WO2017010052A1 - Storage battery control system, storage battery control method, and program - Google Patents

Storage battery control system, storage battery control method, and program Download PDF

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Publication number
WO2017010052A1
WO2017010052A1 PCT/JP2016/003113 JP2016003113W WO2017010052A1 WO 2017010052 A1 WO2017010052 A1 WO 2017010052A1 JP 2016003113 W JP2016003113 W JP 2016003113W WO 2017010052 A1 WO2017010052 A1 WO 2017010052A1
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WO
WIPO (PCT)
Prior art keywords
power
discharge
storage battery
target period
amount
Prior art date
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PCT/JP2016/003113
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French (fr)
Japanese (ja)
Inventor
良浩 中南
小野田　仙一
森本　直久
Original Assignee
パナソニックＩｐマネジメント株式会社
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to AU2016293631A priority Critical patent/AU2016293631B2/en
Publication of WO2017010052A1 publication Critical patent/WO2017010052A1/en

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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
    • 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
    • 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
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • 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
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/50—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads
    • H02J2310/56—The network for supplying or distributing electric power characterised by its spatial reach or by the load for selectively controlling the operation of the loads characterised by the condition upon which the selective controlling is based
    • H02J2310/58—The condition being electrical
    • H02J2310/60—Limiting power consumption in the network or in one section of the network, e.g. load shedding or peak shaving
    • 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
    • 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

Definitions

  • the present invention generally relates to a storage battery control system, a storage battery control method, and a program.
  • Patent Document 1 discloses a configuration in which the power storage device includes a storage battery, and the control device instructs the power storage device to operate the storage battery.
  • the operation modes include a solar power sale priority mode, a solar charge mode, a peak cut mode, a midnight power utilization mode, a forced power storage mode, and a forced discharge mode.
  • the solar power sale priority mode is an operation mode in which charging / discharging of the storage battery is controlled so that power sale (reverse power flow) of the power generated by the solar power generator is prioritized.
  • the solar charge mode is an operation mode in which charging / discharging of the storage battery is controlled so as to charge the storage battery with electric power generated by the solar power generation device.
  • the peak cut mode is an operation mode for controlling charging / discharging of the storage battery so that the power supplied from the power system does not exceed a certain value.
  • the late-night power utilization mode controls charging / discharging of the storage battery so that the power supplied from the power system is charged to the storage battery during a period in which the unit price of power supplied from the power system is lower than a threshold (for example, at night). It is an operation mode.
  • the forced power storage mode is an operation mode in which power is forcibly stored in the storage battery.
  • the forced discharge mode is an operation mode in which the electric power stored in the storage battery is forcibly discharged.
  • a power reduction request is transmitted from the power company or aggregator to the customer facility.
  • the storage battery provided in the customer facility does not store a sufficient amount of power during the target period of the power reduction request.
  • the maximum power that can be output from the storage battery is output, so the remaining power amount of the storage battery is exhausted in a short time, and the power reduction for a long time cannot be performed at the customer facility. There was a problem.
  • An object of the present invention is to provide a storage battery control system, a storage battery control method, and a program capable of performing power reduction for a long time when a power reduction request is made.
  • a storage battery control system is a storage battery control system combined with a distribution system of a customer facility that supplies power from a commercial power source and a power storage device to a load, and is supplied from the commercial power source to the load.
  • a power reduction request including information on a target period for requesting reduction of commercial power, a reduction amount of the commercial power requested in the target period, and information on a discharge mode that is a discharge operation of the power storage device requested in the target period
  • the discharge mode is an output priority mode that prioritizes higher output of discharge power, and prioritizes longer discharge time.
  • the time-priority mode can be set, and the instructing unit sets the target period based on the discharge mode and the reduced power consumption. Characterized by instructing the discharging operation of that electric storage device.
  • a storage battery control method is a storage battery control method used in a storage battery control system combined with a distribution system for supplying power from a commercial power supply and a power storage device to a load in a customer facility, the commercial power supply
  • a program according to an aspect of the present invention is a program used in a storage battery control system combined with a distribution system that supplies power from a commercial power source and a power storage device to a load at a customer facility, and the computer is connected to the commercial power source.
  • Each of a target period for requesting reduction of commercial power supplied to the load, a reduction amount of the commercial power requested in the target period, and a discharge mode that is a discharge operation of the power storage device requested in the target period It functions as a request acquisition unit that acquires a power reduction request including information, and an instruction unit that instructs the power storage device to perform a discharge operation, and the discharge mode is an output priority mode that prioritizes higher output of discharge power, a discharge time of It can be set to any of the time priority modes that prioritize longer time, and the instruction unit Based on the reduced amount of power, characterized by instructing the discharging operation of the electric storage device in the target period.
  • FIG. 3A is an explanatory diagram illustrating charge / discharge control performed when there is no DR signal in the output priority mode.
  • FIG. 3B is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the output priority mode.
  • FIG. 3C is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the output priority mode.
  • FIG. 4A is an explanatory diagram illustrating charge / discharge control performed when there is no DR signal in the time priority mode.
  • FIG. 4B is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the time priority mode.
  • FIG. 4C is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the time priority mode. It is a block diagram which shows the modification of the storage battery control system of embodiment.
  • the following embodiments generally relate to a storage battery control system, a storage battery control method, and a program. More specifically, the following embodiments relate to a commercial power supply, a storage battery control system combined with a power distribution system that supplies power from a power storage device to a load, a storage battery control method, and a program.
  • FIG. 1 shows an overall configuration of a power distribution system 10 in which a storage battery control system 1 is combined.
  • the power distribution system 10 includes a distribution board 2 and a power storage device 3 as main components, and supplies power to a load 9.
  • this embodiment demonstrates the form which applied the power distribution system 10 to the detached residence as the consumer facility 400, it is possible to apply the power distribution system 10 to consumer facilities, such as a housing complex and a business establishment. Needless to say.
  • the power distribution system 10 uses the commercial power supply 8 and the power storage device 3 as a power supply for supplying power to the load 9.
  • Distribution board 2 is supplied with AC power (commercial power) from commercial power supply 8 via power system 7 and further supplied with AC power (discharge power) from power storage device 3.
  • the distribution board 2 incorporates a main breaker, a plurality of branch breakers, a switch, and the like in the board, and loads through a plurality of branch circuits branched on the respective load sides of the plurality of branch breakers.
  • 9 is supplied with AC power.
  • the load 9 in FIG. 1 is an electrical device such as a lighting device, an air conditioner, or an information device connected to the branch circuit.
  • the power storage device 3 includes a storage battery 31 and a power conditioner 32.
  • the storage battery 31 is connected to the distribution board 2 via the power conditioner 32.
  • the power conditioner 32 has a function of charging and discharging the storage battery 31. Specifically, the power conditioner 32 converts the AC power supplied from the distribution board 2 into DC power and charges the storage battery 31. Further, the power conditioner 32 converts the DC power supplied from the storage battery 31 into AC power and supplies it to the distribution board 2 to discharge the storage battery 31. Furthermore, the power conditioner 32 has a function of adjusting the frequency and output voltage of the AC power (discharge power) to be output so that the grid connection with the power system 7 is possible.
  • the discharged power of the power storage device 3 (storage battery 31) is supplied to a part or all of the total power “total demand power” consumed by the load 9 (total power consumed by each load 9), to the power system 7. It is used for either “reverse power flow power” that flows in reverse power.
  • the power distribution system 10 is configured to be able to perform a power storage operation for charging commercial power to the storage battery 31 and a reverse power flow operation for reversely flowing the discharge power of the power storage device 3 to the power system 7.
  • the power conditioner 32 includes a communication unit 320.
  • the communication unit 320 is configured to be able to communicate with the storage battery control system 1. Communication between the communication unit 320 and the storage battery control system 1 may be either wired communication or wireless communication.
  • the storage battery control system 1 in FIG. 1 is composed of one storage battery control device.
  • the storage battery control system 1 includes a request acquisition unit 11, a remaining power amount acquisition unit 12, an instruction unit 13, and a reducible amount acquisition unit 14.
  • the storage battery control system 1 has a function of instructing a discharging operation and a charging operation of the storage battery 31 by the power conditioner 32. That is, the storage battery control system 1 instructs the discharge operation and the charge operation of the storage battery 31 by the power conditioner 32, so that the customer facility 400 receives power from the power system 7, and the consumer facility 400 to the power system 7. It is possible to adjust the reverse power flow that flows backward.
  • the request acquisition unit 11 is connected to a wide area network 100 including the Internet via a smart meter for remote meter reading of electric power installed in a customer facility 400 or a network device such as a router or a home gateway.
  • the request acquisition unit 11 can communicate with the upper server 200 on the wide area network 100.
  • the host server 200 is managed by an electric power company or an aggregator.
  • the power company or aggregator causes the host server 200 to transmit various requests and information to the customer facility 400 based on the supply and demand balance of commercial power in the power system 7.
  • a service using demand response for power peak cut is proposed by an electric power company or an aggregator.
  • this demand response is sent to the customer to reduce the amount of commercial power used during the power suppression period. Request in advance.
  • This demand response signal corresponds to a power reduction request.
  • the demand response signal is referred to as a DR signal.
  • the DR signal includes information on the target period, the reduced power consumption, and the discharge mode.
  • the target period is a period for requesting reduction of the amount of commercial power used (that is, reduction of commercial power supplied from the commercial power supply 8 to the load 9). For example, if a problem occurs in the power generation facility, substation facility, power transmission facility, etc. on the power system 7 side, the period required for recovery or the period until power procurement from another power company is started The recovery period can be estimated with an aggregator. In this case, the target period is set based on the recovery period.
  • Reduced power is the amount of reduced commercial power required during the target period.
  • the host server 200 acquires data such as the rated capacity of the storage battery 31 of the customer facility 400 in advance, and determines the amount of reduced power requested to the customer facility 400 based on the rated capacity of the storage battery 31.
  • the discharge mode is a discharge operation of the power storage device 3 requested in the target period, and in this embodiment, either the output priority mode or the time priority mode is selected.
  • the discharge mode may be configured such that not only the above two discharge modes but also any one of three or more discharge modes including the output priority mode and the time priority mode is selected.
  • the request acquisition unit 11 acquires (receives) the DR signal transmitted from the upper server 200.
  • This DR signal is transmitted from the upper server 200 immediately before the target period for which power reduction is requested, the morning of the target period for which power reduction is requested, or the day before the target period for which power reduction is requested.
  • the remaining power amount acquisition unit 12 is left from the power conditioner 32 of the power storage device 3. Get energy data.
  • the power conditioner 32 holds data on the amount of power (remaining power amount) stored in the storage battery 31.
  • the power conditioner 32 receives an acquisition request from the remaining power amount acquisition unit 12, the power conditioner 32 transmits data on the current remaining power amount to the storage battery control system 1.
  • the remaining power amount data corresponds to the amount of power that can be discharged by the storage battery 31 of the power storage device 3 in the target period.
  • the instruction unit 13 instructs the discharge operation of the power storage device 3 in the target period based on the discharge mode, the reduced power amount, and the remaining power amount requested by the DR signal.
  • indication part 13 is comprised so that communication with the communication part 320 of the power conditioner 32 is possible, and transmits the instruction
  • the wired communication specification may be appropriately selected from LAN (Local Area Network), dedicated line communication, and the like. It is not limited.
  • the wireless communication specification may be appropriately selected from wireless LAN, Bluetooth (registered trademark), and the like. It is not limited.
  • the request acquisition unit 11 acquires the DR signal (S1)
  • the remaining power amount acquisition unit 12 starts from the power conditioner 32. Data on the remaining power is acquired (S2).
  • indication part 13 discriminate
  • the discharge mode requested by the DR signal is an output priority mode or a time priority mode.
  • the output priority mode is an operation mode that prioritizes higher discharge power output.
  • the peak power demand during the target period is significantly higher than the power supply, allowing the peak power demand during the target period. It is requested when it is necessary to suppress as much as possible. Therefore, in the output priority mode, the discharge control is performed so as to perform a discharge operation with as high an output as possible based on the requested reduced electric energy.
  • the time priority mode is an operation mode that prioritizes longer discharge times, where the power demand in the target period is constrained to the power supply over a long period of time, and the power demand over the entire period of the target period. Requested when there is a need to suppress. Therefore, in the time priority mode, the discharge control is performed so that the discharge operation is continued over the entire requested target period.
  • the instructing unit 13 obtains a value obtained by dividing the reduced power amount by the time length of the target period (target period length), as a discharge power instruction value (discharge instruction value: unit). Discharge electric energy in time).
  • the instruction unit 13 instructs the power conditioner 32 to perform a discharge operation with the set discharge instruction value (S6).
  • the power conditioner 32 controls the discharge power of the storage battery 31 in the target period so as to coincide with the discharge instruction value instructed from the instruction unit 13. In this case, if the remaining power amount of the storage battery 31 is equal to or greater than the reduced power amount, the power conditioner 32 can execute the discharge control that satisfies the discharge instruction value over the entire target period.
  • the power conditioner 32 can execute discharge control that satisfies the discharge instruction value while the remaining power amount remains. However, when the remaining power amount decreases to a predetermined value or less, the discharge power becomes zero, and the power conditioner 32 stops the discharge operation. In other words, in the output priority mode, discharge control is performed so as to perform a discharge operation with as high an output as possible based on the requested reduced power amount.
  • the instruction unit 13 determines whether the reduced power amount is equal to or greater than the remaining power amount (S4). When the reduced power amount is less than the remaining power amount, a value obtained by dividing the reduced power amount by the target period length is set as the discharge instruction value.
  • the instruction unit 13 instructs the power conditioner 32 to perform a discharge operation at the set discharge instruction value during the target period (S6).
  • the power conditioner 32 controls the discharge power of the storage battery 31 in the target period so as to coincide with the discharge instruction value instructed from the instruction unit 13. In this case, since the reduced power amount is less than the remaining power amount of the storage battery 31, the power conditioner 32 can execute the discharge control that satisfies the discharge instruction value over the entire period of the target period. Furthermore, this discharge control makes it possible to perform a high-output discharge operation over the entire target period.
  • the instruction unit 13 sets a value obtained by dividing the remaining power amount by the target period length as the discharge instruction value. .
  • the instruction unit 13 instructs the power conditioner 32 to perform a discharge operation at the set discharge instruction value during the target period (S5).
  • the power conditioner 32 controls the discharge power of the storage battery 31 in the target period so as to coincide with the discharge instruction value instructed from the instruction unit 13. In this case, since discharge control based on the remaining power amount of the storage battery 31 is performed, even if the reduced power amount is equal to or greater than the remaining power amount, the power conditioner 32 sets the discharge instruction value over the entire target period. The discharge control to satisfy can be executed.
  • discharge control is performed so as to continue the discharge operation over the entire requested target period.
  • FIG. 3A and FIG. 3B show an operation example when the storage battery control system 1 performs discharge control in the output priority mode.
  • FIG. 3A shows charge / discharge control performed in the customer facility 400 when there is no DR signal. This charge / discharge control is performed based on the total demand power of the load 9, the remaining power amount of the storage battery 31, and the like.
  • FIG. 3B shows charge / discharge control performed in the customer facility 400 when there is a DR signal requesting the output priority mode.
  • the instruction unit 13 of the storage battery control system 1 sets the discharge instruction value in the power reduction target period T1, the reduced power amount as the target period length (the time length of the target period T1). ) Is set to a discharge instruction value P1 which is a value divided by.
  • the power conditioner 32 controls the discharge power of the storage battery 31 in the target period T1 so as to coincide with the discharge instruction value P1 instructed from the instruction unit 13.
  • the remaining power amount is reduced to a predetermined value or less at time t1 during the target period T1, and the power conditioner 32 stops the discharging operation after time t1.
  • FIG. 4A and FIG. 4B show an operation example when the storage battery control system 1 performs the discharge control in the time priority mode.
  • FIG. 4A shows the charge / discharge control performed in the customer facility 400 when there is no DR signal. This charge / discharge control is performed based on the total demand power of the load 9, the remaining power amount of the storage battery 31, and the like.
  • FIG. 4B shows charge / discharge control performed in the customer facility 400 when there is a DR signal requesting the time priority mode.
  • the customer facility 400 has a reduced power amount in the power reduction target period T11 that is equal to or greater than the remaining power amount.
  • the instruction unit 13 of the storage battery control system 1 divides the discharge instruction value in the target period T11 by the remaining power amount by the target period length (time length of the target period T11). Is set to the discharge instruction value P11.
  • the power conditioner 32 controls the discharge power of the storage battery 31 in the target period T11 so as to coincide with the discharge instruction value P11 instructed from the instruction unit 13.
  • discharge control satisfying the discharge instruction value P11 can be executed over the entire period of the target period T11.
  • the power supply amount decreases, so that the DR signal is transmitted from the power company or the aggregator to the customer facility 400.
  • the storage battery 31 provided in the customer facility 400 does not store a sufficient amount of power at the start of the target period of the power reduction request.
  • the conventional discharge control since the maximum power that can be output from the storage battery 31 is output, the remaining power amount of the storage battery 31 is exhausted in a short time, and the customer facility 400 cannot perform power reduction over a long time.
  • this conventional discharge control discharges with the maximum power, there is a possibility that the system frequency of the power system 7 increases and the system voltage increases.
  • the storage battery control system 1 of the present embodiment can cover the remaining power amount over the entire target period when there is a power reduction request in the time priority mode in which priority is given to a longer discharge time. Set the discharge indication value. Therefore, the storage battery control system 1 can carry out power reduction for a long time when there is a power reduction request.
  • the DR effect priority mode may be used as another discharge mode required by the DR signal.
  • the DR effect priority mode is issued, for example, at least one day before the power reduction target period, and the storage battery 31 is fully charged before the power reduction request target period, and the fully charged storage battery 31 is used in the target period. .
  • the maximum power reduction effect of the storage battery 31 can be expected.
  • the customer facility 400 side must respond urgently to a request for power reduction, and the storage battery 31 does not store a sufficient amount of power. It is assumed that
  • the output priority mode or the time priority mode is set as the discharge mode, so that an urgent power reduction request can be handled using the current remaining power amount of the storage battery 31.
  • P2 is the total demand power of the customer facility 400 in the target period T1. Accordingly, surplus power exceeding the total demand power P2 in the discharge power based on the discharge instruction value P1 becomes the reverse power flow P3 and flows backward to the power system 7 side.
  • P12 is the total power demand of the customer facility 400 in the target period T11. Accordingly, surplus power exceeding the total demand power P12 in the discharge power based on the discharge command value P11 becomes the reverse power flow P13 and flows backward to the power system 7.
  • the reverse power flow P3 and P13 may cause an increase in the system frequency of the power system 7 and an increase in the system voltage.
  • the power distribution system 10 includes a power sensor 6 in the power system 7, and the power sensor 6 measures reverse power flow (power sales power) that flows backward from the distribution board 2 to the power system 7, and reverse power flow.
  • the power data is transmitted periodically (every sampling period) to the power conditioner 32 of the power storage device 3. Therefore, the power conditioner 32 can know the generation state of reverse power flow.
  • the power sensor 6 can determine whether reverse power flow has occurred based on the phase difference between the measured voltage and the measured current of the power system 7. Further, a current sensor may be provided in the power system 7 and the reverse power flow may be measured based on the measured current of the current sensor and the measured voltage in the customer facility 400.
  • the DR signal further includes permission / non-permission information for reverse flow, and the instruction unit 13 transmits information indicating permission / non-permission of reverse flow to the power conditioner 32 in addition to the discharge instruction value. .
  • the power conditioner 32 When reverse power flow is permitted, the power conditioner 32 performs the discharge control shown in FIGS. 3B and 4B described above.
  • the power conditioner 32 performs the discharge control shown in FIGS. 3C and 4C.
  • the power conditioner 32 When there is a DR signal requesting the output priority mode and the reverse power flow is not permitted, the power conditioner 32 does not generate the reverse power flow in the range of the discharge instruction value P1 or less as shown in FIG. 3C. Thus, discharge control is performed. That is, if the total demand power P2 is equal to or less than the discharge instruction value P1, the power conditioner 32 performs discharge control so that the discharge power matches the total demand power P2. Further, when the total demand power P2 exceeds the discharge instruction value P1, the power conditioner 32 performs discharge control so that the discharge power matches the discharge instruction value P1. In FIG. 3C, the remaining power amount is reduced to a predetermined value or less at time t2 during the target period T1, and the power conditioner 32 stops the discharging operation after time t2.
  • the power conditioner 32 When there is a DR signal requesting the time priority mode and the reverse flow power is not permitted, the power conditioner 32 does not generate the reverse flow power within the range of the discharge instruction value P11 or less as shown in FIG. 4C. Thus, discharge control is performed. That is, if the total demand power P12 is equal to or less than the discharge instruction value P11, the power conditioner 32 performs the discharge control so that the discharge power matches the total demand power P12. Further, when the total demand power P12 exceeds the discharge instruction value P11, the power conditioner 32 performs the discharge control so that the discharge power matches the discharge instruction value P11.
  • the storage battery control system 1 further includes a reducible amount acquisition unit 14 as shown in FIG.
  • the reducible amount acquisition unit 14 has a function of acquiring reducible power amount data.
  • the reducible power amount is the amount of commercial power that can be reduced in the target period in the customer facility 400.
  • the reducible amount acquiring unit 14 has a function of performing communication with the information terminal 300.
  • the information terminal 300 is any one of a personal computer, a smartphone, a mobile phone, a dedicated terminal, and the like, and data on the amount of power that can be reduced in the target period is input by a user operation.
  • the information terminal 300 transmits data on the amount of power that can be reduced to the storage battery control system 1.
  • a communication path between the information terminal 300 and the storage battery control system 1 is directly or through a network device installed in the customer facility 400, or through a network device installed in the wide area network 100 and the customer facility 400. Built. Or the operation part which inputs the data of the electric energy which can be reduced may be provided in the storage battery control system 1.
  • the storage battery control system 1 transmits the information on the power reduction target period and the reduced power amount notified by the DR signal to the information terminal 300.
  • the information terminal 300 displays information on the target period and the reduced power amount on the monitor screen, and the user inputs data on the power that can be reduced in the target period.
  • the amount of power that can be reduced is determined according to the power usage pattern of the customer facility 400. For example, the use of the load 9 such as an air conditioner cannot be sufficiently suppressed depending on the health condition and the number of people of the customer facility 400. In such a case, the user inputs data of the reducible power amount that can be accepted into the information terminal 300.
  • the instruction unit 13 uses the reducible power amount as the reduced power amount when the reduced power amount requested by the DR signal exceeds the reducible power amount. That is, when the requested discharge mode is the output priority mode, the instruction unit 13 sets a value obtained by dividing the reducible power amount by the target period length as the discharge instruction value. When the requested discharge mode is the time priority mode and the reducible power amount is less than the remaining power amount, the instruction unit 13 sets a value obtained by dividing the reducible power amount by the target period length as a discharge instruction value. Set. When the requested discharge mode is the time priority mode and the reducible power amount is equal to or greater than the remaining power amount, the instruction unit 13 sets a value obtained by dividing the remaining power amount by the target period length as the discharge instruction value. To do.
  • the storage battery control system 1 can set a discharge instruction value that does not impair the convenience in the customer facility 400 according to the power usage pattern of the customer facility 400. Furthermore, since the fluctuation range of the remaining power amount of the storage battery 31 is reduced, the storage battery control system 1 can extend the life of the storage battery 31.
  • the upper server 200 may transmit a mode change request during the target period using this DR signal.
  • the mode change request is a signal for requesting change of the discharge mode during the target period.
  • the upper server 200 may request a change to the output priority mode after requesting the time priority mode by the DR signal.
  • the upper server 200 cannot grasp the amount of power that can be taken from the storage battery 31 when transmitting the DR signal. For this reason, when the upper server 200 transmits a DR signal requesting the time priority mode, if the remaining power amount of the storage battery 31 is too small and the actually reduced power amount is not sufficient, there is a possibility of a power failure. Get higher. Therefore, the upper server 200 may request a change to the output priority mode by transmitting a mode change request even during the target period.
  • the instruction unit 13 sets the discharge instruction value in the output priority mode. Specifically, the instruction unit 13 sets the subsequent discharge instruction value by dividing the unachieved amount of the reduced power amount in the target period by the remaining time of the target period. In this case, the remaining power amount is reduced to a predetermined value or less during the target period, and the power conditioner 32 may stop the discharge operation. However, the possibility that a power failure can be avoided increases.
  • the host server 200 transmits a DR signal requesting the output priority mode
  • the amount of power actually reduced is more than necessary, and the possibility of a power outage is very low.
  • the upper server 200 transmits a mode change request to change to the time priority mode even during the target period. May ask.
  • the instruction unit 13 sets the discharge instruction value in the time priority mode. Specifically, when the unachieved amount of reduced power is less than the current remaining power (the amount of power that can be discharged from the storage battery 31 after the acquisition of the mode change request), the instructing unit 13 A value obtained by dividing the achievement amount by the remaining time of the target period is set as the discharge instruction value.
  • indication part 13 sets the value which remove
  • the storage battery control system 1 may be configured by a plurality of devices in the customer facility 400 in addition to the configuration configured by one storage battery control device.
  • the power storage device 3 may include the storage battery control system 1, and the storage battery control system 1 and the power storage device 3 may be configured integrally.
  • FIG. 5 shows a storage battery control system 1A as a modification of the present embodiment.
  • the storage battery control system 1 ⁇ / b> A is configured by one server on the wide area network 100.
  • the storage battery control system 1A includes a request acquisition unit 11A, a remaining power amount acquisition unit 12A, an instruction unit 13A, a reducible amount acquisition unit 14A, and a database 15A.
  • Each of the request acquisition unit 11A, the remaining power amount acquisition unit 12A, the instruction unit 13A, and the reducible amount acquisition unit 14A includes the request acquisition unit 11, the remaining power amount acquisition unit 12, the instruction unit 13, and the reduction of the storage battery control system 1 described above. It has substantially the same function as the possible amount acquisition unit 14.
  • the communication unit 321 of the power conditioner 32 is connected to the wide area network 100 via a network device such as a smart meter for remote meter reading of electric power installed in the customer facility 400 or a router or a home gateway. That is, the storage battery control system 1 ⁇ / b> A and the power conditioner 32 can communicate via the wide area network 100.
  • the request acquisition unit 11A receives the DR signal from the upper server 200 on the wide area network 100.
  • the remaining power amount acquisition unit 12A acquires remaining power amount data from the power conditioner 32 via the wide area network 100.
  • the reducible amount acquisition unit 14 ⁇ / b> A receives data on the reducible power amount from the information terminal 300 via the wide area network 100. Therefore, the storage battery control system 1A can receive the remaining power amount data and the reducible power amount data from the plurality of customer facilities 400 (401, 402, 403,).
  • the database 15A stores the remaining power amount data and the reducible power amount data corresponding to each of the plurality of customer facilities 400.
  • the instruction unit 13A individually sets the discharge instruction value in the target period based on the discharge mode, the reduced electric energy, and the remaining electric energy requested by the DR signal corresponding to each of the plurality of customer facilities 400.
  • the instruction unit 13A instructs a discharge operation (discharge instruction value) to each power conditioner 32 of the plurality of customer facilities 400 via the wide area network 100.
  • the discharge instruction values of the plurality of customer facilities 400 are stored in the database 15A and managed for each customer facility 400.
  • the storage battery control system 1A can individually implement power reduction over a long period of time when there is a power reduction request for the plurality of customer facilities 400.
  • the storage battery control system 1 ⁇ / b> A may be configured by a plurality of servers on the wide area network 100.
  • the storage battery control system 1A is configured by, for example, a cloud computing system.
  • the storage battery control system 1 or 1A of the first aspect is combined with the power distribution system 10 of the customer facility 400 that supplies power from the commercial power supply 8 and the power storage device 3 to the load 9.
  • the storage battery control system 1 or 1A includes a request acquisition unit 11 or 11A and an instruction unit 13 or 13A.
  • the request acquisition unit 11 or 11A includes a target period for requesting reduction of commercial power supplied from the commercial power supply 8 to the load 9, a reduction amount of commercial power requested in the target period, and the power storage device 3 requested in the target period.
  • the power reduction request including each information of the discharge mode that is the discharge operation is acquired.
  • Instructing unit 13 or 13A instructs power storage device 3 to perform a discharging operation.
  • the discharge mode can be set to either an output priority mode that prioritizes higher discharge power output or a time priority mode that prioritizes longer discharge time. Then, instructing unit 13 or 13A instructs the discharging operation of power storage device 3 in the target period based on the discharging mode and the reduced power amount.
  • the storage battery control system 1 or 1A can instruct the discharge operation of the power storage device 3 so that the battery can be discharged for a long time when there is a power reduction request in the time priority mode in which priority is given to a longer discharge time. . That is, the storage battery control system 1 or 1A can perform power reduction over a long time when there is a power reduction request.
  • the storage battery control system 1 or 1A acquires the remaining power information that is the amount of power that can be discharged by the storage battery 31 of the power storage device 3 in the target period. It is preferable to further include a quantity acquisition unit 12 or 12A. Instructing unit 13 or 13A instructs the discharging operation of power storage device 3 in the target period based on the discharge mode, the reduced power amount, and the remaining power amount.
  • the storage battery control system 1 or 1A can cover the remaining power amount over the entire target period when there is a power reduction request in the time priority mode that prioritizes longer discharge time.
  • a discharge operation of the power storage device 3 can be commanded. That is, when there is a power reduction request, the storage battery control system 1 or 1A can perform power reduction over a long period of time using the remaining power amount.
  • the instructing unit 13 or 13A when the discharge mode is the output priority mode, sets the reduced power amount by the length of the target period. It is preferable to determine the discharge power of the storage battery 31 in the target period.
  • the instructing unit 13 or 13A divides the remaining power amount by the time length of the target period if the reduced power amount is equal to or greater than the remaining power amount, so that the storage battery in the target period It is preferable to determine the discharge power of 31.
  • the instruction unit 13 or 13A divides the reduced power amount by the time length of the target period if the reduced power amount is less than the remaining power amount. It is preferable to determine the discharge power of 31.
  • the storage battery control system 1 or 1A can cover the remaining power amount over the entire target period when there is a power reduction request in the time priority mode that prioritizes longer discharge time.
  • a discharge operation of the power storage device 3 can be commanded. If the reduced power amount is equal to or greater than the remaining power amount, the storage battery control system 1 or 1A performs discharge control that uses up the remaining power amount over the entire target period. Reductions can be implemented. Further, if the reduced power amount is less than the remaining power amount, the storage battery control system 1 or 1A discharges only the reduced power amount from the remaining power amount, so that the remaining power amount of the storage battery 31 can be secured after the discharge control. The convenience after the discharge control is improved. Further, in the output priority mode that prioritizes higher output of discharge power, discharge control is performed so as to perform a discharge operation with as high output as possible based on the requested reduced power amount.
  • the storage battery control system 1 or 1A of the fourth aspect is a reducible power that is the amount of commercial power that can be reduced in the target period in the customer facility 400 in any of the first to third aspects. It is preferable to further include a reducible amount acquiring unit 14 or 14A that acquires the amount of data. When the reduction power amount requested by the power reduction request exceeds the reducible power amount, the instructing unit 13 or 13A uses the reducible power amount as the reduced power amount.
  • the storage battery control system 1 or 1A can instruct the discharge operation so as not to impair the convenience in the customer facility 400 according to the power usage pattern of the customer facility 400. Furthermore, since the fluctuation range of the remaining power amount of the storage battery 31 is reduced, the life of the storage battery 31 can be extended.
  • the request acquisition unit 11 or 11A requests a mode change request for requesting a change of the discharge mode during the target period.
  • the instruction unit 13 or 13A operates as follows.
  • the instructing unit 13 or 13A changes the mode based on the changed discharge mode, the unachieved amount of reduced power during the target period, and the amount of power that can be discharged by the storage battery 31 of the power storage device 3 after the acquisition of the mode change request.
  • the power storage device 3 is instructed to discharge after the request is acquired.
  • the possibility of power failure avoidance increases. Further, by changing from the output priority mode to the time priority mode, the discharge operation can be continued over the entire target period requested.
  • This storage battery control method includes a request acquisition step (S1) and instruction steps (S3, S4, S5).
  • the request acquisition step includes a target period for requesting reduction of commercial power supplied from the commercial power supply 8 to the load 9, a reduction amount of commercial power requested in the target period, and a discharge operation of the power storage device 3 requested in the target period.
  • the power reduction request including each information of the discharge mode is acquired.
  • the instruction step instructs the power storage device 3 to perform a discharging operation.
  • the discharge mode can be set to either an output priority mode that prioritizes higher discharge power output or a time priority mode that prioritizes longer discharge time.
  • indicates the discharge operation of the electrical storage apparatus 3 in an object period based on discharge mode and reduction electric energy.
  • the storage battery control method can instruct the discharging operation of the power storage device 3 so that it can be discharged for a long time when there is a power reduction request in the time priority mode in which priority is given to a longer discharge time. That is, the storage battery control method can carry out power reduction for a long time when there is a power reduction request.
  • a computer mainly includes a device having a processor for executing a program, an interface device for transmitting / receiving data to / from other apparatuses, and a storage device for storing data.
  • the device provided with the processor may be a CPU (Central Processing Unit) or MPU (Micro Processing Unit) which is a separate body from the semiconductor memory, or a microcomputer integrally including a semiconductor memory.
  • a storage device a storage device having a short access time such as a semiconductor memory and a large-capacity storage device such as a hard disk device are used in combination.
  • a program providing form a computer-readable ROM (Read Only Memory), a form stored in advance in a recording medium such as an optical disc, a form supplied to a recording medium via a wide area communication network including the Internet, etc. There is.
  • ROM Read Only Memory
  • the program of the 7th mode concerning an embodiment is used for storage battery control system 1 or 1A combined with distribution system 10 which supplies electric power from commercial power supply 8 and power storage device 3 to load 9 in consumer facility 400.
  • This program causes the computer to function as the request acquisition unit 11 or 11A and the instruction unit 13 or 13A.
  • the request acquisition unit 11 or 11A includes a target period for requesting reduction of commercial power supplied from the commercial power supply 8 to the load 9, a reduction amount of commercial power requested in the target period, and the power storage device 3 requested in the target period.
  • the power reduction request including each information of the discharge mode that is the discharge operation is acquired.
  • Instructing unit 13 or 13A instructs power storage device 3 to perform a discharging operation.
  • the discharge mode can be set to either an output priority mode that prioritizes higher discharge power output or a time priority mode that prioritizes longer discharge time. Then, instructing unit 13 or 13A instructs the discharging operation of power storage device 3 in the target period based on the discharging mode and the reduced power amount.
  • the program for causing the computer to function as the storage battery control system 1 or 1A also enables the power storage device 3 so that it can be discharged for a long time when there is a power reduction request in the time priority mode that prioritizes longer discharge time.
  • the discharge operation can be commanded. That is, the program can perform power reduction over a long time when a power reduction request is made.
  • the power distribution system 10 may include a distributed power source such as a solar power generation device or a wind power generation device, and use the power generated by the distributed power source for charging the storage battery 31 or driving power for the load 9.
  • a distributed power source such as a solar power generation device or a wind power generation device

Abstract

The present invention addresses the problem of providing a storage battery control system, a storage battery control method, and a program with which it is possible to perform power reduction over a long period when there is a power reduction request. In the storage battery control system, storage battery control method, and program according to the present invention, the storage battery control system (1) is provided with a request acquisition unit (11) and an instruction unit (13). The request acquisition unit (11) acquires a power reduction request including information representing the discharge mode, the power reduction amount, and the subject period for which a reduction in commercial power is requested. The discharge mode is set to either an output priority mode or a time priority mode. The instruction unit (13) issues an instruction for the operation of discharging a power storage device (3) in the subject period on the basis of the discharge mode and the power reduction amount.

Description

蓄電池制御システム、蓄電池制御方法、およびプログラムStorage battery control system, storage battery control method, and program
　本発明は、一般に蓄電池制御システム、蓄電池制御方法、およびプログラムに関する。 The present invention generally relates to a storage battery control system, a storage battery control method, and a program.
　従来、商用電源と蓄電装置とが併存するシステムがある。特許文献１では、蓄電装置は蓄電池を備えており、制御装置が、蓄電池の運転モードを蓄電装置に指示する構成が開示されている。運転モードには、太陽光売電優先モード、太陽光充電モード、ピークカットモード、深夜電力活用モード、強制蓄電モード、強制放電モードなどがある。 Conventionally, there is a system in which a commercial power source and a power storage device coexist. Patent Document 1 discloses a configuration in which the power storage device includes a storage battery, and the control device instructs the power storage device to operate the storage battery. The operation modes include a solar power sale priority mode, a solar charge mode, a peak cut mode, a midnight power utilization mode, a forced power storage mode, and a forced discharge mode.
　太陽光売電優先モードは、太陽光発電装置によって発電された電力の売電（逆潮流）を優先するように、蓄電池の充放電を制御する運転モードである。太陽光充電モードは、太陽光発電装置によって発電された電力を蓄電池に充電するように、蓄電池の充放電を制御する運転モードである。ピークカットモードは、電力系統から供給される電力が一定値を超えないように、蓄電池の充放電を制御する運転モードである。深夜電力活用モードは、電力系統から供給される電力の単価が閾値よりも低い期間（たとえば、夜間）において、電力系統から供給される電力を蓄電池に充電するように、蓄電池の充放電を制御する運転モードである。強制蓄電モードは、蓄電池に電力を強制的に蓄積する運転モードである。強制放電モードは、蓄電池に蓄積された電力を強制的に放電する運転モードである。 The solar power sale priority mode is an operation mode in which charging / discharging of the storage battery is controlled so that power sale (reverse power flow) of the power generated by the solar power generator is prioritized. The solar charge mode is an operation mode in which charging / discharging of the storage battery is controlled so as to charge the storage battery with electric power generated by the solar power generation device. The peak cut mode is an operation mode for controlling charging / discharging of the storage battery so that the power supplied from the power system does not exceed a certain value. The late-night power utilization mode controls charging / discharging of the storage battery so that the power supplied from the power system is charged to the storage battery during a period in which the unit price of power supplied from the power system is lower than a threshold (for example, at night). It is an operation mode. The forced power storage mode is an operation mode in which power is forcibly stored in the storage battery. The forced discharge mode is an operation mode in which the electric power stored in the storage battery is forcibly discharged.
　商用電力を供給する電力系統側（たとえば、発電設備、変電設備、送電設備など）でトラブルが発生した場合、電力会社またはアグリゲータから需要家施設へ電力削減要請が伝達される。しかしながら、需要家施設に備えられている蓄電池は、電力削減要請の対象期間に十分な電力量が蓄えられていないことが想定される。そして、電力削減要請に対する従来の放電制御では、蓄電池から出力可能な最大電力を出力させるため、蓄電池の残電力量が短時間で尽きてしまい、需要家施設において長時間に亘る電力削減を実施できないという課題があった。 When trouble occurs on the power system side that supplies commercial power (for example, power generation equipment, substation equipment, power transmission equipment, etc.), a power reduction request is transmitted from the power company or aggregator to the customer facility. However, it is assumed that the storage battery provided in the customer facility does not store a sufficient amount of power during the target period of the power reduction request. In the conventional discharge control in response to the power reduction request, the maximum power that can be output from the storage battery is output, so the remaining power amount of the storage battery is exhausted in a short time, and the power reduction for a long time cannot be performed at the customer facility. There was a problem.
特開２０１４－３３５９１号公報JP 2014-33591 A
　本発明の目的は、電力削減要請があった場合に長時間に亘る電力削減を実施することができる蓄電池制御システム、蓄電池制御方法、およびプログラムを提供することにある。 An object of the present invention is to provide a storage battery control system, a storage battery control method, and a program capable of performing power reduction for a long time when a power reduction request is made.
　本発明の一態様に係る蓄電池制御システムは、商用電源および蓄電装置から負荷へ電力を供給する需要家施設の配電システムに組み合わされる蓄電池制御システムであって、前記商用電源から前記負荷へ供給される商用電力の削減を要請する対象期間、前記対象期間において要請される前記商用電力の削減電力量、前記対象期間において要請される前記蓄電装置の放電動作である放電モードの各情報を含む電力削減要請を取得する要請取得部と、前記蓄電装置に放電動作を指示する指示部とを備え、前記放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能であり、前記指示部は、前記放電モード、前記削減電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示することを特徴とする。 A storage battery control system according to one aspect of the present invention is a storage battery control system combined with a distribution system of a customer facility that supplies power from a commercial power source and a power storage device to a load, and is supplied from the commercial power source to the load. A power reduction request including information on a target period for requesting reduction of commercial power, a reduction amount of the commercial power requested in the target period, and information on a discharge mode that is a discharge operation of the power storage device requested in the target period A request acquisition unit for acquiring a discharge power, and an instruction unit for instructing the power storage device to perform a discharge operation. The discharge mode is an output priority mode that prioritizes higher output of discharge power, and prioritizes longer discharge time. The time-priority mode can be set, and the instructing unit sets the target period based on the discharge mode and the reduced power consumption. Characterized by instructing the discharging operation of that electric storage device.
　本発明の一態様に係る蓄電池制御方法は、需要家施設において、商用電源および蓄電装置から負荷へ電力を供給する配電システムに組み合わされる蓄電池制御システムに用いられる蓄電池制御方法であって、前記商用電源から前記負荷へ供給される商用電力の削減を要請する対象期間、前記対象期間において要請される前記商用電力の削減電力量、前記対象期間において要請される前記蓄電装置の放電動作である放電モードの各情報を含む電力削減要請を取得する要請取得ステップと、前記蓄電装置に放電動作を指示する指示ステップとを備え、前記放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能であり、前記指示ステップは、前記放電モード、前記削減電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示することを特徴とする。 A storage battery control method according to an aspect of the present invention is a storage battery control method used in a storage battery control system combined with a distribution system for supplying power from a commercial power supply and a power storage device to a load in a customer facility, the commercial power supply A target period for requesting reduction of commercial power supplied to the load, a reduction amount of the commercial power requested in the target period, a discharge mode that is a discharge operation of the power storage device requested in the target period A request acquisition step for acquiring a power reduction request including each information, and an instruction step for instructing the power storage device to perform a discharge operation, wherein the discharge mode is an output priority mode that prioritizes higher output of discharge power, and a discharge time. Any one of the time priority modes that prioritize a longer period of time can be set, and the instruction step includes the discharge mode. De, based on the reduction amount of power, characterized by instructing the discharging operation of the electric storage device in the target period.
　本発明の一態様に係るプログラムは、需要家施設において、商用電源および蓄電装置から負荷へ電力を供給する配電システムに組み合わされる蓄電池制御システムに用いられるプログラムであって、コンピュータを、前記商用電源から前記負荷へ供給される商用電力の削減を要請する対象期間、前記対象期間において要請される前記商用電力の削減電力量、前記対象期間において要請される前記蓄電装置の放電動作である放電モードの各情報を含む電力削減要請を取得する要請取得部と、前記蓄電装置に放電動作を指示する指示部として機能させ、前記放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能であり、前記指示部は、前記放電モード、前記削減電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示することを特徴とする。 A program according to an aspect of the present invention is a program used in a storage battery control system combined with a distribution system that supplies power from a commercial power source and a power storage device to a load at a customer facility, and the computer is connected to the commercial power source. Each of a target period for requesting reduction of commercial power supplied to the load, a reduction amount of the commercial power requested in the target period, and a discharge mode that is a discharge operation of the power storage device requested in the target period It functions as a request acquisition unit that acquires a power reduction request including information, and an instruction unit that instructs the power storage device to perform a discharge operation, and the discharge mode is an output priority mode that prioritizes higher output of discharge power, a discharge time of It can be set to any of the time priority modes that prioritize longer time, and the instruction unit Based on the reduced amount of power, characterized by instructing the discharging operation of the electric storage device in the target period.
実施形態の蓄電池制御システムを組み合わせた配電システムを示すブロック図である。It is a block diagram which shows the power distribution system which combined the storage battery control system of embodiment. 実施形態の蓄電池制御システムの動作を示すフローチャートである。It is a flowchart which shows operation | movement of the storage battery control system of embodiment. 図３Ａは、出力優先モードにおいてＤＲ信号がない場合に実施される充放電制御を示す説明図である。図３Ｂは、出力優先モードにおいて逆潮流が許可されている場合にＤＲ信号に基づいて実施される放電制御を示す説明図である。図３Ｃは、出力優先モードにおいて逆潮流が許可されている場合にＤＲ信号に基づいて実施される放電制御を示す説明図である。FIG. 3A is an explanatory diagram illustrating charge / discharge control performed when there is no DR signal in the output priority mode. FIG. 3B is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the output priority mode. FIG. 3C is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the output priority mode. 図４Ａは、時間優先モードにおいてＤＲ信号がない場合に実施される充放電制御を示す説明図である。図４Ｂは、時間優先モードにおいて逆潮流が許可されている場合にＤＲ信号に基づいて実施される放電制御を示す説明図である。図４Ｃは、時間優先モードにおいて逆潮流が許可されている場合にＤＲ信号に基づいて実施される放電制御を示す説明図である。FIG. 4A is an explanatory diagram illustrating charge / discharge control performed when there is no DR signal in the time priority mode. FIG. 4B is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the time priority mode. FIG. 4C is an explanatory diagram illustrating discharge control performed based on the DR signal when reverse power flow is permitted in the time priority mode. 実施形態の蓄電池制御システムの変形例を示すブロック図である。It is a block diagram which shows the modification of the storage battery control system of embodiment.
　以下、実施の形態を図面に基づいて説明する。 Hereinafter, embodiments will be described with reference to the drawings.
　以下の実施形態は、一般に蓄電池制御システム、蓄電池制御方法、およびプログラムに関する。より詳細には、以下の実施形態は、商用電源、蓄電装置から負荷へ電力を供給する配電システムに組み合される蓄電池制御システム、蓄電池制御方法、およびプログラムに関する。 The following embodiments generally relate to a storage battery control system, a storage battery control method, and a program. More specifically, the following embodiments relate to a commercial power supply, a storage battery control system combined with a power distribution system that supplies power from a power storage device to a load, a storage battery control method, and a program.
　　（実施形態）
　図１は、蓄電池制御システム１を組み合わせた配電システム１０の全体構成を示す。配電システム１０は、分電盤２、蓄電装置３を主構成として備えて、負荷９へ電力を供給している。なお、本実施形態では、需要家施設４００として戸建ての住戸に配電システム１０を適用した形態について説明するが、集合住宅や事業所などの需要家施設に配電システム１０を適用してもよいことは言うまでもない。 (Embodiment)
FIG. 1 shows an overall configuration of a power distribution system 10 in which a storage battery control system 1 is combined. The power distribution system 10 includes a distribution board 2 and a power storage device 3 as main components, and supplies power to a load 9. In addition, although this embodiment demonstrates the form which applied the power distribution system 10 to the detached residence as the consumer facility 400, it is possible to apply the power distribution system 10 to consumer facilities, such as a housing complex and a business establishment. Needless to say.
　まず、配電システム１０は、負荷９に電力を供給する電源として、商用電源８と、蓄電装置３とを用いている。 First, the power distribution system 10 uses the commercial power supply 8 and the power storage device 3 as a power supply for supplying power to the load 9.
　分電盤２は、商用電源８から電力系統７を介して交流電力（商用電力）を供給され、さらに蓄電装置３から交流電力（放電電力）を供給される。そして、分電盤２は、主幹ブレーカおよび複数の分岐ブレーカ、開閉器等を盤内に内蔵しており、複数の分岐ブレーカのそれぞれの負荷側にて分岐した複数系統の分岐回路を介して負荷９に交流電力を供給している。なお、図１の負荷９は、分岐回路にそれぞれ接続された照明装置、空調装置、情報機器などの電気機器である。 Distribution board 2 is supplied with AC power (commercial power) from commercial power supply 8 via power system 7 and further supplied with AC power (discharge power) from power storage device 3. The distribution board 2 incorporates a main breaker, a plurality of branch breakers, a switch, and the like in the board, and loads through a plurality of branch circuits branched on the respective load sides of the plurality of branch breakers. 9 is supplied with AC power. Note that the load 9 in FIG. 1 is an electrical device such as a lighting device, an air conditioner, or an information device connected to the branch circuit.
　蓄電装置３は、蓄電池３１、パワーコンディショナ３２を備える。 The power storage device 3 includes a storage battery 31 and a power conditioner 32.
　蓄電池３１は、パワーコンディショナ３２を介して分電盤２に接続している。パワーコンディショナ３２は、蓄電池３１の充電および放電を行う機能を有している。具体的に、パワーコンディショナ３２は、分電盤２から供給される交流電力を直流電力に変換して、蓄電池３１を充電する。また、パワーコンディショナ３２は、蓄電池３１から供給される直流電力を交流電力に変換して分電盤２へ供給し、蓄電池３１を放電させる。さらに、パワーコンディショナ３２は、電力系統７との系統連系が可能となるように、出力する交流電力（放電電力）の周波数および出力電圧を調節する機能を有している。 The storage battery 31 is connected to the distribution board 2 via the power conditioner 32. The power conditioner 32 has a function of charging and discharging the storage battery 31. Specifically, the power conditioner 32 converts the AC power supplied from the distribution board 2 into DC power and charges the storage battery 31. Further, the power conditioner 32 converts the DC power supplied from the storage battery 31 into AC power and supplies it to the distribution board 2 to discharge the storage battery 31. Furthermore, the power conditioner 32 has a function of adjusting the frequency and output voltage of the AC power (discharge power) to be output so that the grid connection with the power system 7 is possible.
　そして、蓄電装置３（蓄電池３１）の放電電力は、負荷９で消費される総電力「総需要電力」（負荷９のそれぞれで消費される電力の合計）の一部または全部、電力系統７へ逆潮流する電力「逆潮流電力」のいずれかに用いられる。 Then, the discharged power of the power storage device 3 (storage battery 31) is supplied to a part or all of the total power “total demand power” consumed by the load 9 (total power consumed by each load 9), to the power system 7. It is used for either “reverse power flow power” that flows in reverse power.
　すなわち、配電システム１０は、商用電力を蓄電池３１に充電する蓄電動作、蓄電装置３の放電電力を電力系統７に逆潮流させる逆潮流動作を可能に構成されている。 That is, the power distribution system 10 is configured to be able to perform a power storage operation for charging commercial power to the storage battery 31 and a reverse power flow operation for reversely flowing the discharge power of the power storage device 3 to the power system 7.
　さらに、パワーコンディショナ３２は、通信部３２０を備える。通信部３２０は、蓄電池制御システム１との間で通信可能に構成されている。通信部３２０と蓄電池制御システム１との間の通信は、有線通信、無線通信のいずれでもよい。 Furthermore, the power conditioner 32 includes a communication unit 320. The communication unit 320 is configured to be able to communicate with the storage battery control system 1. Communication between the communication unit 320 and the storage battery control system 1 may be either wired communication or wireless communication.
　図１の蓄電池制御システム１は、１台の蓄電池制御装置で構成されている。 The storage battery control system 1 in FIG. 1 is composed of one storage battery control device.
　蓄電池制御システム１は、要請取得部１１、残電力量取得部１２、指示部１３、削減可能量取得部１４を備える。そして、蓄電池制御システム１は、パワーコンディショナ３２による蓄電池３１の放電動作および充電動作を指示する機能を有する。すなわち、蓄電池制御システム１は、パワーコンディショナ３２による蓄電池３１の放電動作および充電動作を指示することで、需要家施設４００が電力系統７から受電する商用電力、需要家施設４００から電力系統７へ逆潮流する逆潮流電力を調整することができる。 The storage battery control system 1 includes a request acquisition unit 11, a remaining power amount acquisition unit 12, an instruction unit 13, and a reducible amount acquisition unit 14. The storage battery control system 1 has a function of instructing a discharging operation and a charging operation of the storage battery 31 by the power conditioner 32. That is, the storage battery control system 1 instructs the discharge operation and the charge operation of the storage battery 31 by the power conditioner 32, so that the customer facility 400 receives power from the power system 7, and the consumer facility 400 to the power system 7. It is possible to adjust the reverse power flow that flows backward.
　要請取得部１１は、需要家施設４００に設置された電力の遠隔検針用のスマートメータ、またはルータ、ホームゲートウェイなどのネットワークデバイスを介してインターネットなどを含む広域ネットワーク１００に接続している。そして、要請取得部１１は、広域ネットワーク１００上の上位サーバ２００との間で通信することができる。上位サーバ２００は、電力会社またはアグリゲータ（Aggregator）などによって管理されている。電力会社またはアグリゲータは、電力系統７の商用電力の需給バランスに基づいて、上位サーバ２００から需要家施設４００に対して各種の要請、情報などを送信させる。 The request acquisition unit 11 is connected to a wide area network 100 including the Internet via a smart meter for remote meter reading of electric power installed in a customer facility 400 or a network device such as a router or a home gateway. The request acquisition unit 11 can communicate with the upper server 200 on the wide area network 100. The host server 200 is managed by an electric power company or an aggregator. The power company or aggregator causes the host server 200 to transmit various requests and information to the customer facility 400 based on the supply and demand balance of commercial power in the power system 7.
　ここで、電力会社またはアグリゲータなどによって、電力ピークカットのためのデマンドレスポンスを用いたサービスが提案されている。このデマンドレスポンスは、商用電力に関して電力需要量が電力供給量に逼迫すると予測される場合、電力抑制期間に商用電力の使用量を削減することを顧客に対して、デマンドレスポンス（Demand Response）信号を用いて予め要請する。このデマンドレスポンス信号は、電力削減要請に相当する。なお、以降においては、デマンドレスポンス信号をＤＲ信号と称す。 Here, a service using demand response for power peak cut is proposed by an electric power company or an aggregator. When demand demand is predicted to be close to the power supply amount with respect to commercial power, this demand response is sent to the customer to reduce the amount of commercial power used during the power suppression period. Request in advance. This demand response signal corresponds to a power reduction request. Hereinafter, the demand response signal is referred to as a DR signal.
　ＤＲ信号には、対象期間、削減電力量、放電モードの各情報が含まれる。対象期間は、商用電力の使用量削減（すなわち、商用電源８から負荷９へ供給される商用電力の削減）を要請する期間である。たとえば、電力系統７側の発電設備、変電設備、送電設備などでトラブルが発生した場合、復旧までに要する期間、または他の電力会社からの電力調達が開始されるまでの期間を、電力会社またはアグリゲータで復旧期間として見積もることができる。この場合、対象期間は復旧期間に基づいて設定される。 The DR signal includes information on the target period, the reduced power consumption, and the discharge mode. The target period is a period for requesting reduction of the amount of commercial power used (that is, reduction of commercial power supplied from the commercial power supply 8 to the load 9). For example, if a problem occurs in the power generation facility, substation facility, power transmission facility, etc. on the power system 7 side, the period required for recovery or the period until power procurement from another power company is started The recovery period can be estimated with an aggregator. In this case, the target period is set based on the recovery period.
　削減電力量は、対象期間において要請される商用電力の削減電力量である。上位サーバ２００は、需要家施設４００の蓄電池３１の定格容量などのデータを予め取得しており、蓄電池３１の定格容量に基づいて、需要家施設４００に要請する削減電力量を決定する。 Reduced power is the amount of reduced commercial power required during the target period. The host server 200 acquires data such as the rated capacity of the storage battery 31 of the customer facility 400 in advance, and determines the amount of reduced power requested to the customer facility 400 based on the rated capacity of the storage battery 31.
　放電モードは、対象期間において要請される蓄電装置３の放電動作であり、本実施形態では、出力優先モード、時間優先モードからいずれかが選択される。なお、放電モードは、上述の２つの放電モードだけでなく、出力優先モード、時間優先モードを含む３つ以上の放電モードからいずれか１つが選択される構成であってもよい。 The discharge mode is a discharge operation of the power storage device 3 requested in the target period, and in this embodiment, either the output priority mode or the time priority mode is selected. The discharge mode may be configured such that not only the above two discharge modes but also any one of three or more discharge modes including the output priority mode and the time priority mode is selected.
　要請取得部１１は、上位サーバ２００から送信されたＤＲ信号を取得（受信）する。このＤＲ信号は、例えば電力削減が要請される対象期間の直前、または電力削減が要請される対象期間の当日の朝、または電力削減が要請される対象期間の前日までに上位サーバ２００から送信される。 The request acquisition unit 11 acquires (receives) the DR signal transmitted from the upper server 200. This DR signal is transmitted from the upper server 200 immediately before the target period for which power reduction is requested, the morning of the target period for which power reduction is requested, or the day before the target period for which power reduction is requested. The
　そして、ＤＲ信号によって電力削減を要請された対象期間の開始時刻、または開始時刻の所定時間前になると、蓄電池制御システム１では、残電力量取得部１２が蓄電装置３のパワーコンディショナ３２から残電力量のデータを取得する。パワーコンディショナ３２は、蓄電池３１に蓄電されている電力量（残電力量）のデータを保持している。そして、パワーコンディショナ３２は、残電力量取得部１２から取得要求を受信した場合、現在の残電力量のデータを蓄電池制御システム１へ送信する。この残電力量のデータは、対象期間において蓄電装置３の蓄電池３１が放電可能な電力量に相当する。 Then, when the start time of the target period requested to reduce power by the DR signal, or a predetermined time before the start time, in the storage battery control system 1, the remaining power amount acquisition unit 12 is left from the power conditioner 32 of the power storage device 3. Get energy data. The power conditioner 32 holds data on the amount of power (remaining power amount) stored in the storage battery 31. When the power conditioner 32 receives an acquisition request from the remaining power amount acquisition unit 12, the power conditioner 32 transmits data on the current remaining power amount to the storage battery control system 1. The remaining power amount data corresponds to the amount of power that can be discharged by the storage battery 31 of the power storage device 3 in the target period.
　指示部１３は、ＤＲ信号によって要請された放電モード、削減電力量、残電力量に基づいて、対象期間における蓄電装置３の放電動作を指示する。本実施形態において、指示部１３は、パワーコンディショナ３２の通信部３２０と通信可能に構成されており、パワーコンディショナ３２に対する指示内容を電気信号で送信する。指示部１３と通信部３２０との間で有線通信が行われる場合、有線通信の仕様としては、ＬＡＮ（Local Area Network）、専用線通信などから適宜に選択されればよく、有線通信の仕様は限定されない。また、指示部１３と通信部３２０との間で無線通信が行われる場合、無線通信の仕様としては、無線ＬＡＮ、Bluetooth（登録商標）などから適宜に選択されればよく、無線通信の仕様は限定されない。 The instruction unit 13 instructs the discharge operation of the power storage device 3 in the target period based on the discharge mode, the reduced power amount, and the remaining power amount requested by the DR signal. In this embodiment, the instruction | indication part 13 is comprised so that communication with the communication part 320 of the power conditioner 32 is possible, and transmits the instruction | indication content with respect to the power conditioner 32 with an electrical signal. When wired communication is performed between the instruction unit 13 and the communication unit 320, the wired communication specification may be appropriately selected from LAN (Local Area Network), dedicated line communication, and the like. It is not limited. In addition, when wireless communication is performed between the instruction unit 13 and the communication unit 320, the wireless communication specification may be appropriately selected from wireless LAN, Bluetooth (registered trademark), and the like. It is not limited.
　以下、図２のフローチャートを用いて、ＤＲ信号による放電制御について説明する。 Hereinafter, the discharge control by the DR signal will be described with reference to the flowchart of FIG.
　まず、要請取得部１１がＤＲ信号を取得した後（Ｓ１）、電力削減が要請される対象期間の開始時刻または開始時刻の所定時間前になると、残電力量取得部１２がパワーコンディショナ３２から残電力量のデータを取得する（Ｓ２）。 First, after the request acquisition unit 11 acquires the DR signal (S1), when the start time of the target period for which power reduction is requested or a predetermined time before the start time, the remaining power amount acquisition unit 12 starts from the power conditioner 32. Data on the remaining power is acquired (S2).
　そして、指示部１３は、ＤＲ信号によって要請された放電モードを判別する（Ｓ３）。ＤＲ信号によって要請される放電モードは、出力優先モードまたは時間優先モードである。 And the instruction | indication part 13 discriminate | determines the discharge mode requested | required by DR signal (S3). The discharge mode requested by the DR signal is an output priority mode or a time priority mode.
　出力優先モードは、放電電力の高出力化を優先する動作モードであり、対象期間における電力需要量のピークが電力供給量に比べて大幅に高くなって、対象期間における電力需要量のピークを可能な限り抑える必要が生じた場合に要請される。したがって、出力優先モードでは、要請された削減電力量に基づいて、できるだけ高出力の放電動作を行うように放電制御がなされる。 The output priority mode is an operation mode that prioritizes higher discharge power output. The peak power demand during the target period is significantly higher than the power supply, allowing the peak power demand during the target period. It is requested when it is necessary to suppress as much as possible. Therefore, in the output priority mode, the discharge control is performed so as to perform a discharge operation with as high an output as possible based on the requested reduced electric energy.
　時間優先モードは、放電時間の長時間化を優先する動作モードであり、対象期間における電力需要量が長時間に亘って電力供給量に逼迫し、対象期間の全期間に亘って電力需要量を抑える必要が生じた場合に要請される。したがって、時間優先モードでは、要請された対象期間の全期間に亘って放電動作を継続させるように放電制御がなされる。 The time priority mode is an operation mode that prioritizes longer discharge times, where the power demand in the target period is constrained to the power supply over a long period of time, and the power demand over the entire period of the target period. Requested when there is a need to suppress. Therefore, in the time priority mode, the discharge control is performed so that the discharge operation is continued over the entire requested target period.
　指示部１３は、要請された放電モードが出力優先モードである場合、削減電力量を対象期間の時間長さ（対象期間長）で除した値を、放電電力の指示値（放電指示値：単位時間における放電電力量）に設定する。対象期間において、指示部１３は、この設定した放電指示値での放電動作をパワーコンディショナ３２に指示する（Ｓ６）。パワーコンディショナ３２は、指示部１３から指示された放電指示値に一致するように、対象期間における蓄電池３１の放電電力を制御する。この場合、蓄電池３１の残電力量が削減電力量以上であれば、パワーコンディショナ３２は、対象期間の全期間に亘って放電指示値を満たす放電制御を実行できる。また、蓄電池３１の残電力量が削減電力量未満であっても、パワーコンディショナ３２は、残電力量が残っている間は放電指示値を満たす放電制御を実行できる。しかし、残電力量が所定値以下にまで減少した時点で放電電力が０になって、パワーコンディショナ３２は、放電動作を停止させる。すなわち、出力優先モードでは、要請された削減電力量に基づいて、できるだけ高出力の放電動作を行うように放電制御がなされる。 When the requested discharge mode is the output priority mode, the instructing unit 13 obtains a value obtained by dividing the reduced power amount by the time length of the target period (target period length), as a discharge power instruction value (discharge instruction value: unit). Discharge electric energy in time). In the target period, the instruction unit 13 instructs the power conditioner 32 to perform a discharge operation with the set discharge instruction value (S6). The power conditioner 32 controls the discharge power of the storage battery 31 in the target period so as to coincide with the discharge instruction value instructed from the instruction unit 13. In this case, if the remaining power amount of the storage battery 31 is equal to or greater than the reduced power amount, the power conditioner 32 can execute the discharge control that satisfies the discharge instruction value over the entire target period. Further, even if the remaining power amount of the storage battery 31 is less than the reduced power amount, the power conditioner 32 can execute discharge control that satisfies the discharge instruction value while the remaining power amount remains. However, when the remaining power amount decreases to a predetermined value or less, the discharge power becomes zero, and the power conditioner 32 stops the discharge operation. In other words, in the output priority mode, discharge control is performed so as to perform a discharge operation with as high an output as possible based on the requested reduced power amount.
　指示部１３は、要請された放電モードが時間優先モードである場合、削減電力量が残電力量以上であるか否かを判定する（Ｓ４）。削減電力量が残電力量未満である場合、削減電力量を対象期間長で除した値を放電指示値に設定する。指示部１３は、対象期間において、この設定した放電指示値での放電動作をパワーコンディショナ３２に指示する（Ｓ６）。パワーコンディショナ３２は、指示部１３から指示された放電指示値に一致するように、対象期間における蓄電池３１の放電電力を制御する。この場合、削減電力量が蓄電池３１の残電力量未満であるので、パワーコンディショナ３２は、対象期間の全期間に亘って放電指示値を満たす放電制御を実行できる。さらに、この放電制御によって、対象期間の全期間に亘って高出力の放電動作を行うことも可能になる。 When the requested discharge mode is the time priority mode, the instruction unit 13 determines whether the reduced power amount is equal to or greater than the remaining power amount (S4). When the reduced power amount is less than the remaining power amount, a value obtained by dividing the reduced power amount by the target period length is set as the discharge instruction value. The instruction unit 13 instructs the power conditioner 32 to perform a discharge operation at the set discharge instruction value during the target period (S6). The power conditioner 32 controls the discharge power of the storage battery 31 in the target period so as to coincide with the discharge instruction value instructed from the instruction unit 13. In this case, since the reduced power amount is less than the remaining power amount of the storage battery 31, the power conditioner 32 can execute the discharge control that satisfies the discharge instruction value over the entire period of the target period. Furthermore, this discharge control makes it possible to perform a high-output discharge operation over the entire target period.
　また、要請された放電モードが時間優先モードであり、かつ削減電力量が残電力量以上である場合、指示部１３は、残電力量を対象期間長で除した値を放電指示値に設定する。指示部１３は、対象期間において、この設定した放電指示値での放電動作をパワーコンディショナ３２に指示する（Ｓ５）。パワーコンディショナ３２は、指示部１３から指示された放電指示値に一致するように、対象期間における蓄電池３１の放電電力を制御する。この場合、蓄電池３１の残電力量に基づいた放電制御がなされるので、削減電力量が残電力量以上であっても、パワーコンディショナ３２は、対象期間の全期間に亘って放電指示値を満たす放電制御を実行できる。 When the requested discharge mode is the time priority mode and the reduced power amount is equal to or greater than the remaining power amount, the instruction unit 13 sets a value obtained by dividing the remaining power amount by the target period length as the discharge instruction value. . The instruction unit 13 instructs the power conditioner 32 to perform a discharge operation at the set discharge instruction value during the target period (S5). The power conditioner 32 controls the discharge power of the storage battery 31 in the target period so as to coincide with the discharge instruction value instructed from the instruction unit 13. In this case, since discharge control based on the remaining power amount of the storage battery 31 is performed, even if the reduced power amount is equal to or greater than the remaining power amount, the power conditioner 32 sets the discharge instruction value over the entire target period. The discharge control to satisfy can be executed.
　したがって、削減電力量と残電力量との大小関係に関わらず、時間優先モードでは、要請された対象期間の全期間に亘って放電動作を継続させるように放電制御がなされる。 Therefore, regardless of the magnitude relationship between the reduced power amount and the remaining power amount, in the time priority mode, discharge control is performed so as to continue the discharge operation over the entire requested target period.
　蓄電池制御システム１が出力優先モードの放電制御を行った場合の動作例を、図３Ａ、図３Ｂに示す。 FIG. 3A and FIG. 3B show an operation example when the storage battery control system 1 performs discharge control in the output priority mode.
　図３Ａは、ＤＲ信号がない場合に需要家施設４００で実施される充放電制御を示す。この充放電制御は、負荷９の総需要電力、蓄電池３１の残電力量などに基づいて実施される。 FIG. 3A shows charge / discharge control performed in the customer facility 400 when there is no DR signal. This charge / discharge control is performed based on the total demand power of the load 9, the remaining power amount of the storage battery 31, and the like.
　図３Ｂは、出力優先モードを要請するＤＲ信号があった場合に需要家施設４００で実施される充放電制御を示す。出力優先モードを要請するＤＲ信号があった場合、蓄電池制御システム１の指示部１３は、電力削減の対象期間Ｔ１における放電指示値を、削減電力量を対象期間長（対象期間Ｔ１の時間長さ）で除した値である放電指示値Ｐ１に設定する。パワーコンディショナ３２は、指示部１３から指示された放電指示値Ｐ１に一致するように、対象期間Ｔ１における蓄電池３１の放電電力を制御する。図３Ｂでは、対象期間Ｔ１中の時刻ｔ１で残電力量が所定値以下にまで減少して、パワーコンディショナ３２は、時刻ｔ１以降の放電動作を停止させている。 FIG. 3B shows charge / discharge control performed in the customer facility 400 when there is a DR signal requesting the output priority mode. When there is a DR signal for requesting the output priority mode, the instruction unit 13 of the storage battery control system 1 sets the discharge instruction value in the power reduction target period T1, the reduced power amount as the target period length (the time length of the target period T1). ) Is set to a discharge instruction value P1 which is a value divided by. The power conditioner 32 controls the discharge power of the storage battery 31 in the target period T1 so as to coincide with the discharge instruction value P1 instructed from the instruction unit 13. In FIG. 3B, the remaining power amount is reduced to a predetermined value or less at time t1 during the target period T1, and the power conditioner 32 stops the discharging operation after time t1.
　次に、蓄電池制御システム１が時間優先モードの放電制御を行った場合の動作例を、図４Ａ、図４Ｂに示す。 Next, FIG. 4A and FIG. 4B show an operation example when the storage battery control system 1 performs the discharge control in the time priority mode.
　図４Ａは、ＤＲ信号がない場合に需要家施設４００で実施される充放電制御を示す。この充放電制御は、負荷９の総需要電力、蓄電池３１の残電力量などに基づいて実施される。 FIG. 4A shows the charge / discharge control performed in the customer facility 400 when there is no DR signal. This charge / discharge control is performed based on the total demand power of the load 9, the remaining power amount of the storage battery 31, and the like.
　図４Ｂは、時間優先モードを要請するＤＲ信号があった場合に、需要家施設４００で実施される充放電制御を示す。この場合、電力削減の対象期間Ｔ１１における削減電力量が残電力量以上となる需要家施設４００を想定している。時間優先モードを要請するＤＲ信号があった場合、蓄電池制御システム１の指示部１３は、対象期間Ｔ１１における放電指示値を、残電力量を対象期間長（対象期間Ｔ１１の時間長さ）で除した値である放電指示値Ｐ１１に設定する。パワーコンディショナ３２は、指示部１３から指示された放電指示値Ｐ１１に一致するように、対象期間Ｔ１１における蓄電池３１の放電電力を制御する。図４Ｂでは、対象期間Ｔ１１の全期間に亘って放電指示値Ｐ１１を満たす放電制御を実行できる。 FIG. 4B shows charge / discharge control performed in the customer facility 400 when there is a DR signal requesting the time priority mode. In this case, it is assumed that the customer facility 400 has a reduced power amount in the power reduction target period T11 that is equal to or greater than the remaining power amount. When there is a DR signal requesting the time priority mode, the instruction unit 13 of the storage battery control system 1 divides the discharge instruction value in the target period T11 by the remaining power amount by the target period length (time length of the target period T11). Is set to the discharge instruction value P11. The power conditioner 32 controls the discharge power of the storage battery 31 in the target period T11 so as to coincide with the discharge instruction value P11 instructed from the instruction unit 13. In FIG. 4B, discharge control satisfying the discharge instruction value P11 can be executed over the entire period of the target period T11.
　たとえば、電力系統７側の発電設備、変電設備、送電設備などでトラブルが発生した場合、電力供給量が低下するため、電力会社またはアグリゲータから需要家施設４００へＤＲ信号が伝達される。このとき、需要家施設４００に備えられている蓄電池３１は、電力削減要請の対象期間の開始時に十分な電力量が蓄えられていないことが想定される。従来の放電制御では、蓄電池３１から出力可能な最大電力を出力させるため、蓄電池３１の残電力量が短時間で尽きてしまい、需要家施設４００において長時間に亘る電力削減を実施できなかった。また、この従来の放電制御では最大電力で放電するため、電力系統７の系統周波数の増大や、系統電圧の上昇を引き起こす可能性がある。 For example, when a trouble occurs in the power generation facility, the substation facility, the power transmission facility, etc. on the power system 7 side, the power supply amount decreases, so that the DR signal is transmitted from the power company or the aggregator to the customer facility 400. At this time, it is assumed that the storage battery 31 provided in the customer facility 400 does not store a sufficient amount of power at the start of the target period of the power reduction request. In the conventional discharge control, since the maximum power that can be output from the storage battery 31 is output, the remaining power amount of the storage battery 31 is exhausted in a short time, and the customer facility 400 cannot perform power reduction over a long time. In addition, since this conventional discharge control discharges with the maximum power, there is a possibility that the system frequency of the power system 7 increases and the system voltage increases.
　そこで、本実施形態の蓄電池制御システム１は、放電時間の長時間化を優先する時間優先モードによる電力削減要請があった場合に、対象期間の全期間に亘って残電力量によって賄うことができる放電指示値を設定する。したがって、蓄電池制御システム１は、電力削減要請があった場合に長時間に亘る電力削減を実施することができる。 Therefore, the storage battery control system 1 of the present embodiment can cover the remaining power amount over the entire target period when there is a power reduction request in the time priority mode in which priority is given to a longer discharge time. Set the discharge indication value. Therefore, the storage battery control system 1 can carry out power reduction for a long time when there is a power reduction request.
　また、ＤＲ信号によって要請される他の放電モードとして、ＤＲ効果優先モードが用いられる場合がある。ＤＲ効果優先モードとは、例えば電力削減の対象期間の１日以上前に発行され、電力削減要請の対象期間の前に蓄電池３１を満充電にし、満充電状態の蓄電池３１が対象期間で用いられる。この場合、蓄電池３１が有する最大の電力削減効果が期待できる。しかしながら、電力系統７側のトラブルが発生した場合、需要家施設４００側は、電力削減の要請に対して緊急に対応しなければならず、蓄電池３１には、十分な電力量が蓄えられていないことが想定される。 Also, the DR effect priority mode may be used as another discharge mode required by the DR signal. The DR effect priority mode is issued, for example, at least one day before the power reduction target period, and the storage battery 31 is fully charged before the power reduction request target period, and the fully charged storage battery 31 is used in the target period. . In this case, the maximum power reduction effect of the storage battery 31 can be expected. However, when a trouble occurs on the power system 7 side, the customer facility 400 side must respond urgently to a request for power reduction, and the storage battery 31 does not store a sufficient amount of power. It is assumed that
　一方、本実施形態では、出力優先モードまたは時間優先モードが放電モードとして設定されることで、緊急の電力削減要請にも、蓄電池３１の現在の残電力量を用いて対応することができる。 On the other hand, in the present embodiment, the output priority mode or the time priority mode is set as the discharge mode, so that an urgent power reduction request can be handled using the current remaining power amount of the storage battery 31.
　また図３Ｂにおいて、Ｐ２は、対象期間Ｔ１における需要家施設４００の総需要電力である。したがって、放電指示値Ｐ１による放電電力のうち、総需要電力Ｐ２を上回る余剰電力は、逆潮流電力Ｐ３となって、電力系統７側へ逆潮流する。 In FIG. 3B, P2 is the total demand power of the customer facility 400 in the target period T1. Accordingly, surplus power exceeding the total demand power P2 in the discharge power based on the discharge instruction value P1 becomes the reverse power flow P3 and flows backward to the power system 7 side.
　また図４Ｂにおいて、Ｐ１２は、対象期間Ｔ１１における需要家施設４００の総需要電力である。したがって、放電指示値Ｐ１１による放電電力のうち、総需要電力Ｐ１２を上回る余剰電力は、逆潮流電力Ｐ１３となって、電力系統７側へ逆潮流する。 Moreover, in FIG. 4B, P12 is the total power demand of the customer facility 400 in the target period T11. Accordingly, surplus power exceeding the total demand power P12 in the discharge power based on the discharge command value P11 becomes the reverse power flow P13 and flows backward to the power system 7.
　しかしながら、電力系統７の需給バランスによっては、逆潮流電力Ｐ３，Ｐ１３によって、電力系統７の系統周波数の増大や、系統電圧の上昇が引き起こされる可能性がある。 However, depending on the supply and demand balance of the power system 7, the reverse power flow P3 and P13 may cause an increase in the system frequency of the power system 7 and an increase in the system voltage.
　そこで、配電システム１０は、電力系統７に電力センサ６を備えており、電力センサ６は、分電盤２から電力系統７へ逆潮流する逆潮流電力（売電電力）を測定し、逆潮流電力データを蓄電装置３のパワーコンディショナ３２へ定期的（サンプリング周期毎）に送信する。したがって、パワーコンディショナ３２は、逆潮流電力の発生状況を知ることができる。なお、電力センサ６は、電力系統７の測定電圧と測定電流との位相差に基づいて逆潮流電力が発生したか否かを判断できる。また、電力系統７に電流センサを設けて、この電流センサの測定電流と、需要家施設４００内の測定電圧とに基づいて逆潮流電力が測定されてもよい。 Therefore, the power distribution system 10 includes a power sensor 6 in the power system 7, and the power sensor 6 measures reverse power flow (power sales power) that flows backward from the distribution board 2 to the power system 7, and reverse power flow. The power data is transmitted periodically (every sampling period) to the power conditioner 32 of the power storage device 3. Therefore, the power conditioner 32 can know the generation state of reverse power flow. The power sensor 6 can determine whether reverse power flow has occurred based on the phase difference between the measured voltage and the measured current of the power system 7. Further, a current sensor may be provided in the power system 7 and the reverse power flow may be measured based on the measured current of the current sensor and the measured voltage in the customer facility 400.
　ＤＲ信号には、逆潮流の許可／不許可の情報がさらに含まれており、指示部１３は、放電指示値に加えて、逆潮流の許可／不許可の情報もパワーコンディショナ３２に送信する。 The DR signal further includes permission / non-permission information for reverse flow, and the instruction unit 13 transmits information indicating permission / non-permission of reverse flow to the power conditioner 32 in addition to the discharge instruction value. .
　逆潮流電力が許可されている場合、パワーコンディショナ３２は、上述の図３Ｂ、図４Ｂに示す放電制御を行う。 When reverse power flow is permitted, the power conditioner 32 performs the discharge control shown in FIGS. 3B and 4B described above.
　一方、逆潮流電力が許可されていない場合、パワーコンディショナ３２は、図３Ｃ、図４Ｃに示す放電制御を行う。 On the other hand, when reverse power flow is not permitted, the power conditioner 32 performs the discharge control shown in FIGS. 3C and 4C.
　出力優先モードを要請するＤＲ信号があり、かつ逆潮流電力が許可されていない場合、パワーコンディショナ３２は、図３Ｃに示すように、放電指示値Ｐ１以下の範囲で、逆潮流電力が発生しないように放電制御を行う。すなわち、パワーコンディショナ３２は、総需要電力Ｐ２が放電指示値Ｐ１以下であれば、放電電力が総需要電力Ｐ２に一致するように放電制御を行う。また、パワーコンディショナ３２は、総需要電力Ｐ２が放電指示値Ｐ１を上回る場合、放電電力が放電指示値Ｐ１に一致するように放電制御を行う。図３Ｃでは、対象期間Ｔ１中の時刻ｔ２で残電力量が所定値以下にまで減少して、パワーコンディショナ３２は、時刻ｔ２以降の放電動作を停止させている。 When there is a DR signal requesting the output priority mode and the reverse power flow is not permitted, the power conditioner 32 does not generate the reverse power flow in the range of the discharge instruction value P1 or less as shown in FIG. 3C. Thus, discharge control is performed. That is, if the total demand power P2 is equal to or less than the discharge instruction value P1, the power conditioner 32 performs discharge control so that the discharge power matches the total demand power P2. Further, when the total demand power P2 exceeds the discharge instruction value P1, the power conditioner 32 performs discharge control so that the discharge power matches the discharge instruction value P1. In FIG. 3C, the remaining power amount is reduced to a predetermined value or less at time t2 during the target period T1, and the power conditioner 32 stops the discharging operation after time t2.
　時間優先モードを要請するＤＲ信号があり、かつ逆潮流電力が許可されていない場合、パワーコンディショナ３２は、図４Ｃに示すように、放電指示値Ｐ１１以下の範囲で、逆潮流電力が発生しないように放電制御を行う。すなわち、パワーコンディショナ３２は、総需要電力Ｐ１２が放電指示値Ｐ１１以下であれば、放電電力が総需要電力Ｐ１２に一致するように放電制御を行う。また、パワーコンディショナ３２は、総需要電力Ｐ１２が放電指示値Ｐ１１を上回る場合、放電電力が放電指示値Ｐ１１に一致するように放電制御を行う。 When there is a DR signal requesting the time priority mode and the reverse flow power is not permitted, the power conditioner 32 does not generate the reverse flow power within the range of the discharge instruction value P11 or less as shown in FIG. 4C. Thus, discharge control is performed. That is, if the total demand power P12 is equal to or less than the discharge instruction value P11, the power conditioner 32 performs the discharge control so that the discharge power matches the total demand power P12. Further, when the total demand power P12 exceeds the discharge instruction value P11, the power conditioner 32 performs the discharge control so that the discharge power matches the discharge instruction value P11.
　また、蓄電池制御システム１は、図１に示すように削減可能量取得部１４をさらに備えることが好ましい。削減可能量取得部１４は、削減可能電力量のデータを取得する機能を備える。削減可能電力量は、需要家施設４００において対象期間に削減可能な商用電力の電力量である。たとえば、削減可能量取得部１４は、情報端末３００との間で通信を行う機能を備える。情報端末３００は、パーソナルコンピュータ、スマートフォン、携帯電話、専用端末などのいずれかであり、ユーザ操作によって対象期間における削減可能電力量のデータが入力される。情報端末３００は、削減可能電力量のデータを蓄電池制御システム１へ送信する。情報端末３００と蓄電池制御システム１との間の通信経路は、直接、または需要家施設４００に設置されたネットワークデバイスを介して、または広域ネットワーク１００および需要家施設４００に設置されたネットワークデバイスを介して構築される。あるいは、削減可能電力量のデータを入力する操作部が蓄電池制御システム１に設けられていてもよい。 Moreover, it is preferable that the storage battery control system 1 further includes a reducible amount acquisition unit 14 as shown in FIG. The reducible amount acquisition unit 14 has a function of acquiring reducible power amount data. The reducible power amount is the amount of commercial power that can be reduced in the target period in the customer facility 400. For example, the reducible amount acquiring unit 14 has a function of performing communication with the information terminal 300. The information terminal 300 is any one of a personal computer, a smartphone, a mobile phone, a dedicated terminal, and the like, and data on the amount of power that can be reduced in the target period is input by a user operation. The information terminal 300 transmits data on the amount of power that can be reduced to the storage battery control system 1. A communication path between the information terminal 300 and the storage battery control system 1 is directly or through a network device installed in the customer facility 400, or through a network device installed in the wide area network 100 and the customer facility 400. Built. Or the operation part which inputs the data of the electric energy which can be reduced may be provided in the storage battery control system 1. FIG.
　具体的に、要請取得部１１がＤＲ信号を取得すると、蓄電池制御システム１は、ＤＲ信号によって通知された電力削減の対象期間および削減電力量の情報を情報端末３００へ送信する。情報端末３００は、モニタ画面に対象期間および削減電力量の情報を表示し、ユーザは、対象期間における削減可能電力量のデータを入力する。この削減可能電力量は、需要家施設４００の電力の使用形態によって決定される。たとえば、需要家施設４００の人の健康状態、人数などによっては、空調機器などの負荷９の使用を十分に抑えることができない。このような場合、ユーザは、受け入れることができる削減可能電力量のデータを情報端末３００に入力する。 Specifically, when the request acquisition unit 11 acquires the DR signal, the storage battery control system 1 transmits the information on the power reduction target period and the reduced power amount notified by the DR signal to the information terminal 300. The information terminal 300 displays information on the target period and the reduced power amount on the monitor screen, and the user inputs data on the power that can be reduced in the target period. The amount of power that can be reduced is determined according to the power usage pattern of the customer facility 400. For example, the use of the load 9 such as an air conditioner cannot be sufficiently suppressed depending on the health condition and the number of people of the customer facility 400. In such a case, the user inputs data of the reducible power amount that can be accepted into the information terminal 300.
　そして、指示部１３は、ＤＲ信号によって要請される削減電力量が削減可能電力量を上回る場合、削減電力量として削減可能電力量を用いる。すなわち、指示部１３は、要請された放電モードが出力優先モードである場合、削減可能電力量を対象期間長で除した値を放電指示値に設定する。また、要請された放電モードが時間優先モードであり、かつ削減可能電力量が残電力量未満である場合、指示部１３は、削減可能電力量を対象期間長で除した値を放電指示値に設定する。また、要請された放電モードが時間優先モードであり、かつ削減可能電力量が残電力量以上である場合、指示部１３は、残電力量を対象期間長で除した値を放電指示値に設定する。 The instruction unit 13 uses the reducible power amount as the reduced power amount when the reduced power amount requested by the DR signal exceeds the reducible power amount. That is, when the requested discharge mode is the output priority mode, the instruction unit 13 sets a value obtained by dividing the reducible power amount by the target period length as the discharge instruction value. When the requested discharge mode is the time priority mode and the reducible power amount is less than the remaining power amount, the instruction unit 13 sets a value obtained by dividing the reducible power amount by the target period length as a discharge instruction value. Set. When the requested discharge mode is the time priority mode and the reducible power amount is equal to or greater than the remaining power amount, the instruction unit 13 sets a value obtained by dividing the remaining power amount by the target period length as the discharge instruction value. To do.
　したがって、蓄電池制御システム１は、需要家施設４００の電力使用形態に応じて、需要家施設４００における利便性を損なわない放電指示値を設定できる。さらには、蓄電池３１の残電力量の変動幅が小さくなるので、蓄電池制御システム１は、蓄電池３１の長寿命化を図ることができる。 Therefore, the storage battery control system 1 can set a discharge instruction value that does not impair the convenience in the customer facility 400 according to the power usage pattern of the customer facility 400. Furthermore, since the fluctuation range of the remaining power amount of the storage battery 31 is reduced, the storage battery control system 1 can extend the life of the storage battery 31.
　また、上位サーバ２００は、ＤＲ信号を送信した後、このＤＲ信号による対象期間中にモード変更要請を送信する場合がある。モード変更要請は、対象期間中に放電モードの変更を要請する信号である。たとえば、上位サーバ２００は、ＤＲ信号によって時間優先モードを要請した後に、出力優先モードへの変更を要請する場合がある。上位サーバ２００は、ＤＲ信号を送信するとき、蓄電池３１から取り出せる電力量を把握できていない。このため、上位サーバ２００が時間優先モードを要請するＤＲ信号を送信した場合に、蓄電池３１の残電力量が少な過ぎて、実際に削減された電力量が十分でなければ、停電の可能性が高くなる。そこで、上位サーバ２００は、対象期間中であっても、モード変更要請を送信して、出力優先モードへの変更を要請することがある。 In addition, after transmitting the DR signal, the upper server 200 may transmit a mode change request during the target period using this DR signal. The mode change request is a signal for requesting change of the discharge mode during the target period. For example, the upper server 200 may request a change to the output priority mode after requesting the time priority mode by the DR signal. The upper server 200 cannot grasp the amount of power that can be taken from the storage battery 31 when transmitting the DR signal. For this reason, when the upper server 200 transmits a DR signal requesting the time priority mode, if the remaining power amount of the storage battery 31 is too small and the actually reduced power amount is not sufficient, there is a possibility of a power failure. Get higher. Therefore, the upper server 200 may request a change to the output priority mode by transmitting a mode change request even during the target period.
　蓄電池制御システム１では、指示部１３が時間優先モードで放電指示値を設定しているときに、要請取得部１１が出力優先モードへの変更を要請するモード変更要請を取得すると、以降、指示部１３が出力優先モードで放電指示値を設定する。具体的に、指示部１３は、対象期間における削減電力量の未達成量を、対象期間の残り時間の長さで除することで、以降の放電指示値を設定する。この場合、対象期間中に残電力量が所定値以下にまで減少して、パワーコンディショナ３２が放電動作を停止する可能性があるが、停電を回避できる可能性は高くなる。 In the storage battery control system 1, when the request acquisition unit 11 acquires a mode change request for requesting a change to the output priority mode when the instruction unit 13 sets the discharge instruction value in the time priority mode, the instruction unit 13 sets the discharge instruction value in the output priority mode. Specifically, the instruction unit 13 sets the subsequent discharge instruction value by dividing the unachieved amount of the reduced power amount in the target period by the remaining time of the target period. In this case, the remaining power amount is reduced to a predetermined value or less during the target period, and the power conditioner 32 may stop the discharge operation. However, the possibility that a power failure can be avoided increases.
　また、上位サーバ２００が出力優先モードを要請するＤＲ信号を送信した場合に、実際に削減された電力量が必要以上に多く、停電の可能性が非常に低くなることが考えられる。この場合、要請された対象期間の全期間に亘って放電動作を継続させるために、上位サーバ２００は、対象期間中であっても、モード変更要請を送信して、時間優先モードへの変更を要請することがある。 Also, when the host server 200 transmits a DR signal requesting the output priority mode, the amount of power actually reduced is more than necessary, and the possibility of a power outage is very low. In this case, in order to continue the discharge operation throughout the requested target period, the upper server 200 transmits a mode change request to change to the time priority mode even during the target period. May ask.
　蓄電池制御システム１では、指示部１３が出力優先モードで放電指示値を設定しているときに、要請取得部１１が時間優先モードへの変更を要請するモード変更要請を取得すると、以降、指示部１３が時間優先モードで放電指示値を設定する。具体的に、指示部１３は、削減電力量の未達成量が現在の残電力量（モード変更要請の取得時以降に蓄電池３１が放電可能な電力量）未満である場合、削減電力量の未達成量を対象期間の残り時間の長さで除した値を放電指示値に設定する。また、指示部１３は、削減電力量の未達成量が現在の残電力量以上である場合、現在の残電力量を対象期間の残り時間の長さで除した値を放電指示値に設定する。この場合、要請された対象期間の全期間に亘って放電動作を継続させることができる。 In the storage battery control system 1, when the request acquisition unit 11 acquires a mode change request for requesting a change to the time priority mode when the instruction unit 13 sets the discharge instruction value in the output priority mode, the instruction unit 13 sets the discharge instruction value in the time priority mode. Specifically, when the unachieved amount of reduced power is less than the current remaining power (the amount of power that can be discharged from the storage battery 31 after the acquisition of the mode change request), the instructing unit 13 A value obtained by dividing the achievement amount by the remaining time of the target period is set as the discharge instruction value. Moreover, the instruction | indication part 13 sets the value which remove | divided the present remaining power amount by the length of the remaining time of an object period to a discharge instruction value, when the unachieved amount of reduction electric energy is more than the present remaining power amount . In this case, the discharge operation can be continued throughout the requested target period.
　なお、蓄電池制御システム１は、１台の蓄電池制御装置で構成される形態以外に、需要家施設４００内の複数の装置で構成される形態であってもよい。 The storage battery control system 1 may be configured by a plurality of devices in the customer facility 400 in addition to the configuration configured by one storage battery control device.
　また、蓄電装置３が蓄電池制御システム１を備えて、蓄電池制御システム１と蓄電装置３とが一体に構成されていてもよい。 Further, the power storage device 3 may include the storage battery control system 1, and the storage battery control system 1 and the power storage device 3 may be configured integrally.
　次に、図５は本実施形態の変形例として、蓄電池制御システム１Ａを示す。蓄電池制御システム１Ａは、広域ネットワーク１００上の１つのサーバで構成されている。 Next, FIG. 5 shows a storage battery control system 1A as a modification of the present embodiment. The storage battery control system 1 </ b> A is configured by one server on the wide area network 100.
　蓄電池制御システム１Ａは、要請取得部１１Ａ、残電力量取得部１２Ａ、指示部１３Ａ、削減可能量取得部１４Ａ、データベース１５Ａを備える。要請取得部１１Ａ、残電力量取得部１２Ａ、指示部１３Ａ、削減可能量取得部１４Ａのそれぞれは、上述の蓄電池制御システム１の要請取得部１１、残電力量取得部１２、指示部１３、削減可能量取得部１４とほぼ同様の機能を有する。 The storage battery control system 1A includes a request acquisition unit 11A, a remaining power amount acquisition unit 12A, an instruction unit 13A, a reducible amount acquisition unit 14A, and a database 15A. Each of the request acquisition unit 11A, the remaining power amount acquisition unit 12A, the instruction unit 13A, and the reducible amount acquisition unit 14A includes the request acquisition unit 11, the remaining power amount acquisition unit 12, the instruction unit 13, and the reduction of the storage battery control system 1 described above. It has substantially the same function as the possible amount acquisition unit 14.
　また、パワーコンディショナ３２の通信部３２１は、需要家施設４００に設置された電力の遠隔検針用のスマートメータ、またはルータ、ホームゲートウェイなどのネットワークデバイスを介して広域ネットワーク１００に接続している。すなわち、蓄電池制御システム１Ａとパワーコンディショナ３２とは、広域ネットワーク１００を介して通信することができる。 In addition, the communication unit 321 of the power conditioner 32 is connected to the wide area network 100 via a network device such as a smart meter for remote meter reading of electric power installed in the customer facility 400 or a router or a home gateway. That is, the storage battery control system 1 </ b> A and the power conditioner 32 can communicate via the wide area network 100.
　そして、蓄電池制御システム１Ａにおいて、要請取得部１１Ａは、広域ネットワーク１００上の上位サーバ２００からＤＲ信号を受け取る。 In the storage battery control system 1A, the request acquisition unit 11A receives the DR signal from the upper server 200 on the wide area network 100.
　さらに、残電力量取得部１２Ａは、広域ネットワーク１００を介して、パワーコンディショナ３２から残電力量のデータを取得する。削減可能量取得部１４Ａは、広域ネットワーク１００を介して、情報端末３００から削減可能電力量のデータを受け取る。したがって、蓄電池制御システム１Ａは、複数の需要家施設４００（４０１，４０２，４０３，．．．）から、残電力量のデータおよび削減可能電力量のデータを受け取ることができる。 Furthermore, the remaining power amount acquisition unit 12A acquires remaining power amount data from the power conditioner 32 via the wide area network 100. The reducible amount acquisition unit 14 </ b> A receives data on the reducible power amount from the information terminal 300 via the wide area network 100. Therefore, the storage battery control system 1A can receive the remaining power amount data and the reducible power amount data from the plurality of customer facilities 400 (401, 402, 403,...).
　蓄電池制御システム１Ａにおいて、データベース１５Ａは、残電力量のデータおよび削減可能電力量のデータを、複数の需要家施設４００のそれぞれに対応して記憶する。 In the storage battery control system 1A, the database 15A stores the remaining power amount data and the reducible power amount data corresponding to each of the plurality of customer facilities 400.
　指示部１３Ａは、複数の需要家施設４００のそれぞれに対応して、ＤＲ信号によって要請された放電モード、削減電力量、残電力量に基づいて、対象期間における放電指示値を個別に設定する。指示部１３Ａは、広域ネットワーク１００を介して、複数の需要家施設４００のそれぞれのパワーコンディショナ３２に対して、放電動作（放電指示値）を指示する。複数の需要家施設４００のそれぞれの放電指示値は、データベース１５Ａに記憶されて、需要家施設４００毎に管理される。 The instruction unit 13A individually sets the discharge instruction value in the target period based on the discharge mode, the reduced electric energy, and the remaining electric energy requested by the DR signal corresponding to each of the plurality of customer facilities 400. The instruction unit 13A instructs a discharge operation (discharge instruction value) to each power conditioner 32 of the plurality of customer facilities 400 via the wide area network 100. The discharge instruction values of the plurality of customer facilities 400 are stored in the database 15A and managed for each customer facility 400.
　したがって、蓄電池制御システム１Ａは、複数の需要家施設４００に対して、電力削減要請があった場合に長時間に亘る電力削減を個別に実施することができる。 Therefore, the storage battery control system 1A can individually implement power reduction over a long period of time when there is a power reduction request for the plurality of customer facilities 400.
　なお、蓄電池制御システム１Ａは、広域ネットワーク１００上の複数のサーバで構成されてもよい。この場合、蓄電池制御システム１Ａは、たとえばクラウドコンピューティングシステムで構成される。 Note that the storage battery control system 1 </ b> A may be configured by a plurality of servers on the wide area network 100. In this case, the storage battery control system 1A is configured by, for example, a cloud computing system.
　以上のように、実施形態に係る第１の態様の蓄電池制御システム１または１Ａは、商用電源８および蓄電装置３から負荷９へ電力を供給する需要家施設４００の配電システム１０に組み合わされる。この蓄電池制御システム１または１Ａは、要請取得部１１または１１Ａと、指示部１３または１３Ａとを備える。要請取得部１１または１１Ａは、商用電源８から負荷９へ供給される商用電力の削減を要請する対象期間、対象期間において要請される商用電力の削減電力量、対象期間において要請される蓄電装置３の放電動作である放電モードの各情報を含む電力削減要請を取得する。指示部１３または１３Ａは、蓄電装置３に放電動作を指示する。放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能である。そして、指示部１３または１３Ａは、放電モード、削減電力量に基づいて、対象期間における蓄電装置３の放電動作を指示する。 As described above, the storage battery control system 1 or 1A of the first aspect according to the embodiment is combined with the power distribution system 10 of the customer facility 400 that supplies power from the commercial power supply 8 and the power storage device 3 to the load 9. The storage battery control system 1 or 1A includes a request acquisition unit 11 or 11A and an instruction unit 13 or 13A. The request acquisition unit 11 or 11A includes a target period for requesting reduction of commercial power supplied from the commercial power supply 8 to the load 9, a reduction amount of commercial power requested in the target period, and the power storage device 3 requested in the target period. The power reduction request including each information of the discharge mode that is the discharge operation is acquired. Instructing unit 13 or 13A instructs power storage device 3 to perform a discharging operation. The discharge mode can be set to either an output priority mode that prioritizes higher discharge power output or a time priority mode that prioritizes longer discharge time. Then, instructing unit 13 or 13A instructs the discharging operation of power storage device 3 in the target period based on the discharging mode and the reduced power amount.
　したがって、蓄電池制御システム１または１Ａは、放電時間の長時間化を優先する時間優先モードによる電力削減要請があった場合に、長時間に亘って放電できるように蓄電装置３の放電動作を指示できる。すなわち、蓄電池制御システム１または１Ａは、電力削減要請があった場合に長時間に亘る電力削減を実施することができる。 Therefore, the storage battery control system 1 or 1A can instruct the discharge operation of the power storage device 3 so that the battery can be discharged for a long time when there is a power reduction request in the time priority mode in which priority is given to a longer discharge time. . That is, the storage battery control system 1 or 1A can perform power reduction over a long time when there is a power reduction request.
　実施形態に係る第２の態様の蓄電池制御システム１または１Ａは、第１の態様において、対象期間において蓄電装置３の蓄電池３１が放電可能な電力量である残電力量の情報を取得する残電力量取得部１２または１２Ａをさらに備えることが好ましい。指示部１３または１３Ａは、放電モード、削減電力量、残電力量に基づいて、対象期間における蓄電装置３の放電動作を指示する。 In the first aspect, the storage battery control system 1 or 1A according to the second aspect according to the embodiment acquires the remaining power information that is the amount of power that can be discharged by the storage battery 31 of the power storage device 3 in the target period. It is preferable to further include a quantity acquisition unit 12 or 12A. Instructing unit 13 or 13A instructs the discharging operation of power storage device 3 in the target period based on the discharge mode, the reduced power amount, and the remaining power amount.
　したがって、蓄電池制御システム１または１Ａは、放電時間の長時間化を優先する時間優先モードによる電力削減要請があった場合に、対象期間の全期間に亘って残電力量によって賄うことができるように蓄電装置３の放電動作を指示できる。すなわち、蓄電池制御システム１または１Ａは、電力削減要請があった場合に、残電力量を用いて長時間に亘る電力削減を実施することができる。 Therefore, the storage battery control system 1 or 1A can cover the remaining power amount over the entire target period when there is a power reduction request in the time priority mode that prioritizes longer discharge time. A discharge operation of the power storage device 3 can be commanded. That is, when there is a power reduction request, the storage battery control system 1 or 1A can perform power reduction over a long period of time using the remaining power amount.
　実施形態に係る第３の態様の蓄電池制御システム１または１Ａでは、第２の態様において、指示部１３または１３Ａは、放電モードが出力優先モードである場合、削減電力量を対象期間の時間長で除することで、対象期間における蓄電池３１の放電電力を決定することが好ましい。また、指示部１３または１３Ａは、放電モードが時間優先モードである場合、削減電力量が残電力量以上であれば、残電力量を対象期間の時間長で除することで、対象期間における蓄電池３１の放電電力を決定することが好ましい。さらに、指示部１３または１３Ａは、放電モードが時間優先モードである場合、削減電力量が残電力量未満であれば、削減電力量を対象期間の時間長で除することで、対象期間における蓄電池３１の放電電力を決定することが好ましい。 In the storage battery control system 1 or 1A of the third aspect according to the embodiment, in the second aspect, when the discharge mode is the output priority mode, the instructing unit 13 or 13A sets the reduced power amount by the length of the target period. It is preferable to determine the discharge power of the storage battery 31 in the target period. In addition, when the discharge mode is the time priority mode, the instructing unit 13 or 13A divides the remaining power amount by the time length of the target period if the reduced power amount is equal to or greater than the remaining power amount, so that the storage battery in the target period It is preferable to determine the discharge power of 31. Furthermore, when the discharge mode is the time-priority mode, the instruction unit 13 or 13A divides the reduced power amount by the time length of the target period if the reduced power amount is less than the remaining power amount. It is preferable to determine the discharge power of 31.
　したがって、蓄電池制御システム１または１Ａは、放電時間の長時間化を優先する時間優先モードによる電力削減要請があった場合に、対象期間の全期間に亘って残電力量によって賄うことができるように蓄電装置３の放電動作を指示できる。削減電力量が残電力量以上であれば、蓄電池制御システム１または１Ａは、残電力量を対象期間の全期間に亘って使い切る放電制御を行うので、残電力量を用いて長時間に亘る電力削減を実施することができる。また、削減電力量が残電力量未満であれば、蓄電池制御システム１または１Ａは、残電力量から削減電力量のみを放電させるので、放電制御後に蓄電池３１の残電力量を確保することができ、放電制御後の利便性が向上する。さらに、放電電力の高出力化を優先する出力優先モードでは、要請された削減電力量に基づいて、できるだけ高出力の放電動作を行うように放電制御がなされる。 Therefore, the storage battery control system 1 or 1A can cover the remaining power amount over the entire target period when there is a power reduction request in the time priority mode that prioritizes longer discharge time. A discharge operation of the power storage device 3 can be commanded. If the reduced power amount is equal to or greater than the remaining power amount, the storage battery control system 1 or 1A performs discharge control that uses up the remaining power amount over the entire target period. Reductions can be implemented. Further, if the reduced power amount is less than the remaining power amount, the storage battery control system 1 or 1A discharges only the reduced power amount from the remaining power amount, so that the remaining power amount of the storage battery 31 can be secured after the discharge control. The convenience after the discharge control is improved. Further, in the output priority mode that prioritizes higher output of discharge power, discharge control is performed so as to perform a discharge operation with as high output as possible based on the requested reduced power amount.
　実施形態に係る第４の態様の蓄電池制御システム１または１Ａは、第１乃至第３の態様のいずれかにおいて、需要家施設４００において対象期間に削減可能な商用電力の電力量である削減可能電力量のデータを取得する削減可能量取得部１４または１４Ａをさらに備えることが好ましい。指示部１３または１３Ａは、電力削減要請によって要請される削減電力量が削減可能電力量を上回る場合、削減電力量として削減可能電力量を用いる。 The storage battery control system 1 or 1A of the fourth aspect according to the embodiment is a reducible power that is the amount of commercial power that can be reduced in the target period in the customer facility 400 in any of the first to third aspects. It is preferable to further include a reducible amount acquiring unit 14 or 14A that acquires the amount of data. When the reduction power amount requested by the power reduction request exceeds the reducible power amount, the instructing unit 13 or 13A uses the reducible power amount as the reduced power amount.
　したがって、蓄電池制御システム１または１Ａは、需要家施設４００の電力使用形態に応じて、需要家施設４００における利便性を損なわないように、放電動作を指示できる。さらには、蓄電池３１の残電力量の変動幅が小さくなるので、蓄電池３１の長寿命化を図ることができる。 Therefore, the storage battery control system 1 or 1A can instruct the discharge operation so as not to impair the convenience in the customer facility 400 according to the power usage pattern of the customer facility 400. Furthermore, since the fluctuation range of the remaining power amount of the storage battery 31 is reduced, the life of the storage battery 31 can be extended.
　実施形態に係る第５の態様の蓄電池制御システム１または１Ａでは、第１乃至第４の態様のいずれかにおいて、対象期間中に放電モードの変更を要請するモード変更要請を要請取得部１１または１１Ａが取得した場合、指示部１３または１３Ａは以下のように動作することが好ましい。指示部１３または１３Ａは、変更後の放電モード、対象期間における削減電力量の未達成量、モード変更要請の取得時以降に蓄電装置３の蓄電池３１が放電可能な電力量に基づいて、モード変更要請の取得時以降における蓄電装置３の放電動作を指示する。 In the storage battery control system 1 or 1A of the fifth aspect according to the embodiment, in any one of the first to fourth aspects, the request acquisition unit 11 or 11A requests a mode change request for requesting a change of the discharge mode during the target period. Is acquired, it is preferable that the instruction unit 13 or 13A operates as follows. The instructing unit 13 or 13A changes the mode based on the changed discharge mode, the unachieved amount of reduced power during the target period, and the amount of power that can be discharged by the storage battery 31 of the power storage device 3 after the acquisition of the mode change request. The power storage device 3 is instructed to discharge after the request is acquired.
　したがって、時間優先モードから出力優先モードへの変更によって、停電回避の可能性が高くなる。また、出力優先モードから時間優先モードへの変更によって、要請された対象期間の全期間に亘って放電動作を継続させることができる。 Therefore, by changing from the time priority mode to the output priority mode, the possibility of power failure avoidance increases. Further, by changing from the output priority mode to the time priority mode, the discharge operation can be continued over the entire target period requested.
　また、実施形態に係る第６の態様の蓄電池制御方法は、需要家施設４００において、商用電源８および蓄電装置３から負荷９へ電力を供給する配電システム１０に組み合わされる蓄電池制御システム１に用いられる。この蓄電池制御方法は、要請取得ステップ（Ｓ１）と、指示ステップ（Ｓ３，Ｓ４，Ｓ５）とを備える。要請取得ステップは、商用電源８から負荷９へ供給される商用電力の削減を要請する対象期間、対象期間において要請される商用電力の削減電力量、対象期間において要請される蓄電装置３の放電動作である放電モードの各情報を含む電力削減要請を取得する。指示ステップは、蓄電装置３に放電動作を指示する。放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能である。そして、指示ステップは、放電モード、削減電力量に基づいて、対象期間における蓄電装置３の放電動作を指示する。 Moreover, the storage battery control method of the 6th aspect which concerns on embodiment is used for the storage battery control system 1 combined with the power distribution system 10 which supplies electric power from the commercial power supply 8 and the electrical storage apparatus 3 to the load 9 in the consumer facility 400. . This storage battery control method includes a request acquisition step (S1) and instruction steps (S3, S4, S5). The request acquisition step includes a target period for requesting reduction of commercial power supplied from the commercial power supply 8 to the load 9, a reduction amount of commercial power requested in the target period, and a discharge operation of the power storage device 3 requested in the target period. The power reduction request including each information of the discharge mode is acquired. The instruction step instructs the power storage device 3 to perform a discharging operation. The discharge mode can be set to either an output priority mode that prioritizes higher discharge power output or a time priority mode that prioritizes longer discharge time. And an instruction | indication step instruct | indicates the discharge operation of the electrical storage apparatus 3 in an object period based on discharge mode and reduction electric energy.
　したがって、蓄電池制御方法は、放電時間の長時間化を優先する時間優先モードによる電力削減要請があった場合に、長時間に亘って放電できるように蓄電装置３の放電動作を指示できる。すなわち、蓄電池制御方法は、電力削減要請があった場合に長時間に亘る電力削減を実施することができる。 Therefore, the storage battery control method can instruct the discharging operation of the power storage device 3 so that it can be discharged for a long time when there is a power reduction request in the time priority mode in which priority is given to a longer discharge time. That is, the storage battery control method can carry out power reduction for a long time when there is a power reduction request.
　また、蓄電池制御システム１または１Ａは、コンピュータを搭載しており、このコンピュータがプログラムを実行することによって、上述の蓄電池制御システム１または１Ａの各部の機能が実現されている。コンピュータは、プログラムを実行するプロセッサを備えたデバイスと、他の装置との間でデータを授受するためのインターフェイス用のデバイスと、データを記憶するための記憶用のデバイスとを主な構成要素として備える。プロセッサを備えたデバイスは、半導体メモリと別体であるＣＰＵ（Central Processing Unit）またはＭＰＵ（Micro Processing Unit）のほか、半導体メモリを一体に備えるマイコンのいずれであってもよい。記憶用のデバイスは、半導体メモリのようにアクセス時間が短い記憶装置と、ハードディスク装置のような大容量の記憶装置とが併用される。 Further, the storage battery control system 1 or 1A is equipped with a computer, and the functions of each part of the storage battery control system 1 or 1A described above are realized by the computer executing a program. A computer mainly includes a device having a processor for executing a program, an interface device for transmitting / receiving data to / from other apparatuses, and a storage device for storing data. Prepare. The device provided with the processor may be a CPU (Central Processing Unit) or MPU (Micro Processing Unit) which is a separate body from the semiconductor memory, or a microcomputer integrally including a semiconductor memory. As a storage device, a storage device having a short access time such as a semiconductor memory and a large-capacity storage device such as a hard disk device are used in combination.
　プログラムの提供形態としては、コンピュータに読み取り可能なＲＯＭ（Read Only Memory）、光ディスク等の記録媒体に予め格納されている形態、インターネット等を含む広域通信網を介して記録媒体に供給される形態等がある。 As a program providing form, a computer-readable ROM (Read Only Memory), a form stored in advance in a recording medium such as an optical disc, a form supplied to a recording medium via a wide area communication network including the Internet, etc. There is.
　実施形態に係る第７の態様のプログラムは、需要家施設４００において、商用電源８および蓄電装置３から負荷９へ電力を供給する配電システム１０に組み合わされる蓄電池制御システム１または１Ａに用いられる。このプログラムは、コンピュータを、要請取得部１１または１１Ａと、指示部１３または１３Ａとして機能させる。要請取得部１１または１１Ａは、商用電源８から負荷９へ供給される商用電力の削減を要請する対象期間、対象期間において要請される商用電力の削減電力量、対象期間において要請される蓄電装置３の放電動作である放電モードの各情報を含む電力削減要請を取得する。指示部１３または１３Ａは、蓄電装置３に放電動作を指示する。放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能である。そして、指示部１３または１３Ａは、放電モード、削減電力量に基づいて、対象期間における蓄電装置３の放電動作を指示する。 The program of the 7th mode concerning an embodiment is used for storage battery control system 1 or 1A combined with distribution system 10 which supplies electric power from commercial power supply 8 and power storage device 3 to load 9 in consumer facility 400. This program causes the computer to function as the request acquisition unit 11 or 11A and the instruction unit 13 or 13A. The request acquisition unit 11 or 11A includes a target period for requesting reduction of commercial power supplied from the commercial power supply 8 to the load 9, a reduction amount of commercial power requested in the target period, and the power storage device 3 requested in the target period. The power reduction request including each information of the discharge mode that is the discharge operation is acquired. Instructing unit 13 or 13A instructs power storage device 3 to perform a discharging operation. The discharge mode can be set to either an output priority mode that prioritizes higher discharge power output or a time priority mode that prioritizes longer discharge time. Then, instructing unit 13 or 13A instructs the discharging operation of power storage device 3 in the target period based on the discharging mode and the reduced power amount.
　したがって、コンピュータを蓄電池制御システム１または１Ａとして機能させるプログラムも、放電時間の長時間化を優先する時間優先モードによる電力削減要請があった場合に、長時間に亘って放電できるように蓄電装置３の放電動作を指示できる。すなわち、プログラムは、電力削減要請があった場合に長時間に亘る電力削減を実施することができる。 Therefore, the program for causing the computer to function as the storage battery control system 1 or 1A also enables the power storage device 3 so that it can be discharged for a long time when there is a power reduction request in the time priority mode that prioritizes longer discharge time. The discharge operation can be commanded. That is, the program can perform power reduction over a long time when a power reduction request is made.
　なお、上述の実施の形態は一例である。このため、実施の形態は、上述の構成に限定されることはなく、この構成以外であっても、技術的思想を逸脱しない範囲であれば、設計等に応じて種々の変更が可能であることは勿論である。 The above-described embodiment is an example. For this reason, the embodiment is not limited to the above-described configuration, and various modifications can be made according to the design or the like as long as the configuration does not depart from the technical idea even if other than this configuration. Of course.
　たとえば、配電システム１０は、太陽光発電装置、風力発電装置などの分散電源を備えて、分散電源の発電電力を、蓄電池３１の充電や負荷９の駆動電力に用いてもよい。 For example, the power distribution system 10 may include a distributed power source such as a solar power generation device or a wind power generation device, and use the power generated by the distributed power source for charging the storage battery 31 or driving power for the load 9.
　１，１Ａ　蓄電池制御システム
　１０　配電システム
　１１，１１Ａ　要請取得部
　１２，１２Ａ　残電力量取得部
　１３，１３Ａ　指示部
　１４，１４Ａ　削減可能量取得部
　２　分電盤
　３　蓄電装置
　３１　蓄電池
　３２　パワーコンディショナ
　６　電力センサ
　７　電力系統
　８　商用電源
　９　負荷
　１００　広域ネットワーク
　２００　上位サーバ
　３００　情報端末
　４００（４０１，４０２，４０３，．．．）　需要家施設 DESCRIPTION OF SYMBOLS 1,1A Storage battery control system 10 Distribution system 11, 11A Request acquisition part 12, 12A Remaining electric energy acquisition part 13, 13A Instruction part 14, 14A Reducible quantity acquisition part 2 Power distribution panel 3 Power storage device 31 Storage battery 32 Power conditioner 6 Power sensor 7 Power system 8 Commercial power supply 9 Load 100 Wide area network 200 Host server 300 Information terminal 400 (401, 402, 403, ...) Customer facility

Claims (7)

  1. 　商用電源および蓄電装置から負荷へ電力を供給する需要家施設の配電システムに組み合わされる蓄電池制御システムであって、
    　前記商用電源から前記負荷へ供給される商用電力の削減を要請する対象期間、前記対象期間において要請される前記商用電力の削減電力量、前記対象期間において要請される前記蓄電装置の放電動作である放電モードの各情報を含む電力削減要請を取得する要請取得部と、
    　前記蓄電装置に放電動作を指示する指示部とを備え、
    　前記放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能であり、
    　前記指示部は、前記放電モード、前記削減電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示する
    　ことを特徴とする蓄電池制御システム。     A storage battery control system combined with a distribution system of a customer facility that supplies power from a commercial power source and a power storage device to a load,
    A target period for requesting reduction of commercial power supplied from the commercial power source to the load, a reduction amount of the commercial power requested in the target period, and a discharging operation of the power storage device requested in the target period. A request acquisition unit for acquiring a power reduction request including each information of the discharge mode;
    An instruction unit for instructing a discharging operation to the power storage device,
    The discharge mode can be set to either an output priority mode that prioritizes higher output of discharge power or a time priority mode that prioritizes longer discharge time,
    The said instruction | indication part instruct | indicates the discharge operation of the said electrical storage apparatus in the said target period based on the said discharge mode and the said reduced electric energy. The storage battery control system characterized by the above-mentioned.
  2. 　前記対象期間において前記蓄電装置の蓄電池が放電可能な電力量である残電力量の情報を取得する残電力量取得部をさらに備え、
    　前記指示部は、前記放電モード、前記削減電力量、前記残電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示する
    　ことを特徴とする請求項１記載の蓄電池制御システム。     A remaining power amount acquisition unit that acquires information of a remaining power amount that is a power amount that can be discharged by the storage battery of the power storage device in the target period;
    The storage battery control system according to claim 1, wherein the instruction unit instructs a discharge operation of the power storage device in the target period based on the discharge mode, the reduced power amount, and the remaining power amount.
  3. 　前記指示部は、
    　前記放電モードが前記出力優先モードである場合、前記削減電力量を前記対象期間の時間長で除することで、前記対象期間における前記蓄電池の放電電力を決定し、
    　前記放電モードが前記時間優先モードである場合、前記削減電力量が前記残電力量以上であれば、前記残電力量を前記対象期間の時間長で除することで、前記対象期間における前記蓄電池の放電電力を決定し、前記削減電力量が前記残電力量未満であれば、前記削減電力量を前記対象期間の時間長で除することで、前記対象期間における前記蓄電池の放電電力を決定する
    　ことを特徴とする請求項２記載の蓄電池制御システム。     The instruction unit includes:
    When the discharge mode is the output priority mode, the discharge power of the storage battery in the target period is determined by dividing the reduced power amount by the time length of the target period,
    When the discharge mode is the time priority mode, if the reduced power amount is equal to or greater than the remaining power amount, the remaining power amount is divided by the time length of the target period, thereby Determining the discharge power, and if the reduced power amount is less than the remaining power amount, the discharge power of the storage battery in the target period is determined by dividing the reduced power amount by the time length of the target period. The storage battery control system according to claim 2.
  4. 　前記需要家施設において前記対象期間に削減可能な商用電力の電力量である削減可能電力量のデータを取得する削減可能量取得部をさらに備え、
    　前記指示部は、前記電力削減要請によって要請される前記削減電力量が前記削減可能電力量を上回る場合、前記削減電力量として前記削減可能電力量を用いる
    　ことを特徴とする請求項１乃至３のいずれか一項に記載の蓄電池制御システム。     Further comprising a reducible amount acquiring unit that acquires data of a reducible power amount that is a power amount of commercial power that can be reduced in the target period in the customer facility,
    The said instruction | indication part uses the said reducible power amount as said reduced power amount, when the said reduced power amount requested | required by the said power reduction request exceeds the said reducible power amount. The storage battery control system according to any one of claims.
  5. 　前記対象期間中に前記放電モードの変更を要請するモード変更要請を前記要請取得部が取得した場合、前記指示部は、変更後の放電モード、前記対象期間における前記削減電力量の未達成量、前記モード変更要請の取得時以降に前記蓄電装置の蓄電池が放電可能な電力量に基づいて、前記モード変更要請の取得時以降における前記蓄電装置の放電動作を指示することを特徴とする請求項１乃至４のいずれか一項に記載の蓄電池制御システム。 When the request acquisition unit acquires a mode change request for requesting the change of the discharge mode during the target period, the instruction unit is a discharge mode after the change, an unachieved amount of the reduced power amount in the target period, The discharge operation of the power storage device after the acquisition of the mode change request is instructed based on the amount of power that can be discharged by the storage battery of the power storage device after the acquisition of the mode change request. The storage battery control system as described in any one of thru | or 4.
  6. 　需要家施設において、商用電源および蓄電装置から負荷へ電力を供給する配電システムに組み合わされる蓄電池制御システムに用いられる蓄電池制御方法であって、
    　前記商用電源から前記負荷へ供給される商用電力の削減を要請する対象期間、前記対象期間において要請される前記商用電力の削減電力量、前記対象期間において要請される前記蓄電装置の放電動作である放電モードの各情報を含む電力削減要請を取得する要請取得ステップと、
    　前記蓄電装置に放電動作を指示する指示ステップとを備え、
    　前記放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能であり、
    　前記指示ステップは、前記放電モード、前記削減電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示する
    　ことを特徴とする蓄電池制御方法。     In a consumer facility, a storage battery control method used in a storage battery control system combined with a power distribution system that supplies power from a commercial power source and a power storage device to a load,
    A target period for requesting reduction of commercial power supplied from the commercial power source to the load, a reduction amount of the commercial power requested in the target period, and a discharging operation of the power storage device requested in the target period. A request acquisition step for acquiring a power reduction request including information on each discharge mode;
    An instruction step for instructing the power storage device to perform a discharging operation,
    The discharge mode can be set to either an output priority mode that prioritizes higher output of discharge power or a time priority mode that prioritizes longer discharge time,
    The said instruction | indication step instruct | indicates the discharge operation of the said electrical storage apparatus in the said target period based on the said discharge mode and the said reduced electric energy. The storage battery control method characterized by the above-mentioned.
  7. 　需要家施設において、商用電源および蓄電装置から負荷へ電力を供給する配電システムに組み合わされる蓄電池制御システムに用いられるプログラムであって、
    　コンピュータを、
    　前記商用電源から前記負荷へ供給される商用電力の削減を要請する対象期間、前記対象期間において要請される前記商用電力の削減電力量、前記対象期間において要請される前記蓄電装置の放電動作である放電モードの各情報を含む電力削減要請を取得する要請取得部と、
    　前記蓄電装置に放電動作を指示する指示部として機能させ、
    　前記放電モードは、放電電力の高出力化を優先する出力優先モード、放電時間の長時間化を優先する時間優先モードのいずれかに設定されることが可能であり、
    　前記指示部は、前記放電モード、前記削減電力量に基づいて、前記対象期間における前記蓄電装置の放電動作を指示する
    　ことを特徴とするプログラム。     In a customer facility, a program used in a storage battery control system combined with a power distribution system that supplies power from a commercial power source and a power storage device to a load,
    Computer
    A target period for requesting reduction of commercial power supplied from the commercial power source to the load, a reduction amount of the commercial power requested in the target period, and a discharging operation of the power storage device requested in the target period. A request acquisition unit for acquiring a power reduction request including each information of the discharge mode;
    Let the power storage device function as an instruction unit for instructing a discharge operation,
    The discharge mode can be set to either an output priority mode that prioritizes higher output of discharge power or a time priority mode that prioritizes longer discharge time,
    The said instruction | indication part instruct | indicates the discharge operation of the said electrical storage apparatus in the said target period based on the said discharge mode and the said reduced electric energy.
PCT/JP2016/003113 2015-07-13 2016-06-29 Storage battery control system, storage battery control method, and program WO2017010052A1 (en)

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