic device provided in each cell.
- FIG. 1 shows that a group including cells 100a, 100b, and 100c is configured as a cell 200a in an upper layer of each cell. Similarly, FIG. 1 shows that a group composed of cells 100d and 100e is configured as an upper layer cell 200b of each cell. Further, FIG. 1 shows another cell 200c. In the present embodiment, the cell 200c is provided with batteries 210a and 210b that store electric power.
- the cells 100a, 100b, and 100c are cells that exist within a range of several hundred meters to several kilometers, for example.
- the power supply system 1 may group cells within the range as the cell 200a as illustrated in FIG.
- the cells 100d and 100e are also cells that exist within a range of, for example, several hundred meters to several kilometers, and the power supply system 1 according to an embodiment of the present disclosure defines the cells within the range in FIG.
- the cells 200b may be collected.
- the distance between the cell 200a and the cell 200b may be longer than the distance between the cells included in the cell 200a, and may be, for example, several kilometers or more away.
- the cells 200a, 200b, and 200c are connected by a bus line 302, respectively.
- a DC current flows through the bus line 302.
- Each cell 200a, 200b, and 200c is provided with DC / DC converters 201a, 201b, and 201c that convert a DC voltage into another voltage.
- the DC / DC converters 201a, 201b, and 201c convert the voltages of the bus lines 202a, 202b, and 202c inside the cells 200a, 200b, and 200c and the voltage of the bus line 302, respectively.
- the cells 100a, 100b, 100c, 100d, and 100e each independently control power supply to an internal bus line. If each cell is likely to run out of power, each cell requests another cell connected to the same bus line to supply power. There are various cases where power shortage is likely to occur inside the cell, such as when power supply from commercial power supply is interrupted, or when the weather changes suddenly and power supply by solar power generation is not performed as scheduled. Factors can be considered.
- the cell 100a requests the other cells 100b and 100c connected to the bus line 202a to supply power.
- the cell 100a requests the other cells 100b and 100c to supply power through a communication line not shown in FIG.
- the cell 100a requests the DC / DC converter 201a to supply power in addition to the cells 100b and 100c.
- the cell 100b or 100c When the cell 100b or 100c receives a request for power supply from the cell 100a, the cell 100b or 100c determines whether or not power can be supplied and returns a response to the cell 100a regarding whether or not power can be supplied. If there is a cell to which power can be supplied, the cell 100a selects a cell to receive power supply, and replies that it accepts the power supply proposal from that cell, including other cells.
- the DC / DC converter 201a that has received the request for power supply from the cell 100a belongs to the same layer, that is, to the DC / DC converters 201b and 201c connected to the same bus line 302, the power from the cell 100a.
- Forward the request for supply of The DC / DC converters 201b and 201c transfer the power supply request from the cell 100a to the cells included in their own cells 200b and 200c, such as the cells 100d and 100e in the case of the cell 200b.
- the cells 100d and 100e that have received the power supply request from the cell 100a determine whether or not the power can be supplied, and return to the DC / DC converter 201b whether or not the power can be supplied.
- the DC / DC converter 201b transfers the responses from the cells 100d and 100e to the DC / DC converter 201a, and the DC / DC converter 201a transfers the responses from the cells 100d and 100e to the cell 100a.
- the cell 100b cannot supply power, but the cell 100c can supply power, the cell 100b cannot supply power, and the cell 100c can supply power. A message to that effect is returned to each cell 100a.
- the criteria for determining whether power can be supplied are not limited to specific criteria. For example, there are various factors such as the power usage status inside each cell, the remaining battery capacity status, and the power generation status of renewable energy. It can be determined in consideration.
- the cell 100a that has received a response from the cells 100b and 100c can grasp that power can be supplied from the cell 100c.
- the cell 100a accepts the power supply proposal from the cell 100c
- the cell 100a replies to the cells 100b and 100c and the DC / DC converter 201a that the power supply proposal from the cell 100c is accepted.
- the cell 100c supplies power to the cell 100a through the bus line 202a based on the response from the cell 100a.
- the power supply system 1 connects a cell 200a including cells 100a, 100b, and 100c to another cell 200b including a plurality of cells 100d and 100e via a bus line 302a. It is possible to realize transmission of DC power between cells over a long distance (for example, about several km or more).
- the power supply system 1 has a hierarchical structure as illustrated in FIG. 1, thereby enabling power supply within the same layer and power supply across layers. And the electric power supply system 1 which concerns on one Embodiment of this indication is realizable with a simple structure, and enables the scalable structure of a system.
- FIG. 2 is an explanatory diagram illustrating a configuration example of the power supply system 1 according to an embodiment of the present disclosure.
- a basic configuration example of the power supply system 1 according to an embodiment of the present disclosure will be described with reference to FIG.
- the power supply system 1 shown in FIG. 2 has a configuration in which two cells 100a and 100b are connected to a bus line 202 and a communication line 203.
- the cell 100a includes a DC / DC converter 101a and a control unit 104a
- the cell 100b includes a DC / DC converter 101b and a control unit 104b.
- the DC / DC converter 101a converts the voltage of the bus line inside the cell 100a and the voltage of the bus line 202.
- the DC / DC converter 101b converts the voltage of the bus line inside the cell 100b and the voltage of the bus line 202.
- the control unit 104a performs various controls in the cell 100a. For example, the power for requesting the supply of power through the communication line 203 to the other cell 100b connected to the bus line 202 when the control unit 104a is likely to run out of power inside the cell 100a. Send supply request.
- the control unit 104a controls voltage conversion by the DC / DC converter 101a. That is, the control unit 104a holds information on the voltage value of the bus line (not shown in FIG. 2) inside the cell 100a and the voltage value of the bus line 202 outside the cell 100a, The DC / DC converter 101a is controlled so that the conversion is performed.
- the control unit 104b performs the same control as the control unit 104a.
- the power supply system 1 is based on the configuration illustrated in FIG. 2, and the scalable construction of the system is achieved by increasing the number of cells in the same layer or by increasing the number of layers. Is possible.
- FIG. 3 is an explanatory diagram illustrating another configuration example of the power supply system 1 according to an embodiment of the present disclosure.
- FIG. 3 illustrates a configuration for connecting to an upper layer in addition to the basic configuration example of the power supply system 1 according to the embodiment of the present disclosure illustrated in FIG. 2.
- FIG. 2 illustrates a configuration example of the power supply system 1 according to an embodiment of the present disclosure.
- the power supply system 1 shown in FIG. 3 has a configuration in which N cells 100a, 100b,..., 100n are connected to a bus line 202a and a communication line 203a.
- the power supply system 1 shown in FIG. 3 shows that a group composed of N cells 100a, 100b,..., 100n is configured as an upper layer cell 200a of each cell. Yes.
- the cell 100a includes a DC / DC converter 101a, a control unit 104a, a battery 110a, an AC / DC converter 111a, a wind power generator 112a, and a device 113a.
- the DC / DC converter 101a, the battery 110a, the AC / DC converter 111a, the wind power generator 112a, and the device 113a are all connected to the bus line 102a.
- the functions of the DC / DC converter 101a and the control unit 104a are as described in the description of FIG.
- the battery 110a is a storage battery that can be charged and discharged, and may be composed of, for example, a lithium ion secondary battery or another secondary battery.
- AC power supplied from the AC / DC converter 111a and a commercial power supply (not shown) is converted to DC power, and the DC power is supplied to the bus line 102a.
- the wind power generator 112a is a power generator that converts wind power into electric power, and includes, for example, a windmill and a motor.
- the wind power generator 112a supplies the generated power (DC power) to the bus line 102a.
- the device 113a is various electronic devices that operate by receiving DC power supplied from the bus line 102a.
- control unit 104a may be configured to operate by receiving power supply from the bus line 102a.
- the cell 100b includes a DC / DC converter 101b, a control unit 104b, a battery 110b, a device 113b, a DC load 114b, and a PV charger 115b.
- the DC / DC converter 101b, the battery 110b, the device 113b, the DC load 114b, and the PV charger 115b are all connected to the bus line 102b.
- the functions of the DC / DC converter 101b and the control unit 104b are as described in the description of FIG.
- the functions of the battery 110b and the device 113b are as described in the description of the functions of the battery 110a and the device 113a.
- the DC load 114b is various loads that receive supply of direct current power from the bus line 102b and consume the power.
- the PV charger 115b is a charger that charges the battery 110b and the like with electric power (DC electric power) generated by photovoltaic power generation (PV; photovoltaic).
- control unit 104b may be configured to operate by receiving power supply from the bus line 102b.
- the cell 100n includes a DC / DC converter 101n, a control unit 104n, a battery 110n, an AC / DC converter 111n, a device 113n, and a PV charger 115n.
- the DC / DC converter 101n, the battery 110n, the AC / DC converter 111n, the device 113n, and the PV charger 115n are all connected to the bus line 102n.
- the functions of the DC / DC converter 101n and the control unit 104n are as described in the description of FIG.
- the functions of the battery 110n, the AC / DC converter 111n, and the device 113n are as described in the description of the functions of the battery 110a, the AC / DC converter 111a, and the device 113a.
- the function of the PV charger 115n is as described in the description of the function of the PV charger 115b.
- control unit 104n may be configured to operate by receiving power supply from the bus line 102n.
- the power supply system 1 shown in FIG. 3 communicates with another cell connected to the bus line 202a when power is likely to be insufficient in each cell 100a, 100b,.
- a power supply request is transmitted through the line 203a.
- a group composed of N cells 100a, 100b,..., 100n is configured as a cell 200a of an upper layer of each cell as shown in FIG. It has a converter 201a and a control unit 204a.
- the DC / DC converter 201a is connected to the bus line 202a, and the control unit 204a is connected to the communication line 203a.
- control unit 204a When the control unit 204a receives a power supply request from the control units 104a, 104b,... 104n included in each of the cells 100a, 100b,.
- the received power supply request is transferred to another layer, that is, another cell connected to the bus line 302a.
- control unit 204a controls voltage conversion by the DC / DC converter 201a. That is, the control unit 204a holds information on the voltage value of the bus line 202a that is the bus line inside the cell 200a and the voltage value of the bus line 302a that is the bus line outside the cell 200a, and The DC / DC converter 201a is controlled so that appropriate conversion is performed.
- the power supply system 1 When the power supply system 1 is configured as shown in FIG. 3, power is likely to be insufficient inside each cell 100 a, 100 b,..., 100 n, and a power supply request is output to another cell.
- the power supply request can be transferred to an upper layer. By transferring the power supply request to the upper layer, all the cells 100a, 100b,..., 100n included in the cell 200a in FIG. ,..., Even if it is not possible to meet the power supply request from 100n, there is a possibility that power can be supplied from another cell not included in the cell 200a through the bus line 302a.
- the control unit 104a can transmit, for example, information including a requested power amount, a time zone for requesting power supply, desired cost information, past power reception results, and the like as a power supply request.
- the response to the power supply request may include, for example, the amount of power that can be supplied, the time during which power can be transmitted, information on the cost of power, the past supply record to the device that requested the power supply, and the like.
- the rated voltage of the bus line is assumed to increase in order from the lower layer to the upper layer.
- the rated voltage of the bus line 102a is 80V
- the rated voltage of the bus line 102b is 120V
- the rated voltage of the bus line 102n is 140V.
- the rated voltage of the bus line 202a can be set to 200V, for example
- the rated voltage of the bus line 302a can be set to 300V, for example.
- the value of the rated voltage described above is only an example.
- each cell shown in FIG. 3 may have a configuration in which power can be supplied from an existing power grid.
- FIG. 4 is an explanatory diagram illustrating another configuration example of the power supply system 1 according to an embodiment of the present disclosure.
- FIG. 4 illustrates a configuration including another cell connected to the bus line 302a in addition to the configuration example of the power supply system 1 according to the embodiment of the present disclosure illustrated in FIG.
- FIG. 4 illustrates a configuration including another cell connected to the bus line 302a in addition to the configuration example of the power supply system 1 according to the embodiment of the present disclosure illustrated in FIG.
- FIG. 4 illustrates a configuration including another cell connected to the bus line 302a in addition to the configuration example of the power supply system 1 according to the embodiment of the present disclosure illustrated in FIG.
- FIG. 4 illustrates a configuration including another cell connected to the bus line 302a in addition to the configuration example of the power supply system 1 according to the embodiment of the present disclosure illustrated in FIG.
- FIG. 4 illustrates a configuration including another cell connected to the bus line 302a in addition to the configuration example of the power supply system 1 according to the embodiment of the present disclosure illustrated in FIG.
- cells 200a, 200b, and 200c are connected to a bus line 302a and a communication line 303a.
- the cell 200a includes a DC / DC converter 201a and a control unit 204a.
- the cells 200a, 100b, and 100c in the lowest layer are connected to the inside of the cell 200a via the bus line 202a and the communication line 203a.
- the cell 200b includes a DC / DC converter 201b and a control unit 204b.
- the cells 200d and 100e in the lowest layer are connected to the inside of the cell 200b via the bus line 202b and the communication line 203b.
- the cell 200c includes a DC / DC converter 201c and a control unit 204c.
- a battery 210c is connected to the inside of the cell 200c through a bus line 203c.
- the lowest layer cells 100a, 100b, 100c, 100d, and 100e in FIG. 4 only the DC / DC converter and the control unit are illustrated, but the lowest layer cells 100a, 100b, 100c, 100d, and 100e are illustrated. As shown in FIG. 3, for example, various devices and elements may be connected to the bus line.
- the control unit 104a included in the cell 100a transmits a power supply request to the other cells 100b and 100c and the control unit 204a through the communication line 203a.
- the control unit 104b of the other cell 100b and the control unit 104c of the cell 100c consider the internal power status, determine whether or not power can be supplied to the cell 100a, and return whether or not power can be supplied to the control unit 104a.
- control unit 204a that has received the power supply request from the control unit 104a transfers the request to the control units 204b and 204c of the other cells 200b and 200c in the same layer through the communication line 303a.
- the control unit 204a may transfer the power supply request in a state in which it is concealed that the power supply request is transmitted from the control unit 104a. That is, since power is insufficient in the cell 200a, only information indicating that power is requested may be transmitted from the control unit 204a to the control units 204b and 204c.
- the control unit 204b that has received the request transferred from the control unit 204a transmits the power supply request transferred from the control unit 204a to the control units 104d and 104e of the cells 100d and 100e included in the cell 200b.
- the control units 104d and 104e determine whether power can be supplied to the cell 200a (or the cell 100a) in consideration of the internal power status, and return whether the power can be supplied to the control unit 204b. If there is any lower layer cell that can supply power, the control unit 204b replies that the power can be supplied to the control unit 204a. If so, the control unit 204a is informed that power cannot be supplied.
- control unit 204c that has received the request transferred from the control unit 204a determines whether power can be supplied to the cell 200a (or the cell 100a) in consideration of the storage state of the battery 210c included in the cell 200c. Then, the controller 204a is returned as to whether power supply is possible.
- control unit 204a When receiving a response from the control units 204b and 204c, the control unit 204a transmits to the control unit 104a that power can be supplied if there is a response indicating that power can be supplied. On the other hand, if there is no response that power supply is possible, the control unit 204a transmits to the control unit 104a that power supply is impossible.
- the control unit 104a receives the response from the control units 104b, 104c, and 204a. If there is a cell that can supply power, the control unit 104a selects a cell to which power is supplied and supplies power to the control unit of the cell. Request. For example, when there is a reply from the control unit 104b that power can be supplied, the control unit 104a requests the control unit 104b to supply power. Further, when the control unit 104a requests the control unit 104b to supply power, the control unit 104a also transmits to the other control units 104c and 204a that the proposal of power supply from the control unit 104b is accepted.
- the control unit 104b that has received the request from the control unit 104a controls the DC / DC converter 101b and outputs power to the bus line 202a. Then, the control unit 104a receives the power output to the bus line 202a by controlling the DC / DC converter 101a.
- the power supply system 1 has a configuration as illustrated, and performs an operation as described above, thereby achieving efficient power between cells while having a simple configuration. Supply can be realized.
- movement at the time of the electric power supply straddling the upper layer in the electric power supply system 1 which concerns on one Embodiment of this indication is explained in full detail behind.
- the DC voltage value can be set independently in each cell in the lowest layer. However, the number of voltages that can be stepped down by the DC / DC converter 201a may be limited, and the control becomes complicated. Therefore, the number of cells in the lowest layer is not increased without limit, but one cell 200a It is desirable to place a limit on the number of cells in the lowest layer included.
- control part 204a can hold
- the control unit 204a allows the number of connections in the cell in the lowest layer connected to the bus line 202a to be the performance aspect of the DC / DC converter 201a. If the limit is reached, it is possible to refuse connection of a cell in a new lowest layer, or to prevent transfer to a higher layer even when a power supply request is received.
- a cell 200a including a plurality of cells 100a, 100b, and 100c is connected to another cell 200b including a plurality of cells 100d and 100e by a bus line 302a. It is possible to realize transmission of DC power between cells of several kilometers or more). For example, the loss during power transmission between the cells 200a and 200b through the bus line 302a can be reduced by increasing the rated voltage of the bus line 302a and reducing the amount of current flowing through the bus line 302a.
- DC power can be exchanged between the cell 100a included in the cell 200a and the cell 100d included in the cell 200b with less loss.
- FIG. 5 is an explanatory diagram illustrating another configuration example of the power supply system 1 according to an embodiment of the present disclosure, and illustrates an example in which two cells 100a and 100b are connected via the cell 200a. It is explanatory drawing.
- the two cells 100a and 100b are connected via the cell 200a, so that even if the distance between the cells 100a and 100b is very long, for example, via the cell 200a.
- a stable power supply can be realized.
- FIG. 6 is an explanatory diagram illustrating a configuration example of a control unit included in each cell of the power supply system 1 according to an embodiment of the present disclosure.
- a configuration example of the control unit 104a included in the cell 100a will be described.
- a configuration example of the control unit 104a included in the cell 100a in the power supply system 1 according to an embodiment of the present disclosure will be described with reference to FIG.
- control unit 104a includes a determination unit 151, an information transmission unit 152, an information reception unit 153, and a power control unit 154.
- the determination unit 151 monitors the state of power inside the cell 100a and determines whether or not power is likely to be insufficient inside the cell 100a. For example, the determination unit 151 determines whether or not power is likely to be insufficient in the cell 100a depending on whether or not the power supply from the commercial power supply is interrupted and the amount of power stored in the battery 110a is reduced to a predetermined amount or less.
- the determination unit 151 monitors the state of power inside the cell 100a, and when it is determined that power is likely to be insufficient inside the cell 100a, the determination unit 151 operates to transmit a power supply request from the information transmission unit 152 through the communication line 203a.
- the determination unit 151 determines whether or not power can be supplied to the device that transmitted the power supply request.
- the information transmission unit 152 operates as a power supply candidate through the communication line 203a.
- the information transmission unit 152 transmits various information related to power transmission and reception through the communication line 203a.
- the information receiving unit 153 receives various information related to power transmission and reception through the communication line 203a.
- the information transmission unit 152 passes to the other cell (cells 100b,..., 100n in the example of FIG. 3) through the communication line 203a. Send a power request.
- the information transmission unit 152 selects a cell that receives power supply in accordance with permission of power supply from other cells (cells 100b,..., 100n in the example of FIG. 3), and controls the selected cell. A message to the effect that the user has been selected as the power supplier is transmitted through the communication line 203a.
- the information receiving unit 153 receives a power request transmitted when it is determined that power is likely to be insufficient inside another cell.
- the information transmission unit 152 transmits information for replying to the apparatus as a power supply candidate. To do.
- the information transmission unit 152 may include information such as a charge at the time of power supply, a time until the start of supply, a supplyable time, a past supply record to the apparatus that requested the power supply, etc. good.
- the power request transmitted when it is determined that power is likely to be deficient internally includes, for example, the amount of power requested, the time period for requesting power supply, information on the desired cost, and receipt of past power. Achievements etc. may be included.
- the response to the power supply may include, for example, the amount of power that can be supplied, the time during which power can be transmitted, information on the cost of power, the past supply record to the device that requested the power supply, and the like.
- Each cell can determine a power supply source, a supply destination, a supply time, and the like by exchanging such information through a communication line when power is exchanged through a bus line.
- the information transmitted by the information transmitting unit 152 and the information received by the information receiving unit 153 may be encrypted.
- Information encryption may be performed by the information transmission unit 152, and decryption of the encrypted information may be performed by the information reception unit 153.
- an encryption method such as a common key encryption method or a public key encryption method can be used.
- the information transmitted by the information transmitting unit 152 and the information received by the information receiving unit 153 are encrypted, inconvenience due to information eavesdropping by a malicious third party can be avoided.
- authentication processing Prior to transmission of information from the information transmission unit 152 and reception of information from the information reception unit 153, authentication processing may be performed in advance with the other party. By performing authentication processing with the other party in advance, inconvenience due to impersonation or the like can be avoided. Needless to say, the encryption method and the authentication method are not limited to specific methods.
- the power control unit 154 controls power transmission from the DC / DC converter 101a through the bus line and power reception by the DC / DC converter 101a. Control of power transmission / reception by the power control unit 154 is performed based on information transmitted by the information transmission unit 152 and information received by the information reception unit 153.
- the power control unit 154 uses information on the rated voltage of the bus line 102a inside the cell 100a and information on the rated voltage of the bus line 202a outside the cell 100a when controlling the DC / DC converter 101a.
- the power control unit 154 determines whether power can be supplied when power supply is transmitted from another power supply device, the amount of power stored in the battery, and power in the cell 100a in the near future. You may judge using information, such as consumption prediction.
- the control unit included in each cell has a configuration as shown in FIG. 6 so that it can grasp the power state inside the cell and send / receive information on power supply to / from other cells. become.
- the control unit included in each cell may transmit / receive information on power supply to / from the control unit belonging to the upper layer, and execute power transfer between layers. It becomes possible.
- FIG. 6 shows a configuration example of the control unit 104a included in the cell 100a belonging to the lowest layer, but the control unit included in a cell belonging to a layer above the lowest layer is also shown in FIG. It may have the same configuration as However, for cells belonging to layers above the lowest layer, some cells may not need to determine whether power is likely to be insufficient within the cell. For example, the cell 200a shown in FIG. 3 and FIG. 4 does not necessarily need to determine the possibility of power shortage in the cell 200a itself. In that case, the determination unit 151 illustrated in FIG. 6 may not be included in the control unit 204a of the cell 200a.
- FIG. 7 is a sequence diagram illustrating an operation example of the power supply system 1 according to an embodiment of the present disclosure.
- an operation example of the power supply system 1 according to an embodiment of the present disclosure will be described with reference to FIG.
- FIG. 7 shows, for example, that the control unit 104a of the cell 100a supplies power to other cells when the power supply system 1 according to an embodiment of the present disclosure has the configuration shown in FIG. It is an operation example when a request is transmitted and the cell 100a receives power supply from another cell.
- the control unit 104a included in the cell 100a transmits a power supply request to the other cells 100b and 100c and the control unit 204a through the communication line 203a (step S1). S101). That is, the control unit 104a broadcasts a power supply request to other control units connected to the communication line 203a.
- the determination unit 151 illustrated in FIG. 6 determines whether or not power is likely to be insufficient in the cell 100a, and the information transmission unit 152 performs transmission of the power supply request, for example.
- the control unit 104b of the cell 100b and the control unit 104c of the cell 100c each receive the power supply request transmitted from the control unit 104a, for example, by the information reception unit 153 illustrated in FIG. Then, the control units 104b and 104c consider the power status inside each of the cells 100b and 100c, determine whether or not power can be supplied to the cell 100a, and return whether or not power can be supplied to the control unit 104a (step S102). , S103).
- control unit 104b responds to the control unit 104a that power can be supplied to the cell 100a
- control unit 104c responds to the control unit 104a that power supply to the cell 100a is impossible.
- An example is shown.
- the control unit 204a of the cell 200a belonging to the upper layer of the cell 100a supplies power to the control units 204b and 204c of the other cells 200b and 200c in the same layer.
- a request is transmitted (step S104).
- the control unit 204a transmits the power supply request to the control units 204b and 204c
- the control unit 204a transfers the power supply request in a state of concealing that the power supply request is transmitted from the control unit 104a. Also good. That is, since power is insufficient in the cell 200a, only information indicating that power is requested may be transmitted from the control unit 204a to the control units 204b and 204c.
- the control units 204b and 200c that have received the request transferred from the control unit 204a are transferred to the control units (for example, the control units 104d and 104e) of the cells (for example, the cells 100d and 100e) included in the cells 200b and 200c, respectively.
- the power supply request transferred from the control unit 204a is transmitted.
- the control units 104d and 104e determine whether power can be supplied to the cell 200a (or the cell 100a) in consideration of the internal power status, and return whether the power can be supplied to the control unit 204b.
- the control units 204b and 204c receive the response from the cell in the lower layer and transmit the response to the control unit 204a (steps S105 and S106). For example, if there is a cell in the lower layer that can supply power, the control unit 204b replies that the power can be supplied to the control unit 204a, and power cannot be supplied to all the cells in the lower layer. If so, the control unit 204a is informed that power cannot be supplied.
- control unit 204b replies to the control unit 204a that power can be supplied to the cell 200a
- control unit 204c replies to the control unit 204a that power cannot be supplied to the cell 200a.
- An example is shown.
- control unit 204a When the control unit 204a receives a response from the control unit 204b or 204c, the control unit 204a transmits a response to the power supply request to the control unit 104a based on the response from the control unit 204b or 204c (step S107). If there is a response indicating that even one power supply is possible, the control unit 204a transmits to the control unit 104a that the power supply is possible. On the other hand, if there is no response that power supply is possible, the control unit 204a transmits to the control unit 104a that power supply is impossible. In the example illustrated in FIG. 7, the control unit 204b replies to the control unit 204a that power can be supplied to the cell 200a, and thus the control unit 204a indicates that the power can be supplied. Send to.
- the control unit 104a that has received the response from the control units 104b, 104c, and 204a selects a cell that requests power supply based on the response, and transmits the selection result to the other cells 100b and 100c and the control unit 204a. (Step S108). That is, the control unit 104a broadcasts the selection result to other control units connected to the communication line 203a. In the example illustrated in FIG. 7, the control unit 104a transmits information indicating that the proposal of power supply from the cell 100c is accepted.
- control unit 104c Since the control unit 104c knows that the cell 100c is selected as the power supply source by receiving the selection result transmitted from the control unit 104a, the control unit 104c controls the DC / DC converter 101c to control the cell 100c through the bus line 202a. Starts to supply power to the cell 100a (step S109).
- the cell 100c determines whether another cell connected to the bus line 202a is not supplying power through the bus line 202a. If another cell is not supplying power through the bus line 202a, the cell 100c notifies the other cell connected to the bus line 202a that the control right of the bus line 202a has been acquired. Good. By determining the presence or absence of the bus line control right, each cell can be controlled so that a voltage exceeding the rating is not applied to the bus line.
- FIG. 7 shows the change in the voltage value of the bus line 202a at the right end.
- step S109 when the control unit 104c controls the DC / DC converter 101c and starts supplying power from the cell 100c to the cell 100a through the bus line 202a, the voltage of the bus line 202a is, for example, the rated voltage of the bus line 202a. To rise.
- the power supply time from the cell 100c to the cell 100a can be set based on the supply time included in the power supply request transmitted by the control unit 104a in step S101, for example.
- the control unit 104c transmits to the control unit 104a a message indicating that the power supply from the cell 100c is to be stopped (step S110).
- step S110 when the control unit 104c transmits to the control unit 104a that the power supply from the cell 100c is stopped, the voltage of the bus line 202a gradually decreases as shown in FIG.
- the power supply system 1 can perform the above-described operation by a control unit included in each cell, so that DC power can be exchanged between cells in the same layer.
- the operation example shown in FIG. 7 is a case where power is supplied from the cell 100c included in the cell 200a, which is the same layer, when the control unit 104a transmits a power supply request.
- the control unit 104a transmits a power supply request, naturally, all the cells included in the cell 200a that are in the same layer may not be able to supply power.
- the cell 200a transmits a power supply request to another cell belonging to the same layer as the cell 200a, and receives power from another cell belonging to the same layer, whereby the power from the control unit 104a is received. In response to the supply request, power is supplied to the cell 100a.
- FIG. 8 is a sequence diagram illustrating an operation example of the power supply system 1 according to an embodiment of the present disclosure.
- an operation example of the power supply system 1 according to an embodiment of the present disclosure will be described with reference to FIG.
- FIG. 8 illustrates the control unit 104a of the cell 100a when the power supply system 1 according to an embodiment of the present disclosure has the configuration illustrated in FIG. 4, for example, as in the operation example illustrated in FIG. This is an operation example when a power supply request is transmitted to another cell and the cell 100a receives power supply from the other cell.
- control unit 104a included in the cell 100a transmits a power supply request to the other cells 100b and 100c and the control unit 204a through the communication line 203a (step S1). S111). That is, the control unit 104a broadcasts a power supply request to other control units connected to the communication line 203a.
- the control unit 104b of the cell 100b and the control unit 104c of the cell 100c each receive the power supply request transmitted from the control unit 104a, for example, by the information reception unit 153 illustrated in FIG. Then, the control units 104b and 104c consider the power status inside each of the cells 100b and 100c, determine whether or not power can be supplied to the cell 100a, and return whether or not power can be supplied to the control unit 104a (step S112). , S113).
- FIG. 8 shows an example in which both the control units 104b and 104c return a response to the control unit 104a that power cannot be supplied to the cell 100a.
- the control unit 204a of the cell 200a belonging to the upper layer of the cell 100a supplies power to the control units 204b and 204c of the other cells 200b and 200c in the same layer.
- a request is transmitted (step S114).
- the control unit 204a transmits the power supply request to the control units 204b and 204c
- the control unit 204a transfers the power supply request in a state of concealing that the power supply request is transmitted from the control unit 104a. Also good. That is, since power is insufficient in the cell 200a, only information indicating that power is requested may be transmitted from the control unit 204a to the control units 204b and 204c.
- the control units 204b and 200c that have received the request transferred from the control unit 204a are transferred to the control units (for example, the control units 104d and 104e) of the cells (for example, the cells 100d and 100e) included in the cells 200b and 200c, respectively.
- the power supply request transferred from the control unit 204a is transmitted.
- the control units 104d and 104e determine whether power can be supplied to the cell 200a (or the cell 100a) in consideration of the internal power status, and return whether the power can be supplied to the control unit 204b.
- the control unit 204b replies to the control unit 204a that power can be supplied to the cell 200a
- the control unit 204c replies to the control unit 204a that power cannot be supplied to the cell 200a.
- An example is shown.
- control unit 204a When the control unit 204a receives a response from the control unit 204b or 204c, the control unit 204a transmits a response to the power supply request to the control unit 104a based on the response from the control unit 204b or 204c (step S117). If there is a response indicating that even one power supply is possible, the control unit 204a transmits to the control unit 104a that the power supply is possible. On the other hand, if there is no response that power supply is possible, the control unit 204a transmits to the control unit 104a that power supply is impossible. In the example illustrated in FIG. 8, the control unit 204b replies to the control unit 204a that power can be supplied to the cell 200a. Therefore, the control unit 204a indicates that the power can be supplied. Send to.
- the control unit 104a that has received the response from the control units 104b, 104c, and 204a selects a cell that requests power supply based on the response, and transmits the selection result to the other cells 100b and 100c and the control unit 204a. (Step S118). That is, the control unit 104a broadcasts the selection result to other control units connected to the communication line 203a. In the example illustrated in FIG. 8, the control unit 104 a transmits information indicating that the proposal for power supply from the control unit 204 a is accepted.
- the control unit 204a knows that the DC / DC converter 201a is selected as the power supply source by receiving the selection result transmitted from the control unit 104a. However, in order for the DC / DC converter 201a to supply power to the cell 100a, the power is output to the bus line 302a from the cell 200b including the control unit 204b that has answered that power can be supplied in step S115. There is a need. Accordingly, when receiving the selection result transmitted from the control unit 104a, the control unit 204a broadcasts the selection result to the control units 204b and 200c (step S119). In the example illustrated in FIG. 8, the control unit 204 a transmits information indicating that the proposal for power supply from the control unit 204 b is accepted.
- control unit 204b Since the control unit 204b knows that the cell 200b is selected as the power supply source by receiving the selection result transmitted from the control unit 204a, the control unit 204b controls the DC / DC converter 201b to control the cell 200b through the bus line 302a. Starts to supply power to the cell 200a (step S210).
- FIG. 8 shows changes in the voltage values of the bus line 202a and the bus line 302a at the right end.
- step S210 when the control unit 204b controls the DC / DC converter 201b to start supplying power from the cell 200b to the cell 200a through the bus line 302a, the voltage of the bus line 302a is, for example, the rated voltage of the bus line 302a.
- the DC / DC converter 201a supplies the power supplied from the cell 200b to the bus line 202a of the cell 200a by dropping the voltage of the power supplied to the bus line 302a to the rated voltage of the bus line 202a.
- the DC / DC converter 101a of the cell 100a receives power supplied to the bus line 202a and drops the voltage to the rated voltage of the bus line 102a of the cell 100a.
- the power supply time from the cell 200b to the cell 200a can be set based on the supply time included in the power supply request transmitted by the control unit 104a in step S111, for example.
- the control unit 204b transmits to the control unit 204a a message indicating that the power supply from the cell 200b is to be stopped (step S121).
- the control unit 204a receives from the control unit 204b that the power supply from the cell 200b is stopped, the control unit 204a stops the power supply from the cell 200b toward the control unit 104a of the cell 100a that is receiving power. Is transmitted (step S122).
- the power supply system 1 allows the control unit included in each cell to perform the above-described operation, so that direct-current power can be exchanged between the cells across the layers. .
- the power supply system 1 transmits a power supply request from a cell when power is required inside the cell, for example, when power shortage is assumed inside the cell. Is done.
- a power supply request from a cell is transmitted to a cell in the same layer or a cell in an upper layer. Then, the cell that can supply power replies that power can be supplied to the cell that transmitted the power supply request, and supplies the requested power to the cell that transmitted the power supply request.
- the power supply system 1 by having a hierarchical structure, a power supply system that enables power supply within the same layer and power supply across layers, and this power supply A control unit for controlling power supply in the system 1 is provided.
- the power supply system 1 according to an embodiment of the present disclosure can be realized with a simple configuration and enables a scalable construction of the system.
- the power supply system 1 according to an embodiment of the present disclosure can coexist with an existing power grid that supplies AC power.
- the bus line for supplying DC power is provided independently of the existing power grid, and the use of the power supply system 1 according to an embodiment of the present disclosure reduces the dependence on the existing power grid. It becomes possible.
- the power supply system 1 according to an embodiment of the present disclosure is provided independently of the existing power grid, it can of course be used in an area where the existing power grid does not exist.
- each step in the processing executed by each device in this specification does not necessarily have to be processed in chronological order in the order described as a sequence diagram or flowchart.
- each step in the processing executed by each device may be processed in an order different from the order described as the flowchart, or may be processed in parallel.
- the communication line may be wired or wireless.
- the communication line may be configured by a so-called mesh network.
- the case where the communication line and the bus line are different from each other is shown, but the present disclosure is not limited to such an example.
- information regarding transmission and reception of DC power may be superimposed on the bus line. By superimposing information on power transmission and reception on the bus line, the communication line can be omitted from the power supply system.
- a receiving unit that receives a power supply request from a cell connected to a first bus line that transmits DC power; Transmission for transmitting a power supply request to a cell connected to a second bus line transmitting DC power in response to a power supply request received from the cell connected to the first bus line by the receiving unit And In response to a power supply request transmitted to a cell connected to the second bus line, power conversion between the first bus line and the second bus line is performed by the first bus line and the second bus line.
- a power control unit for controlling based on information on the voltage of each of the second bus lines; A power control device.
- the power control unit controls power conversion between the first bus line and the second bus line based on information on the number of cells connected to the first bus line; The power control apparatus according to (1).
- the power control unit controls conversion of power between the first bus line and the second bus line based on information on cells connected to the second bus line.
- the power control unit supplies a power supply request received from the cell connected to the first bus line to the cell connected to the second bus line as its own power supply request.
- the power control device according to any one of (1) to (3), wherein the request is transmitted to the transmission unit.
- the power control unit When the power control unit receives a response to the power supply request transmitted to the cell connected to the second bus line from the cell, the power control unit transmits the power supply request connected to the first bus line to the cell that transmitted the power supply request.
- the power control apparatus according to any one of (1) to (4), wherein the response is transmitted to the transmission unit.
- (6) The power control apparatus according to any one of (1) to (5), wherein a rated voltage of the first bus line is lower than a rated voltage of the second bus line.
Abstract
Description
<1.本開示の一実施形態>
[1.1.システムの概要]
[1.2.システムの構成例]
[1.3.システムの動作例]
<2.まとめ>
[1.1.システムの概要]
まず、本開示の一実施形態に係る、交流電力を供給し合う電力供給システムの概要について説明する。図1は、本開示の一実施形態に係る電力供給システムの概要を示す説明図である。以下、図1を用いて、本開示の一実施形態に係る電力供給システムの概要について説明する。
まず簡単な構成例によって本開示の一実施形態に係る電力供給システム1の具体的な構成例を説明する。図2は、本開示の一実施形態に係る電力供給システム1の構成例を示す説明図である。以下、図2を用いて本開示の一実施形態に係る電力供給システム1の基本的な構成例について説明する。
続いて、本開示の一実施形態に係る電力供給システム1の動作例について説明する。図7は、本開示の一実施形態に係る電力供給システム1の動作例を示すシーケンス図である。以下、図7を用いて本開示の一実施形態に係る電力供給システム1の動作例について説明する。
本開示の一実施形態に係る電力供給システム1は、例えば、セルの内部で電力不足が想定される場合等の、セルの内部で電力が必要になる場合に、そのセルから電力供給要求が送信される。セルからの電力供給要求は、同一レイヤ内のセルや、上位レイヤのセルに伝送される。そして電力供給が可能なセルは、その電力供給要求を送信したセルに対して電力供給が可能である旨を回答し、要求された電力を、その電力供給要求を送信したセルに供給する。
(1)
直流の電力を伝送する第1のバスラインに接続されるセルからの電力供給要求を受信する受信部と、
前記受信部が受信した前記第1のバスラインに接続されるセルからの電力供給要求に応じて、直流の電力を伝送する第2のバスラインに接続されるセルへ電力供給要求を送信する送信部と、
前記第2のバスラインに接続されるセルに送信した電力供給要求の応答によって、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を、前記第1のバスライン及び前記第2のバスラインそれぞれの電圧に関する情報に基づいて制御する電力制御部と、
を備える、電力制御装置。
(2)
前記電力制御部は、前記第1のバスラインに接続されるセルの数の情報に基づいて、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を制御する、前記(1)に記載の電力制御装置。
(3)
前記電力制御部は、前記第2のバスラインに接続されるセルの情報に基づいて、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を制御する、前記(1)または(2)に記載の電力制御装置。
(4)
前記電力制御部は、前記受信部が受信した前記第1のバスラインに接続されるセルからの電力供給要求を、自らの電力供給要求として前記第2のバスラインに接続されるセルへ電力供給要求を前記送信部に送信させる、前記(1)~(3)のいずれかに記載の電力制御装置。
(5)
前記電力制御部は、前記第2のバスラインに接続されるセルへ送信した電力供給要求に対する応答を該セルから受信すると、前記第1のバスラインに接続される電力供給要求を送信したセルに対して該応答を前記送信部に送信させる、前記(1)~(4)のいずれかに記載の電力制御装置。
(6)
前記第1のバスラインの定格電圧は、前記第2のバスラインの定格電圧より低い、前記(1)~(5)のいずれかに記載の電力制御装置。
(7)
前記第1のバスラインの定格電圧は、前記第2のバスラインの定格電圧より高い、前記(1)~(5)のいずれかに記載の電力制御装置。
(8)
直流の電力を伝送する第1のバスラインに接続されるセルからの電力供給要求を受信することと、
前記受信した前記第1のバスラインに接続されるセルからの電力供給要求に応じて、直流の電力を伝送する第2のバスラインに接続されるセルへ電力供給要求を送信することと、
前記第2のバスラインに接続されるセルに送信した電力供給要求の応答によって、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を、前記第1のバスライン及び前記第2のバスラインそれぞれの電圧に関する情報に基づいて制御することと、
を備える、電力制御方法。
100a セル
101a DC/DCコンバータ
102a バスライン
103a 通信回線
104a 制御部
Claims (8)
- 直流の電力を伝送する第1のバスラインに接続されるセルからの電力供給要求を受信する受信部と、
前記受信部が受信した前記第1のバスラインに接続されるセルからの電力供給要求に応じて、直流の電力を伝送する第2のバスラインに接続されるセルへ電力供給要求を送信する送信部と、
前記第2のバスラインに接続されるセルに送信した電力供給要求の応答によって、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を、前記第1のバスライン及び前記第2のバスラインそれぞれの電圧に関する情報に基づいて制御する電力制御部と、
を備える、電力制御装置。 - 前記電力制御部は、前記第1のバスラインに接続されるセルの数の情報に基づいて、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を制御する、請求項1に記載の電力制御装置。
- 前記電力制御部は、前記第2のバスラインに接続されるセルの情報に基づいて、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を制御する、請求項1に記載の電力制御装置。
- 前記電力制御部は、前記受信部が受信した前記第1のバスラインに接続されるセルからの電力供給要求を、自らの電力供給要求として前記第2のバスラインに接続されるセルへ電力供給要求を前記送信部に送信させる、請求項1に記載の電力制御装置。
- 前記電力制御部は、前記第2のバスラインに接続されるセルへ送信した電力供給要求に対する応答を該セルから受信すると、前記第1のバスラインに接続される電力供給要求を送信したセルに対して該応答を前記送信部に送信させる、請求項1に記載の電力制御装置。
- 前記第1のバスラインの定格電圧は、前記第2のバスラインの定格電圧より低い、請求項1に記載の電力制御装置。
- 前記第1のバスラインの定格電圧は、前記第2のバスラインの定格電圧より高い、請求項1に記載の電力制御装置。
- 直流の電力を伝送する第1のバスラインに接続されるセルからの電力供給要求を受信することと、
前記受信した前記第1のバスラインに接続されるセルからの電力供給要求に応じて、直流の電力を伝送する第2のバスラインに接続されるセルへ電力供給要求を送信することと、
前記第2のバスラインに接続されるセルに送信した電力供給要求の応答によって、前記第1のバスラインと前記第2のバスラインとの間の電力の変換を、前記第1のバスライン及び前記第2のバスラインそれぞれの電圧に関する情報に基づいて制御することと、
を備える、電力制御方法。
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US15/108,706 US20160329744A1 (en) | 2014-01-08 | 2014-12-25 | Power control device and power control method |
JP2015556769A JP6365550B2 (ja) | 2014-01-08 | 2014-12-25 | 電力制御装置及び電力制御方法 |
EP14877716.2A EP3093951A4 (en) | 2014-01-08 | 2014-12-25 | Power control device and power control method |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019161706A (ja) * | 2018-03-07 | 2019-09-19 | 日新電機株式会社 | 電力融通システム |
JP2021197766A (ja) * | 2020-06-10 | 2021-12-27 | 古河電気工業株式会社 | 電力ネットワーク |
WO2024034194A1 (ja) * | 2022-08-09 | 2024-02-15 | 株式会社フジタ | 電力制御システム |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6237514B2 (ja) | 2014-07-17 | 2017-11-29 | ソニー株式会社 | 送受電制御装置、送受電制御方法及び送受電制御システム |
JP6248859B2 (ja) | 2014-08-08 | 2017-12-20 | ソニー株式会社 | 電力供給装置、電力供給方法及び電力供給システム |
JP6369279B2 (ja) * | 2014-10-15 | 2018-08-08 | ソニー株式会社 | 電力経路情報生成装置、電力経路検出方法及びコンピュータプログラム |
JP6880740B2 (ja) * | 2014-11-04 | 2021-06-02 | ソニーグループ株式会社 | 直流電力制御装置、直流電力制御方法及び直流電力制御システム |
US10998754B2 (en) | 2015-01-30 | 2021-05-04 | Sony Corporation | Device and method for controlling transfer of DC power between nodes |
WO2016203898A1 (ja) | 2015-06-16 | 2016-12-22 | ソニー株式会社 | 送受電制御装置、送受電制御方法、コンピュータプログラム及び入出力制御装置 |
CN108270233B (zh) * | 2016-12-30 | 2020-03-24 | 北京金风科创风电设备有限公司 | 多电源输入系统及其启动方法 |
CN109274087A (zh) * | 2018-10-12 | 2019-01-25 | 珠海格力电器股份有限公司 | 直流家居用电系统及基于该系统的家用电器的接线方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011061970A (ja) * | 2009-09-10 | 2011-03-24 | Rikiya Abe | 多端子型非同期連系装置、電力機器制御端末装置と電力ネットワークシステムおよびその制御方法 |
JP2012060760A (ja) * | 2010-09-08 | 2012-03-22 | Sekisui Chem Co Ltd | 地域内電力融通システム |
US20120119586A1 (en) | 2010-11-11 | 2012-05-17 | Carralero Michael A | Reconfigurable Microgrid Direct Current Interface |
JP2013247792A (ja) * | 2012-05-28 | 2013-12-09 | Hitachi Ltd | 電力管理装置、電力管理システム、及び電力管理方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008047400A1 (en) * | 2006-10-16 | 2008-04-24 | Vpec, Inc. | Electric power system |
US8401708B2 (en) * | 2007-03-26 | 2013-03-19 | Vpec, Inc. | Electric power system |
JP4683034B2 (ja) * | 2007-10-31 | 2011-05-11 | ソニー株式会社 | 電力供給システム、モニター装置、モニター方法およびコンピュータプログラム |
DE102009040091A1 (de) * | 2009-09-04 | 2011-03-10 | Voltwerk Electronics Gmbh | Inseleinheit eines Inselenergienetzes zum Kommunizieren von Energieanfragen mit einer weiteren Inseleinheit |
US8970176B2 (en) * | 2010-11-15 | 2015-03-03 | Bloom Energy Corporation | DC micro-grid |
DE102012101799A1 (de) * | 2012-03-02 | 2013-09-05 | ropa development GmbH | Netzinfrastrukturkomponente, Verbundsystem mit einer Mehrzahl von Netzinfrastrukturkomponenten sowie Verwendung des Verbundsystems |
-
2014
- 2014-12-25 WO PCT/JP2014/084290 patent/WO2015105006A1/ja active Application Filing
- 2014-12-25 JP JP2015556769A patent/JP6365550B2/ja active Active
- 2014-12-25 EP EP14877716.2A patent/EP3093951A4/en not_active Withdrawn
- 2014-12-25 US US15/108,706 patent/US20160329744A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011061970A (ja) * | 2009-09-10 | 2011-03-24 | Rikiya Abe | 多端子型非同期連系装置、電力機器制御端末装置と電力ネットワークシステムおよびその制御方法 |
JP2012060760A (ja) * | 2010-09-08 | 2012-03-22 | Sekisui Chem Co Ltd | 地域内電力融通システム |
US20120119586A1 (en) | 2010-11-11 | 2012-05-17 | Carralero Michael A | Reconfigurable Microgrid Direct Current Interface |
JP2013247792A (ja) * | 2012-05-28 | 2013-12-09 | Hitachi Ltd | 電力管理装置、電力管理システム、及び電力管理方法 |
Non-Patent Citations (2)
Title |
---|
R. ABE; H. TAOKA: "Digital Grid: Communicative Electrical Grids of the Future", IEEE TRANSACTIONS ON SMART GRID, vol. 2, no. 2, June 2011 (2011-06-01), pages 399 - 410 |
See also references of EP3093951A4 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019161706A (ja) * | 2018-03-07 | 2019-09-19 | 日新電機株式会社 | 電力融通システム |
JP7121902B2 (ja) | 2018-03-07 | 2022-08-19 | 日新電機株式会社 | 電力融通システム |
JP2021197766A (ja) * | 2020-06-10 | 2021-12-27 | 古河電気工業株式会社 | 電力ネットワーク |
WO2024034194A1 (ja) * | 2022-08-09 | 2024-02-15 | 株式会社フジタ | 電力制御システム |
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JPWO2015105006A1 (ja) | 2017-03-23 |
JP6365550B2 (ja) | 2018-08-01 |
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