WO2017077716A1 - Dispositif de commande de charge/décharge, procédé de commande de charge/décharge, et programme - Google Patents

Dispositif de commande de charge/décharge, procédé de commande de charge/décharge, et programme Download PDF

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Publication number
WO2017077716A1
WO2017077716A1 PCT/JP2016/004808 JP2016004808W WO2017077716A1 WO 2017077716 A1 WO2017077716 A1 WO 2017077716A1 JP 2016004808 W JP2016004808 W JP 2016004808W WO 2017077716 A1 WO2017077716 A1 WO 2017077716A1
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WO
WIPO (PCT)
Prior art keywords
power
charge
amount
storage battery
price
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Application number
PCT/JP2016/004808
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English (en)
Japanese (ja)
Inventor
遥 仲宗根
馬場　朗
Original Assignee
パナソニックＩｐマネジメント株式会社
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Publication of WO2017077716A1 publication Critical patent/WO2017077716A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • 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
    • 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
    • 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
    • H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
    • H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/20—Systems characterised by their energy storage means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Definitions

  • the present invention relates to a charge / discharge control device, a charge / discharge control method, and a program for controlling charge / discharge of a storage battery.
  • the conventional charge / discharge control apparatus performs the same control according to the predetermined electricity rate plan every day.
  • the electricity rate plans will diversify and the electricity rate plans will change from day to day.
  • the unit price of surplus power in the current generated power is larger than the unit price of power purchase
  • the conventional charge / discharge control device performs control assuming that the unit price of power sale is larger than the unit price of power purchase.
  • the power selling unit price will be lower than the power purchasing unit price.
  • an object of the present invention is to provide a charge / discharge control device, a charge / discharge control method, and a program capable of suppressing an electricity charge corresponding to diversified electricity charge plans.
  • a charge / discharge control device is a charge / discharge control device that controls charge / discharge of a storage battery for charging generated power generated by a power generator and grid power from the grid, The amount of discharge of the storage battery according to the magnitude relationship between the unit power purchase price and the power sale unit price of the grid power in the period, and the predicted value of the power demand at the consumer and the predicted value of the power generation amount of the power generator And a calculation unit that calculates a charge amount, and a control unit that controls charge / discharge and charge / discharge timings of the storage battery according to the discharge amount and the charge amount calculated by the calculation unit in the predetermined period.
  • a charge / discharge control method is a charge / discharge control device that controls the operation of a charge / discharge control device that controls charge / discharge of a storage battery for charging generated power generated by a power generator and grid power from the grid.
  • the discharge control method the magnitude relationship between the unit power purchase price and the power sale unit price of the grid power in a predetermined period, the predicted value of the power demand in the consumer, and the predicted value of the power generation amount of the power generator
  • the amount of discharge and the amount of charge of the storage battery are calculated according to the control, and control is performed according to the amount of discharge and the amount of charge calculated for the charge / discharge and charge / discharge timing of the storage battery in the predetermined period.
  • the program which concerns on 1 aspect of this invention is a program which controls operation
  • the magnitude relationship between the power purchase unit price and the power sale unit price of the system power in a predetermined period, and the predicted value of the power demand in the consumer and the power generation of the power generation device According to the predicted value of the amount, the discharge amount and the charge amount of the storage battery are calculated, and the charge amount and the charge / discharge timing of the storage battery are calculated during the predetermined period according to the discharge amount and the charge amount. Let me control.
  • the charging / discharging control device According to the charging / discharging control device, the charging / discharging control method, and the program according to the present invention, it is possible to suppress the electricity bill corresponding to diversified electricity bill plans.
  • FIG. 1 is a configuration diagram illustrating an example of a charge / discharge control system according to an embodiment.
  • FIG. 2 is a table showing an example of power generation result data and power demand result data.
  • FIG. 3 is a flowchart illustrating an example of the operation of the charge / discharge control system according to the embodiment.
  • FIG. 4A is a diagram illustrating an example of a magnitude relationship between the power purchase unit price and the power sale unit price when the power purchase unit price does not vary with time.
  • (B) of FIG. 4 is a figure which shows an example of an operation
  • FIG. 5A is a diagram illustrating another example of the magnitude relationship between the power purchase unit price and the power sale unit price when the power purchase unit price does not vary with time.
  • B) of FIG. 5 is a figure which shows another example of operation
  • A) of FIG. 6 is a figure which shows an example of the magnitude relationship between the power purchase unit price and the power sale unit price in case a power purchase unit price changes according to time.
  • (B) of FIG. 6 is a figure which shows an example of operation
  • FIG. 7 is a figure which shows another example of the magnitude relationship between the power purchase unit price and the power sale unit price in case a power purchase unit price fluctuates according to time.
  • (B) of FIG. 7 is a figure which shows another example of operation
  • FIG. 8A is a diagram illustrating another example of the magnitude relationship between the power purchase unit price and the power sale unit price when the power purchase unit price varies with time.
  • (B) of FIG. 8 is a figure which shows another example of operation
  • FIG. 9 is a diagram illustrating an example of an operation in the case where the discharge amount of the storage battery of the charge / discharge control device according to the embodiment cannot cover all of the insufficient power amount.
  • (A) of FIG. 10 is a figure which shows an example of the operation
  • (B) of FIG. 10 is a figure which shows an example of the operation
  • (A) of FIG. 11 is a figure which shows another example of the operation
  • (B) of FIG. 11 is a figure which shows another example of the operation
  • FIG. 1 is a configuration diagram illustrating an example of a charge / discharge control system 1 according to an embodiment.
  • the grid power from the grid 200, the generated power from the power generator 13, and the power charged in the storage battery 14 are supplied to the load 70 in the customer 100.
  • a plurality of devices installed in the customer 100 are collectively referred to as a load 70.
  • the grid power and the generated power are charged in the storage battery 14.
  • the charge / discharge control system 1 includes a charge / discharge control device 10, a power generation device 13, a storage battery 14, an acquisition unit 20, a storage unit 30, a prediction unit 40, a power conditioner (power conditioner) 50, a distribution board 60, and a load 70.
  • the charge / discharge control device 10 includes a calculation unit 11 and a control unit 12.
  • the charge / discharge control device 10 charges the storage battery 14 with system power, supplies the system power to the load 70, charges the generated battery with the storage battery 14, supplies the generated power with the load 70, and the power charged in the storage battery 14.
  • the discharge to the load 70 is controlled.
  • the power generation device 13 is a device that generates power for supplying the load 70, power for selling power to the system 200, and power for charging the storage battery 14.
  • power generation device 13 is a solar power generation device, and can generate power in a time zone in which sunlight can be received.
  • the generated power generated by the power generation device 13 is supplied to the load 70 through the power conditioner 50 described later, charged in the storage battery 14, or sold to the system 200.
  • surplus power in which the generated power generated by the power generation device 13 exceeds the power consumption (electric power demand) of the load 70 in the customer 100 is charged in the storage battery 14 or sold to the system 200.
  • the power generation device 13 is not limited to a solar power generation device, and may be any device that can generate power, such as a wind power generation device, a hydroelectric power generation device, or a fuel cell.
  • the storage battery 14 charges the generated power generated by the power generation device 13 and the system power from the system 200.
  • the storage battery 14 is charged with surplus power in which the generated power exceeds the power consumption of the load 70 among the generated power.
  • the calculation unit 11 determines the magnitude relationship between the power purchase unit price and the power sale unit price of the grid power in a predetermined period, the predicted value of power demand that is the power consumption amount of the load 70 in the customer 100, and the power generation device 13.
  • the discharge amount and the charge amount of the storage battery 14 are calculated according to the predicted value of the power generation amount.
  • the predicted value of power demand and the predicted value of power generation are values calculated by the prediction unit 40 described later.
  • the predetermined period is, for example, 24 hours from a predetermined time.
  • the control unit 12 controls the charging / discharging and charging / discharging timing of the storage battery 14 according to the discharge amount and the charge amount calculated by the calculation unit 11 in a predetermined period. That is, the calculation unit 11 calculates in advance the discharge amount and the charge amount of the storage battery 14 in a predetermined period, and the control unit 12 determines the charge / discharge amount of the storage battery 14 in the predetermined period. The storage battery 14 is controlled so that the amount and the charge amount are reached.
  • the control unit 12 may control the charge / discharge amount of the storage battery 14 by the absolute value of the discharge amount and the charge amount calculated by the calculation unit 11, or may be controlled by SOC (State Of Charge). .
  • SOC State Of Charge
  • the calculation unit 11 and the control unit 12 are, for example, a processor that executes a control program stored in a storage unit (not shown) included in the charge / discharge control device 10 and is realized by a microcomputer or a dedicated circuit. May be. Further, in FIG. 1, it is schematically indicated by the arrow from the control unit 12 to the storage battery 14 that the control unit 12 controls charging / discharging of the storage battery 14. The charging / discharging of the storage battery 14 is controlled via Moreover, in FIG. 1, although the charging / discharging control apparatus 10 is provided in the consumer 100, an external apparatus may be sufficient, for example, you may control charging / discharging of the storage battery 14 via a network.
  • the acquisition unit 20 includes a communication unit (not shown), acquires the actual power generation amount data of the power generation device 13 from the power generation device 13, and acquires the actual power consumption amount (power demand) data of the load 70 from the load 70. Then, weather forecast data and price data are acquired from, for example, an external server.
  • the weather forecast data includes past performance data and future weather prediction data.
  • the actual power generation data, the power demand actual data, and the weather forecast data will be described in detail with reference to FIG.
  • the price data is data relating to the unit power purchase price of grid power and the power sale unit price of surplus power in a predetermined period.
  • the predetermined period is, for example, 24 hours from a predetermined time
  • the acquisition unit 20 acquires data on the power purchase unit price and the power sale unit price for 24 hours from the predetermined time, for example, every 24 hours.
  • the price data will be described in detail in FIGS. 4A to 8A, which will be described later, with examples of the power purchase unit price and the power sale unit price.
  • the acquisition unit 20 stores the acquired power generation result data, power demand result data, weather forecast data, and price data in the storage unit 30.
  • the storage unit 30 is a storage device that stores the actual power generation result data, the power demand result data, the weather forecast data, and the price data acquired by the acquisition unit 20.
  • the storage unit 30 is realized by, for example, a semiconductor memory.
  • the prediction unit 40 calculates the predicted value of the power generation amount from the predicted value of power demand, the actual power generation amount data, and the weather forecast data from the actual power demand data stored in the storage unit 30.
  • the predicted value of power demand and the predicted value of power generation will be described in detail with reference to FIG.
  • the prediction unit 40 notifies the calculation unit 11 of the calculated predicted power demand value and the predicted power generation amount. Further, the prediction unit 40 notifies the calculation unit 11 of the price data stored in the storage unit 30. Note that the calculation unit 11 may directly acquire the price data stored in the storage unit 30 from the storage unit 30.
  • the power conditioner 50 is a device that converts electric power into desired power among the system 200, the power generation device 13, the storage battery 14, and the load 70. Specifically, the power conditioner 50 converts DC power supplied from the power generation device 13 and the storage battery 14 into AC power. The power conditioner 50 converts the power supplied to the storage battery 14 from AC power to DC power.
  • the distribution board 60 performs control to supply power supplied from the system 200, the power generation device 13 and the storage battery 14 to the load 70 (a plurality of devices).
  • the distribution board 60 includes a breaker, a relay, and the like.
  • the load 70 indicates a plurality of devices provided in the customer 100, and is, for example, an electrical device such as an air conditioner, a refrigerator, a television, or a lighting device provided in the customer 100.
  • an electrical device such as an air conditioner, a refrigerator, a television, or a lighting device provided in the customer 100.
  • FIG. 2 is a table showing an example of the actual power generation result data and the actual power demand data.
  • the power demand shown in FIG. 2 is a predetermined value acquired by the acquisition unit 20 for the prediction unit 40 to calculate a predicted value of power demand for a predetermined period (for example, 24 hours) after a predetermined time (for example, 0:00). This is actual data of power demand for 24 hours before the time.
  • the power demand 350 Wh at time 0:00 shown in FIG. 2 means that the actual power demand from 0:00 to 1:00 in the past was 350 Wh.
  • the prediction unit 40 calculates a predicted value of power demand from the actual power demand data acquired by the acquisition unit 20.
  • the power generation amount shown in FIG. 2 is calculated by the acquisition unit 20 for the prediction unit 40 to calculate a predicted value of the power generation amount of the power generation device 13 for a predetermined period (for example, 24 hours) after a predetermined time (for example, 0:00). It is the actual data of the generated power of the power generator 13 for 24 hours before the acquired predetermined time.
  • the power generation amount 200 Wh at time 6:00 shown in FIG. 2 means that the actual power generation amount from 6:00 to 7:00 in the past was 200 Wh.
  • the weather shown in FIG. 2 is past data of past weather for 24 hours before a predetermined time in the weather forecast data acquired by the acquisition unit 20. That is, for example, the clear weather at the time of 6 o'clock shown in FIG. 2 means that the past weather record from 6 o'clock to 7 o'clock was clear.
  • the prediction unit 40 calculates a predicted value of the power generation amount from the actual power generation data and weather forecast data acquired by the acquisition unit 20.
  • the power generation device (solar power generation device) 13 included in the customer 100 has in advance power generation amount actual data corresponding to the latitude, longitude, solar cell capacity, installation orientation, installation angle, and the like of the customer 100. It may be.
  • the prediction unit 40 calculates the predicted value of power demand and the predicted value of power generation for 24 hours as a predetermined period from 0:00 as a predetermined time, but not limited thereto, for example, power from 24 hours to 24 hours A predicted value of demand and a predicted value of power generation amount may be calculated. Further, the prediction unit 40 may calculate, for example, a predicted value of power demand and a predicted value of power generation for 12 hours from 0:00. That is, the time for calculating the predicted value of power demand and the predicted value of power generation and the period from that time are not limited. However, there is a preferred time for calculating the predicted value of power demand and the predicted value of power generation amount, which will be described later.
  • the storage unit 30 stores the actual power generation data and the actual power demand data, and based on this, the prediction unit 40 calculates the predicted power demand value and the predicted power generation value.
  • FIG. 3 is a flowchart showing an example of the operation of the charge / discharge control system 1 according to the embodiment.
  • the acquisition unit 20 acquires actual power generation data, power demand actual data, weather forecast data, and price data (step S11).
  • step S12 the prediction unit 40 calculates a predicted value of power demand and a predicted value of power generation.
  • step S11 and step S12 The description of the operation in step S11 and step S12 has been described with reference to FIG.
  • the calculation unit 11 determines the amount of discharge of the storage battery 14 according to the magnitude relationship between the power purchase unit price and the power sale unit price in a predetermined period, and the predicted value of power demand and the predicted value of power generation.
  • a charge amount is calculated (step S13).
  • control part 12 controls the charging / discharging and charging / discharging timing of the storage battery 14 according to the discharge amount and charge amount which the calculation part 11 calculated in the predetermined period (step S14).
  • step S13 and step S14 will be described in detail with reference to FIGS.
  • Step S13 and Step S14 operation of the charge / discharge control device 10.
  • FIG. 4 is a diagram illustrating an example of a magnitude relationship between the power purchase unit price and the power sale unit price when the power purchase unit price does not vary with time.
  • the solid line shown in (a) of FIG. 4 shows the power purchase unit price
  • the dotted line shows the power sale unit price.
  • the power purchase unit price is 20 yen / kWh
  • the power sale unit price is 35 yen / kWh.
  • the price data is data relating to the unit power purchase price of the grid power and the power sale unit price of surplus power in a predetermined period.
  • FIGS. 5A to 8A an example of price data is also shown in FIGS. 5A to 8A described later.
  • FIG. 4 is a figure which shows an example of operation
  • (b) in FIG. 4 shows the charging when the power purchase unit price does not vary with time over a predetermined period (for example, 24 hours) and the power purchase unit price is smaller than the power sale unit price.
  • 4 is a diagram illustrating an example of the operation of the discharge control device 10.
  • FIG. The solid line shown in FIG. 4B indicates the predicted value of power demand, and the dotted line indicates the predicted value of power generation.
  • An area 110 indicates the amount of power purchased from the system 200.
  • a region 120 indicates the amount of power supplied to the power demand out of the amount of power generated by the power generation device 13.
  • a region 130 is a surplus power amount when the generated power of the power generation device 13 exceeds the power consumption of the load 70, and indicates the amount of power sold to the system 200.
  • the calculation unit 11 purchases the grid power for every unit time (for example, one hour), the power amount supplied to the power demand out of the power generation amount, and The amount of surplus power sold is calculated.
  • the unit price of power sale is always larger than the unit price of power purchase over a predetermined period, it is better to sell power than to charge the storage battery 14 with surplus power when the generated power generated by the power generation device 13 exceeds the power demand. Electricity charges are reduced. Specifically, even if the surplus power is charged in the storage battery 14, the purchase amount of the power purchase price of 20 yen / kWh, which is lower than the unit price of 35 yen / kWh, only decreases the surplus power. Electricity costs are reduced by selling electricity at a unit price of 35 yen / kWh.
  • the electricity rate is the difference between the power purchase fee for grid power and the power sale fee for surplus power.
  • FIG. 5 is a diagram illustrating another example of the magnitude relationship between the power purchase unit price and the power sale unit price when the power purchase unit price does not vary with time.
  • the solid line shown in (a) of FIG. 5 shows the unit price of power purchase, and the dotted line shows the unit price of power sale. It is shown that the power purchase unit price is 20 yen / kWh and the power sale unit price is 10 yen / kWh.
  • FIG. 5 is a figure which shows another example of operation
  • (b) in FIG. 5 is a charge when the power purchase unit price does not vary with time over a predetermined period (for example, 24 hours) and the power purchase unit price is greater than the power sale unit price.
  • 4 is a diagram illustrating an example of the operation of the discharge control device 10.
  • FIG. 5B indicates power demand, and the dotted line indicates the amount of power generation. Since the area 110 and the area 120 are the same as those in FIG.
  • a region 140 is a surplus power amount when the generated power of the power generation device 13 exceeds the power demand, and indicates a charge amount to the storage battery 14.
  • a region 150 indicates a discharge amount of power charged in the storage battery 14.
  • the calculation unit 11 determines the amount of power supplied to the power demand out of the amount of power purchased, the amount of power generated, and the storage battery for each unit time (for example, one hour) according to the predicted value of power demand and the predicted value of power generation. The amount of surplus power charged to 14 and the amount of discharge of the storage battery 14 are calculated.
  • the calculation unit 11 determines whether or not the storage battery 14 is charged with surplus power based on the magnitude relationship between the power purchase unit price and the power sale unit price. Specifically, when the power purchase unit price is smaller than the power sale unit price over a predetermined period, the calculation unit 11 determines that the surplus power is sold without charging the storage battery 14, and over the predetermined period. When the power purchase unit price is larger than the power sale unit price, it is determined that the surplus power is charged in the storage battery 14. When it is determined that the storage battery 14 is charged with surplus power, the calculation unit 11 determines the storage battery 14 based on the surplus power according to the predicted power demand value and the predicted power generation amount as illustrated in FIG. Calculate the amount of charge.
  • control part 12 controls the charge of the surplus electric power of the storage battery 14, and the timing of charge according to the charge amount which the calculation part 11 calculated in the predetermined period. Specifically, the control unit 12 charges the amount of charge calculated by the calculation unit 11 from the surplus power at the timing when the surplus power shown in FIG. 5B is generated.
  • FIG. 6 is a diagram illustrating an example of a magnitude relationship between the power purchase unit price and the power sale unit price when the power purchase unit price varies according to time.
  • the solid line shown in (a) of FIG. 6 indicates the power purchase unit price, and the dotted line indicates the power sale unit price.
  • the power purchase unit price is 28 yen / kWh from 9:00 to 21:00, 15 yen / kWh from 21:00 to 9:00, and the power sale unit price is 35 yen / kWh. That is, in a predetermined period (from 0:00 to 24:00), a low price time zone (from 21:00 to 9:00) and a high price time zone (from 9:00 to 21:00) where the power purchase unit price is larger than the low price time zone. Is shown to be included.
  • FIG. 6B shows a case where the power purchase unit price fluctuates according to time in a predetermined period (for example, 24 hours), and the power purchase unit price is smaller than the power sale unit price over the predetermined period.
  • FIG. 6B shows a case where the power purchase unit price fluctuates according to time in a predetermined period (for example, 24 hours), and the power purchase unit price is smaller than the power sale unit price over the predetermined period.
  • movement of the charging / discharging control apparatus The solid line shown in (b) of FIG. 6 shows power demand, and the dotted line shows the amount of power generation.
  • the region 110, the region 120, and the region 130 are the same as those in FIG.
  • a region 160 indicates a charge amount of the system power to the storage battery 14 in the low price time zone.
  • a region 170 indicates a shortage amount of electric power that cannot be covered by the generated power when the power demand in the high price period exceeds the generated power. In other words, the area 170 indicates the discharge amount of the storage battery 14 in the high price time zone.
  • the calculation unit 11 determines the amount of power supplied to the power demand out of the amount of power purchased, the amount of power generated, and the surplus for each unit time (for example, 1 hour) according to the predicted value of power demand and the predicted value of power generation. The amount of electric power sold, the amount of grid power charged to the storage battery 14 in the low price period, and the amount of discharge of the storage battery 14 in the high price period are calculated.
  • the electricity charge is suppressed by charging the storage battery 14 in the low price period.
  • the electricity bill is suppressed.
  • FIG. 7 is a figure which shows another example of the magnitude relationship between the power purchase unit price and the power sale unit price in case a power purchase unit price changes according to time.
  • the solid line shown in (a) of FIG. 7 shows the power purchase unit price, and the dotted line shows the power sale unit price.
  • the power purchase unit price is 28 yen / kWh from 9:00 to 21:00, 15 yen / kWh from 21:00 to 9:00, and the power sale unit price is 10 yen / kWh.
  • FIG. 7 is a figure which shows another example of operation
  • (b) of FIG. 7 shows a case where the power purchase unit price fluctuates according to time in a predetermined period (for example, 24 hours), and the power purchase unit price is larger than the power sale unit price over a predetermined period.
  • movement of the charging / discharging control apparatus The solid line shown in FIG. 7B indicates the power demand, and the dotted line indicates the amount of power generation.
  • the region 110, the region 120, and the region 140 are the same as those in FIG. 5B, and the region 160 is the same as that in FIG.
  • Regions 170a and 170b indicate the amount of power shortage, which is power that cannot be covered by the generated power when the power demand in the high price period exceeds the generated power.
  • the area 170a indicates the amount of discharge of the storage battery 14 charged by the system power.
  • the area 170b shows the discharge amount of the storage battery 14 charged with the grid power and surplus power.
  • the calculation unit 11 determines the amount of power supplied to the power demand out of the amount of power purchased, the amount of power generated, and the storage battery for each unit time (for example, one hour) according to the predicted value of power demand and the predicted value of power generation. 14, the amount of surplus power charged to 14, the amount of grid power charged to the storage battery 14 in the low-price time zone, and the amount of discharge of the storage battery 14 are calculated.
  • the storage battery 14 Since the unit price of power sale is always smaller than the unit price of power purchase over a predetermined period, the storage battery 14 is charged rather than surplus power when the generated power generated by the power generation device 13 exceeds the power demand. However, the electricity bill is reduced. Specifically, even if surplus power is sold, power can be sold only at a power unit price of 10 yen / kWh, which is smaller than the unit price of 28 yen / kWh in the high price period. By charging 14 and reducing the purchase amount of grid power with a power purchase unit price of 28 yen / kWh, the electricity bill is suppressed.
  • the grid power is stored in the low price time zone. By charging to 14, the electricity bill is suppressed.
  • the power generation amount of the power generation device 13 it is not necessary to charge the storage battery 14 with the grid power in the low price period.
  • the system power is charged to the storage battery 14 in the low price period even when the shortage of electric power can be covered by the amount of charge of the storage battery 14 based on surplus power. There is no need.
  • FIG. 8 is a figure which shows another example of the magnitude relationship between the power purchase unit price and the power sale unit price in case a power purchase unit price changes according to time.
  • the solid line shown in (a) of FIG. 8 indicates the power purchase unit price, and the dotted line indicates the power sale unit price.
  • the power purchase unit price is 28 yen / kWh between 9 am and 9 pm, 15 yen / kWh between 9 pm and 9 pm, and the power sale unit price is 20 yen / kWh. That is, the power selling unit price is larger than the power buying unit price in the low price period and smaller than the power buying unit price in the high price period.
  • FIG. 8 is a figure which shows another example of operation
  • (b) in FIG. 8 shows that the power purchase unit price fluctuates according to time in a predetermined period (for example, 24 hours), and the power sale unit price is higher than the power purchase unit price in the low price period.
  • the solid line shown in (b) of FIG. 8 shows power demand, and the dotted line shows the amount of power generation.
  • Each region shown in FIG. 8B is the same as that in FIG. 6B, and the description thereof is omitted.
  • the system charge is charged to the storage battery 14 in the low price period, thereby suppressing the electricity bill. Specifically, rather than purchasing the power shortage in the high price period from the system 200 at a power purchase price of 28 yen / kWh in the high price period, purchase at a power purchase price of 15 yen / kWh in the low price period. By charging the storage battery 14, the electricity bill is suppressed. Further, since the unit price of power sale is larger than the unit price of power purchase in the low price period, the electricity price is suppressed when surplus power is sold rather than being charged to the storage battery 14.
  • the purchase amount of system power (charge amount) at a power purchase price of 15 yen / kWh in a low price period where the unit price is less than 20 yen / kWh. ) Only decreases, and the electricity bill is suppressed by selling surplus power at a unit price of 20 yen / kWh.
  • the predetermined period includes a low-price time zone and a high-price time zone in which the power purchase unit price is larger than the low-price time zone.
  • the calculation unit 11 supplies the grid power to the storage battery 14 based on whether or not a shortage amount of power that cannot be covered by the generated power is generated when the power demand at least during the high price period exceeds the generated power. Determine whether to charge.
  • the calculation unit 11 determines to charge the storage battery 14 with the grid power when a shortage of electric power in the high price period occurs.
  • the calculation unit 11 when the power purchase unit price is larger than the power sale unit price over a predetermined period, the calculation unit 11 generates an insufficient amount of power in the high price period, and the amount of charge of the storage battery 14 based on the surplus power When it is not possible to cover all of the shortage of electric power during the high price period, it is determined that the grid power is charged in the storage battery 14. And the calculation part 11 calculates the charge amount of the storage battery 14 based on the discharge amount of the storage battery 14, the charge amount of the storage battery 14 based on system power, and the surplus power according to the predicted value of power demand and the predicted value of power generation amount. calculate.
  • the calculation unit 11 calculates the charge amount of the grid power to the storage battery 14 in the low price period, and the control unit 12 determines the charging and charging timing of the storage battery 14 in the low price period. Control is performed according to the calculated charge amount. Specifically, the control unit 12 determines the charge amount calculated by the calculation unit 11 at the timing of the low price period (from 21:00 to 9:00) shown in (b) of FIG. 6 to (b) of FIG. Charge from power. Moreover, the calculation part 11 calculates the discharge amount of the storage battery 14 in which an electricity bill becomes the lowest price, and the control part 12 controls the discharge and discharge timing of the storage battery 14 according to the discharge amount which the calculation part 11 calculated. .
  • the discharge amount of the storage battery 14 at which the electricity rate is the lowest is, for example, the discharge amount of the storage battery 14 in the high price time zone.
  • the control unit 12 discharges the discharge amount calculated by the calculation unit 11 at the high price time zone (from 9 o'clock to 9 o'clock) shown in FIG. 6 (b) to FIG. 8 (b).
  • the system power or the discharge amount of the storage battery 14 charged with the remaining power without being discharged the previous day can cover all of the insufficient power amount.
  • the capacity of the storage battery 14 or the maximum charge rate of the storage battery 14 it may not be possible to cover all of the insufficient power.
  • the power purchase unit price fluctuates according to time in a predetermined period and the power purchase unit price is smaller than the power sale unit price over a predetermined period (in the case of (a) in FIG. 6)
  • the storage battery 14 is discharged.
  • the amount of power cannot cover all of the shortage of power, the amount of power that cannot be covered by the discharge amount of the storage battery 14 is purchased in the high price period.
  • FIG. 9 is a diagram illustrating an example of an operation in the case where the discharge amount of the storage battery 14 of the charge / discharge control device 10 according to the embodiment cannot cover all of the insufficient power amount.
  • FIG. 9 shows that the power purchase unit price fluctuates depending on the time in a predetermined period (for example, 24 hours), and the power sale unit price is larger than the power purchase unit price in the low price period, and the purchase in the high price period.
  • FIG. The solid line shown in FIG. 9 indicates power demand, and the dotted line indicates the amount of power generation.
  • Each region shown in FIG. 9 is the same as that in FIG. 7B and FIG.
  • the discharge amount of the storage battery 14 is In the case of an amount of electric power that cannot cover all of the shortage of electric power, the amount of electric power that cannot be covered by the discharge amount of the storage battery 14 is purchased in the high price period, and all surplus power is sold. More specifically, in the high price period, the grid power is purchased until the time when the power demand exceeds the power generation amount, and surplus power is sold while the power demand exceeds the power generation amount. Grid power is purchased after the time when power is below the power demand.
  • the amount of discharge of the storage battery 14 is an amount of power that cannot cover all of the insufficient power amount.
  • the storage battery 14 is charged. Specifically, since the unit price of power purchase is smaller than the unit price of power purchase in the high price period, as shown in FIG. 9, the storage battery from the surplus power supplies the amount of power that cannot be covered by the discharge amount of the storage battery 14. Covered with charge to 14.
  • surplus power with a power selling unit price of 20 yen / kWh is sold rather than surplus power with a power selling unit price of 20 yen / kWh is sold and the system power with a unit price of 28 yen / kWh is purchased in the high price period. Electricity charges are reduced when the battery is charged. Then, when the amount of power shortage can be covered by the amount of discharge of the storage battery 14 in which a part of the grid power and surplus power is charged, the remaining surplus power is sold.
  • the calculation unit 11 determines that the power sale unit price is larger than the power purchase unit price in the low price time period and smaller than the power purchase unit price in the high price period, and the system power is charged to the storage battery 14.
  • the amount of discharge of the storage battery 14 is sufficient to cover all of the insufficient power amount, it is determined that surplus power is sold without charging the storage battery 14, and the amount of discharge of the storage battery 14 can cover all of the insufficient amount of power.
  • the amount of power is not, it is determined that the surplus power is charged in the storage battery 14.
  • the calculation unit 11 calculates the discharge amount and the charge amount of the storage battery 14 before a predetermined time before the start time of the low price time zone, and the control unit 12 performs a predetermined period from the start time of the low price time zone. It is preferable to control the charging / discharging and charging / discharging timing of the storage battery 14 according to the discharge amount and the charge amount calculated by the calculation unit 11. That is, the calculation unit 11 responds to the predicted value of power demand and the predicted value of power generation shown in (b) of FIG. 6 to (b) of FIG. 8 before a predetermined time before the start time of the low price period. Then, the discharge amount and the charge amount of the storage battery 14 are calculated.
  • the acquisition unit 20 acquires the actual power generation amount data, the actual power demand data, the weather forecast data, and the price data, and the prediction unit 40 includes calculating a predicted value of power demand and a predicted value of power generation.
  • the start time of the low-priced time zone is 21:00 and the predetermined period is 24 hours.
  • the calculation unit 11 calculates the discharge amount and the charge amount of the storage battery 14 before a predetermined time at 21:00, and the control unit 12 calculates the discharge amount calculated by the calculation unit 11 in 24 hours from 21:00.
  • the timing of charging / discharging and charging / discharging is controlled according to charge amount.
  • the predetermined time is a time required for calculating the discharge amount and the charge amount of the storage battery 14, and is, for example, 30 minutes.
  • control part 12 can charge the storage battery 14 of the system power over a long time from the start time of the low price period. Therefore, much of the shortage of electric power generated in the high price time zone can be covered by the charge amount by the system power in the low price time zone.
  • the predetermined period includes the low price period and the high price period, but the present invention is not limited to this.
  • the high price time zone may include at least a first high price time zone and a second high price time zone in which the power purchase unit price is larger than the first high price time zone.
  • the predetermined period may include at least three price ranges of a low price time zone, a first high price time zone, and a second high price time zone.
  • the operation of the control unit 12 when the predetermined period includes three price ranges of the low price time zone, the first high price time zone, and the second high price time zone will be described with reference to FIGS. 10 and 11. explain.
  • FIG. 10 is a figure which shows an example of the operation
  • (B) of Drawing 10 is a figure showing an example of operation which starts discharge of storage battery 14 in the 2nd high price time zone of control part 12 concerning an embodiment.
  • FIG. 11 is a figure which shows another example of the operation
  • (B) of Drawing 11 is a figure showing other examples of operation which starts discharge of storage battery 14 in the 2nd high price time zone of control part 12 concerning an embodiment.
  • Each region shown in FIG. 10 and FIG. 11 is the same as that in FIG.
  • the low price time zone (8 yen) is set from 23:00 to 7 o'clock
  • the first high price time zone (22 yen) is set from 7 o'clock to 10 o'clock and from 17 o'clock to 23 o'clock.
  • the second high price time zone (28 yen) is from 10:00 to 17:00.
  • the unit price of power sale is larger than the unit price of power purchase over a predetermined period, and all surplus power is sold.
  • the amount of power sufficient to cover all of the insufficient power amount in the high price period is charged in the low price period, but in FIG. 11, only the amount of insufficient power in the high price period can be covered.
  • the high price time zone includes the first high price time zone and the second high price time zone, and becomes the second high price time zone after the first high price time zone (for example, as shown in FIGS. 10 and 11).
  • the battery 14 starts discharging in the first high-priced time zone.
  • it is better to start discharging the storage battery 14 in the second high price period are cases where it is better to start discharging the storage battery 14 in the second high price period.
  • the prediction unit 40 calculates the predicted value of the power demand and the predicted value of the power generation amount as shown in (a) of FIG. 10 and (b) of FIG. It is better to start the discharge.
  • the power generation amount always exceeds the power demand in the second high price period, It is not necessary to discharge the storage battery 14 in the second high price period. That is, as shown in FIG. 10B, when the discharge of the storage battery 14 is started at the start time (10 o'clock) of the second high price time zone, the storage battery 14 needs to be discharged in the second high price time zone. In other words, useless power purchase occurs from 7:00 to 9:00 in the first high price period. Therefore, in this case, as shown in FIG. 10A, it is better to start discharging the storage battery 14 at the start time (7:00) of the first high price period.
  • the prediction unit 40 calculates a predicted value of power demand and a predicted value of power generation amount as shown in FIG. 11A and FIG. 11B, the storage battery is stored in the second high price period. It is better to start 14 discharges.
  • the power demand exceeds the power generation amount in the second high price period. Therefore, it is necessary to discharge the storage battery 14 in the second high price time zone.
  • FIG. 11A when the discharge of the storage battery 14 is started at the start time of the first high price period, the discharge amount of the storage battery 14 in the second high price period is reduced. As a result, the amount of electricity purchased in the second high price period increases. Therefore, as shown in FIG. 11B, it is better to start discharging the storage battery 14 at the start time of the second high price period.
  • the capacity of the storage battery 14 is a capacity that can cover all the shortage of electric power in the first high price period from 7:00 to 10:00 and the second high price period from 10:00 to 17:00. It is better to start discharging the storage battery 14 at the start time of the first high price period.
  • the high price time zone includes at least the first high price time zone and the second high price time zone in which the power purchase unit price is larger than the first high price time zone.
  • the start time of discharge of the storage battery 14 is determined according to the amount of insufficient power in the high price period, the amount of insufficient power in the second high price period, and the capacity of the storage battery 14.
  • the charge / discharge control apparatus 10 is a charge / discharge control apparatus that controls the charge / discharge of the storage battery 14 for charging the generated power generated by the power generation apparatus 13 and the system power from the system 200. .
  • the charge / discharge control device 10 determines the magnitude relationship between the power purchase unit price and the power sale unit price of the grid power in a predetermined period, and the predicted value of the power demand in the customer 100 and the predicted value of the power generation amount of the power generator 13. Accordingly, the calculation unit 11 that calculates the discharge amount and the charge amount of the storage battery 14 is provided.
  • the charging / discharging control apparatus 10 is provided with the control part 12 which controls the charging / discharging and charging / discharging timing of the storage battery 14 according to the discharge amount and the charge amount which the calculation part 11 calculated in the predetermined period.
  • the charge / discharge control method includes a charge / discharge control device 10 that controls charge / discharge of the storage battery 14 for charging the generated power generated by the power generation device 13 and the system power from the system 200.
  • This is a charge / discharge control method for controlling the operation.
  • this charge / discharge control method the magnitude relationship between the power purchase unit price and the power sale unit price of the grid power in a predetermined period, and the predicted value of the power demand in the customer 100 and the predicted value of the power generation amount of the power generator 13 are shown. Accordingly, the discharge amount and the charge amount of the storage battery 14 are calculated, and the charge / discharge and charge / discharge timing of the storage battery 14 are controlled according to the calculated discharge amount and charge amount in a predetermined period.
  • the program according to the present embodiment controls the operation of the charge / discharge control device 10 that controls the charge / discharge of the storage battery 14 for charging the generated power generated by the power generation device 13 and the system power from the system 200. It is a program to do.
  • This program is stored in the computer included in the charge / discharge control device 10 in accordance with the magnitude relationship between the unit power purchase price and the power sale unit price for a predetermined period, as well as the predicted value of power demand in the customer 100 and the power generation device. According to the predicted value of the power generation amount 13, the discharge amount and the charge amount of the storage battery 14 are calculated, and the charge / discharge and charge / discharge timings of the storage battery 14 are calculated in a predetermined period according to the discharge amount and the charge amount. Let me control.
  • the magnitude relationship between the power purchase unit price and the power sale unit price, as well as the predicted value of power demand and the prediction of power generation amount can be controlled without burden on the customer 100 so as to suppress the electricity bill. Therefore, it is possible to suppress the electricity bill corresponding to the diversified electricity bill plan.
  • the calculation unit 11 determines whether or not the storage battery 14 is charged with surplus power when the generated power exceeds the power demand based on the magnitude relationship between the power purchase unit price and the power sale unit price. When determining that the storage battery 14 is charged with surplus power, the calculation unit 11 calculates the charge amount of the storage battery 14 based on the surplus power according to the predicted value of power demand and the predicted value of power generation.
  • the calculation unit 11 determines that the surplus power when the generated power exceeds the power demand is sold without charging the storage battery 14 when the power purchase unit price is smaller than the power sale unit price over a predetermined period. . When the power purchase unit price is greater than the power sale unit price over a predetermined period, the calculation unit 11 determines to charge the storage battery 14 with surplus power.
  • the predetermined period includes a low-priced time zone and a high-priced time zone where the power purchase unit price is larger than the low-priced time zone.
  • the calculation unit 11 supplies the grid power to the storage battery 14 based on whether or not a shortage amount of power that cannot be covered by the generated power is generated when the power demand at least during the high price period exceeds the generated power. Determine whether to charge.
  • the calculation unit 11 calculates the discharge amount and the charge amount of the storage battery 14 based on the grid power according to the predicted value of power demand and the predicted value of power generation.
  • the insufficient power amount can be covered by the system power.
  • the calculation part 11 calculates the charge amount to the storage battery 14 of the system power in a low price time zone
  • the control part 12 calculated the charge and charge timing of the storage battery 14 in the low price time zone. Control according to the amount of charge.
  • the calculation unit 11 calculates the discharge amount of the storage battery 14 at which the electricity rate is the lowest value, and the control unit 12 controls the discharge and discharge timing of the storage battery 14 according to the discharge amount calculated by the calculation unit 11.
  • the storage battery 14 can be discharged so that the electric charge becomes the lowest price, the electric charge can be suppressed.
  • the high price time zone includes at least a first high price time zone and a second high price time zone in which the power purchase unit price is larger than the first high price time zone.
  • the control unit 12 determines the discharge start time of the storage battery 14 according to the insufficient power amount in the first high price time zone, the insufficient power amount in the second high price time zone, and the capacity of the storage battery 14.
  • the calculation unit 11 calculates the discharge amount and the charge amount of the storage battery 14 before a predetermined time before the start time of the low price time zone, and the control unit 12 performs a predetermined period from the start time of the low price time zone.
  • the charging / discharging and charging / discharging timing of the storage battery 14 are controlled according to the discharge amount and the charge amount calculated by the calculation unit 11.
  • the predetermined period is 24 hours, but is not limited thereto.
  • the predetermined period may be 12 hours or the like, or may be a period determined by the charge / discharge control device 10 so that the electricity bill can be suppressed.
  • it may be a period according to each cycle of the power purchase unit price, from the start time of the lowest power purchase unit price (start time of the low price period) to the start time of the next lowest power purchase unit price It may be a period.
  • the calculation unit 11 calculates the discharge amount and the charge amount of the storage battery 14 for each predetermined period, and the control unit 12 performs charge / discharge and charge / discharge of the storage battery 14 in the predetermined period.
  • the timing is controlled according to the discharge amount and the charge amount calculated by the calculation unit 11, the present invention is not limited to this.
  • the calculation unit 11 calculates the discharge amount and the charge amount of the storage battery 14 during the predetermined period. You may recalculate.
  • the control unit 12 may control charging / discharging and charging / discharging timing of the storage battery 14 according to the amount of discharge and the amount of charge recalculated by the calculation unit 11.
  • the comprehensive or specific aspect of the present invention may be realized by a system, a method, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM.
  • the system, method, integrated circuit, computer You may implement

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un dispositif de commande (10) de charge/décharge, qui commande la charge/décharge d'un accumulateur (14) devant être chargé en puissance électrique générée par un dispositif générateur de puissance (13) et en puissance connectée au réseau électrique provenant d'un réseau électrique (200), qui est équipé : d'une unité de calcul (11) pour le calcul d'une quantité de décharge et d'une quantité de charge de l'accumulateur (14) en fonction de la relation de magnitude entre le prix d'achat unitaire de puissance et le prix de vente unitaire de puissance de la puissance connectée au réseau électrique pendant une période préétablie, et d'une valeur estimée de puissance demandée par un client et d'une valeur estimée de la puissance générée par le dispositif de génération de puissance (13) ; et une unité de commande (12) pour la commande de la charge/décharge de l'accumulateur (14) et la synchronisation de la charge/décharge pendant la période préétablie en fonction de la quantité de décharge et de la quantité de charge calculées par l'unité de calcul (11).
PCT/JP2016/004808 2015-11-06 2016-11-04 Dispositif de commande de charge/décharge, procédé de commande de charge/décharge, et programme WO2017077716A1 (fr)

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