WO2012046832A1 - Système d'alimentation - Google Patents

Système d'alimentation Download PDF

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Publication number
WO2012046832A1
WO2012046832A1 PCT/JP2011/073181 JP2011073181W WO2012046832A1 WO 2012046832 A1 WO2012046832 A1 WO 2012046832A1 JP 2011073181 W JP2011073181 W JP 2011073181W WO 2012046832 A1 WO2012046832 A1 WO 2012046832A1
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WO
WIPO (PCT)
Prior art keywords
power
storage unit
unit
amount
power storage
Prior art date
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PCT/JP2011/073181
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English (en)
Japanese (ja)
Inventor
敦史 須山
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三洋電機株式会社
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Filing date
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Publication of WO2012046832A1 publication Critical patent/WO2012046832A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • 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
    • H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
    • 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
    • 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
    • H02J2310/62—The condition being non-electrical, e.g. temperature
    • H02J2310/64—The condition being economic, e.g. tariff based load management
    • 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
    • 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
    • Y04S50/00—Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
    • Y04S50/10—Energy trading, including energy flowing from end-user application to grid

Definitions

  • the present invention relates to a power supply system that uses power supplied by discharging a storage battery.
  • the above-mentioned electric power company sets a price (hereinafter referred to as a unit price) per unit power amount (for example, 1 kWh) of power (hereinafter referred to as commercial power) supplied to the consumer.
  • a unit price for example, 1 kWh
  • commercial power supplied to the consumer.
  • electric power companies that have large-scale power generation facilities and supply power to all consumers in a given area are cheaper at night when the demand for commercial power is high and the demand for commercial power is low.
  • the fixed unit price is often set in a contract with a consumer.
  • a power supply system that can supply not only commercial power but also power supplied by discharging a storage battery.
  • the storage battery can be discharged at an arbitrary timing and supplied with power by consuming commercial power and charging in advance. That is, a consumer who uses such a power supply system can change the timing of consuming commercial power by controlling the timing of charging and discharging the storage battery. For example, in Patent Document 1, the storage battery is charged at a specific time (22:00 to 8:00) where the unit price of commercial power is low, and the storage battery is discharged at a specific time (from 8:00 to 22:00) where the unit price of commercial power is high. By controlling in this way, a power supply system has been proposed that reduces the price of commercial power.
  • variable unit prices are often set.
  • the unit price of variability may be set in the buying and selling of commercial power between the power company and the consumer.
  • the time when the unit price of commercial power is high or the time when the unit price is low may vary. Therefore, for example, in the power supply system proposed in Patent Document 1, it is impossible to grasp the time when the unit price of commercial power is high or the time when the unit price is low, and it becomes impossible to reduce the price of commercial power.
  • an object of the present invention is to provide a power supply system that controls charging and discharging of a power storage unit according to a price per unit power amount of commercial power that may fluctuate.
  • the power supply system includes a power storage unit that consumes and charges commercial power, supplies the charged power by discharging, and information indicating a price per unit power amount of the commercial power.
  • a price information acquisition unit that acquires certain price information, a price per unit power amount of power charged in the power storage unit, and a unit power amount of commercial power based on the price information acquired by the price information acquisition unit
  • a power storage unit control unit that controls at least one of charging and discharging of the power storage unit by obtaining and comparing the winning price.
  • control unit when the power storage unit control unit has a price per unit power amount of power charged in the power storage unit higher than a price per unit power amount of commercial power, Control that allows charging of the power storage unit, and discharge of the power storage unit when the price per unit power amount of commercial power is higher than the price per unit power amount of power charged in the power storage unit. It is also possible to perform at least one of the allowable control.
  • the power storage unit control unit is configured such that a price per unit power amount of power charged in the power storage unit is per unit power amount when commercial power is charged in the power storage unit.
  • the power storage unit control unit determines that the price per unit power amount of power charged in the power storage unit is a reciprocal of charging efficiency to the price per unit power amount of commercial power.
  • the control for allowing charging of the power storage unit and the price per unit power amount of commercial power are the same as the price per unit power amount of power charged in the power storage unit.
  • the price is higher than the price obtained by multiplying the reciprocal of the discharge efficiency, at least one of the control to permit the discharge of the power storage unit may be performed.
  • the power amount charged in the power storage unit before the charging is changed to the power amount before the charging. Obtained by multiplying the value obtained by multiplying the price per unit amount of power charged in the power storage unit and the amount of commercial power consumed by the charge by the price per unit amount of commercial power. The value obtained by dividing the sum of the value and the amount of power charged in the power storage unit after the charging may be used as the price per unit power of the power charged in the power storage unit after the charging. I do not care.
  • the amount of power that is charged in the power storage unit before charging, the price per unit power amount of power that is charged in the power storage unit before charging, and the amount of commercial power that is consumed during charging Therefore, it is possible to easily obtain the price per unit power amount of the electric power charged in the power storage unit after charging only by grasping the price (price information) per unit power amount of the commercial power. For example, without knowing (recording) the amount of commercial power consumed when charging all the power storage units in the past and the price per unit power of commercial power at that time, The price per unit electric energy can be obtained.
  • the power storage unit control unit obtains a value obtained by multiplying the difference between the remaining capacities of the power storage unit before and after charging by the reciprocal of charging efficiency, and the commercial power consumed by the charging. It does not matter as the amount of power.
  • the power storage unit control unit can easily and accurately obtain the amount of commercial power consumed by charging simply by checking the remaining capacity of the power storage unit before and after charging.
  • the charging efficiency is a value obtained by dividing the amount of commercial power consumed to charge the power storage unit and the amount of power stored in the power storage unit by the charging.
  • the discharge efficiency may be a value obtained by dividing the amount of power lost by the power storage unit by discharging the power storage unit and dividing the amount of power supplied by the power storage unit by the discharge. .
  • the price per unit time of commercial power can fluctuate per unit time, and the price per unit power amount increases as the unit time increases. It does not matter.
  • FIG. 4 is a flowchart illustrating an example of a control operation of a power storage unit by a power storage unit control unit of the power supply system of FIG. 3.
  • FIG. 1 is a block diagram illustrating an example of a method of supplying power by an electric power company.
  • the solid arrows connecting the blocks in FIG. 1 indicate the exchange of power, and the broken arrows indicate the exchange of information.
  • the example shown in FIG. 1 illustrates the case where power is supplied to consumers C1 to C3 via wholesale power supplier S1 and power supply manager S2. Note that both the wholesale power supplier S1 and the power supply manager S2 can be interpreted as one form of the power company.
  • the wholesale power supplier S1 acquires commercial power by generating power by itself or purchasing it from another power company at the wholesale power exchange M.
  • the power supply manager S2 purchases commercial power from the wholesale power supplier S1.
  • the power supply manager S2 may purchase commercial power from another power company at the wholesale power exchange M without going through the wholesale power supplier.
  • the commercial power may be traded at a variable unit price.
  • Commercial power may be traded at a unit price.
  • the power supply manager S2 sells and supplies commercial power to, for example, consumers C1 to C3 in the apartment house.
  • the power supply manager S2 sells commercial power at a variable unit price and notifies the consumers C1 to C3 of price information indicating the unit price of commercial power.
  • the unit price of the commercial power may vary every unit time (for example, 1 hour or 30 minutes).
  • FIG. 2 is a graph showing an example of fluctuations in the unit price of commercial power.
  • the unit time is 1 hour
  • the unit price of commercial power in each unit time is indicated by the height of the bar.
  • the power supply manager S2 can set a unit price of commercial power that varies from moment to moment.
  • the price information may indicate the unit price of commercial power in one unit time at the present time (or the latest), or may indicate the unit price of commercial power in a plurality of unit times in the future. .
  • the price information indicates the unit price of commercial power in one unit time (or the most recent), and the power supply manager S2 makes a unit time (for example, each The case where price information is notified to consumers C1 to C3 at the start of unit time) will be exemplified.
  • Power supply system Next, the power supply system possessed by the consumers C1 to C3 in FIG. 1 (consumer C in FIG. 3) will be described with reference to the drawings.
  • FIG. 3 is a block diagram illustrating a configuration example of the power supply system according to the embodiment of the present invention. As in FIG. 1, in FIG. 3, the power exchange of each block is indicated by a solid arrow, and the information exchange is indicated by a broken arrow.
  • the power supply system 1 of the consumer C includes a power storage unit 10 that consumes and charges commercial power and supplies the charged power by discharging, and a price information acquisition unit 11 that acquires price information. And at least one of a power storage unit control unit 12 that controls charging and discharging of the power storage unit 10 based on price information acquired by the price information acquisition unit 11, and commercial power and power supplied by discharging of the power storage unit 11.
  • a load unit 13 for consumption is shown in FIG. 3, the power supply system 1 of the consumer C.
  • the power storage unit 10 is composed of, for example, a large-capacity storage battery, is charged by appropriately converting supplied commercial power (for example, converting AC power to DC power), and appropriately converting the charged power (for example, The DC power is converted into AC power and supplied to the load unit 13.
  • the power storage unit 10 estimates the amount of charged electric power (hereinafter referred to as remaining capacity) and notifies the power storage unit control unit 12 of the estimated amount.
  • the power storage unit 10 measures the amount of electric power or current to be charged and discharged, or includes a table indicating the relationship between the voltage value of the power storage unit 10 and the remaining capacity, and measures the voltage value of the power storage unit 10 and the table.
  • the remaining capacity is estimated by referring to.
  • the price information acquisition unit 11 includes, for example, a smart meter that can communicate with the power supply manager S2, and acquires price information notified from the power supply manager S2.
  • the price information acquisition unit 11 recognizes the unit price of commercial power by acquiring the price information, and the unit price is given to the consumer C by light (for example, image display, lamp lighting, etc.) or sound. You may notify.
  • the power storage unit control unit 12 performs at least one of charging and discharging of the power storage unit 10 based on the remaining capacity acquired from the power storage unit 10 and the price information acquired by the price information acquisition unit 11. In the following, for the sake of concrete explanation, a case where the power storage unit control unit 12 can control charging and discharging of the power storage unit 10 is illustrated.
  • the load unit 13 includes various loads that operate by consuming the supplied power (for example, various devices such as lighting, air conditioners, and refrigerators provided in homes and stores). Further, a part or all of the load of the load unit 13 can consume not only commercial power but also power supplied by discharging the power storage unit 10.
  • FIG. 4 is a flowchart illustrating an example of the control operation of the power storage unit by the power storage unit control unit of the power supply system of FIG. 3.
  • Cost_ave (1) which is a price (ie, unit price) per unit power amount (for example, 1 kWh) of the electric power charged in the power storage unit 10, is set ( STEP 1).
  • Cost_ave (1) for example, Cost_ave (t) obtained at the end of the previous operation may be applied, or a value based on the remaining capacity of the power storage unit 10 may be used. Also, a predetermined value such as 0 may be used.
  • the power storage unit control unit 12 confirms whether or not price information has been acquired via the price information acquisition unit 11 (STEP 2).
  • the power storage unit control unit 12 stands by unless price information is acquired (STEP 2, NO).
  • the power storage unit control unit 12 confirms whether or not the remaining capacity SOC (t) of the power storage unit 10 is substantially 0 (STEP 3).
  • the remaining capacity SOC (t) of the power storage unit 10 is not substantially 0 (greater than 0) (STEP 3, NO)
  • Cost_now (t) is the current unit price of commercial power that the power storage unit control unit 12 grasps from the price information.
  • ⁇ is the reciprocal of discharge efficiency (the amount of power lost by the power storage unit 10 by discharging the power storage unit 10 and obtained by dividing the amount of power supplied by the power storage unit 10 by the discharge).
  • the electrical storage part control part 12 accept
  • FIG. When this control is completed (for example, when the end time of the unit time is reached), the power storage unit control unit 12 increases the variable t by 1 for the control of the power storage unit 10 in the next unit time (STEP 6). Further, the unit price Cost_ave (t ⁇ 1) of the power charged in the power storage unit 10 in the current unit time is set as the unit price Cost_ave (t) of the power charged in the power storage unit 10 in the next unit time ( (Step 7).
  • the electrical storage part control part 12 confirms whether control of the electrical storage part 10 is complete
  • the process returns to STEP 2 to confirm acquisition of price information.
  • the control of the power storage unit 10 is ended (STEP 8, YES)
  • the control of the power storage unit 10 is ended.
  • the power storage unit control unit 12 Charging the power storage unit 10 is allowed (STEP 11). Thereby, while the electrical storage part 10 can consume and charge commercial power, the load part 13 can consume commercial power.
  • the power storage unit control unit 12 increases the variable t by 1 for the control of the power storage unit 10 in the next unit time (STEP 12).
  • the unit price Cost_ave (t) of the power charged in the power storage unit 10 in the next unit time is calculated as in the following formula (3) (STEP 13).
  • t is an integer of 2 or more.
  • the control unit 12 calculates the unit price Cost_ave (t) of the power charged in the power storage unit 10 in the next unit time as in the above equation (3), the control of the power storage unit 10 is performed as described above. It is confirmed whether or not to end (STEP 8).
  • the power storage unit control unit 12 Do not allow charging and discharging. Thereby, the load part 13 can consume commercial power.
  • the power storage unit control unit 12 increases the variable t by 1 as described above (STEP 6), and the power storage unit 10 in the next unit time is changed.
  • the unit price Cost_ave (t) of the charged electric power is set (STEP 7), and it is confirmed whether or not the control of the power storage unit 10 is finished (STEP 8).
  • the power storage unit control unit 12 allows the power storage unit 10 to be charged (STEP 11). Then, as described above, the power storage unit control unit 12 increases the variable t by 1 (STEP 12), and calculates the unit price Cost_ave (t) of the power charged in the power storage unit 10 in the next unit time (STEP 13). ), Whether to end the control of the power storage unit 10 is confirmed (STEP 8).
  • the case where the above expression (1) is satisfied in STEP 4 is a case where the unit price Cost_now (t) of the commercial power is higher than the unit price Cost_ave (t) of the power charged in the power storage unit 10. Therefore, by allowing discharge of power storage unit 10 in this case, it is possible to preferentially consume power with low unit price (power charged in power storage unit 10). Therefore, it becomes possible to reduce the power charge of commercial power.
  • the unit cost Cost_now (t) of the commercial power is more than the unit cost Cost_ave (t) ⁇ ⁇ when the power charged in the power storage unit 10 is discharged. This is when it becomes higher. Therefore, in this case, by allowing the power storage unit 10 to discharge, considering the reduction of the amount of power accompanying the discharge of the power storage unit 10, the power with low unit price (power charged in the power storage unit 10) can be accurately obtained. This makes it possible to preferentially consume the power. Therefore, it is possible to effectively reduce the commercial electricity charge.
  • the case where the expression (2) is satisfied in STEP 9 is a case where the unit price Cost_ave (t) of the power charged in the power storage unit 10 is higher than the unit price Cost_now (t) of the commercial power. . Therefore, by allowing charging of the power storage unit 10 in this case, it is possible to preferentially consume power (commercial power) with a low unit price. Therefore, it becomes possible to reduce the power charge of commercial power.
  • the unit price Cost_ave (t) of the power charged in the power storage unit 10 is the unit price Cost_now (t) when the commercial power is charged in the power storage unit 10 It is a case where it becomes higher than x ⁇ . Therefore, in this case, by allowing charging of the power storage unit 10, power (commercial power) with a low unit price is accurately determined in consideration of a decrease in the amount of power accompanying charging of the power storage unit 10, and the power is given priority. Consumption. Therefore, it is possible to effectively reduce the commercial electricity charge.
  • the unit cost Cost_now (t) ⁇ ⁇ when the power storage unit 10 is charged with commercial power when the reciprocal ⁇ of charging efficiency and the reciprocal ⁇ of discharging efficiency are used as in the above formula (1) and the above formula (2), the unit cost Cost_now (t) ⁇ ⁇ when the power storage unit 10 is charged with commercial power.
  • the unit price Cost_ave (t) ⁇ ⁇ when the power charged in the power storage unit 10 is discharged can be easily and accurately calculated.
  • the unit price Cost_ave (t) of the power charged in the power storage unit 10 in the next unit time is calculated as in the above equation (3), the amount of power SOC ( t-1), unit price Cost_ave (t-1) of power charged in the power storage unit 10 before charging, and amount of commercial power consumed at the time of charging ⁇ SOC (t) -SOC (t-1) ⁇ It is possible to easily calculate ⁇ ⁇ only by grasping the unit price (price information) Cost_now (t ⁇ 1) of the commercial power. For example, the unit price of power charged in the power storage unit 10 is obtained without grasping (recording) the amount of commercial power consumed when charging all the power storage units 10 in the past and the unit price of commercial power at that time. It becomes possible.
  • the power storage unit control unit 12 can easily and accurately determine the amount of commercial power consumed by charging simply by checking the remaining capacities SOC (t) and SOC (t ⁇ 1) of the power storage unit 10 before and after charging. It is possible to ask.
  • step 2 of FIG. 4 it may be confirmed whether or not the unit time has started.
  • the power storage unit control unit 12 waits unless confirming the start of the unit time (corresponding to NO in STEP 2), and performs STEP 3 by confirming the start of the unit time (corresponding to YES in STEP 2).
  • the power storage unit control unit 12 may confirm whether or not the remaining capacity SOC (t) of the power storage unit 10 is smaller than a predetermined value.
  • the predetermined value is set to a value small enough to determine that the power storage unit 10 needs to be charged.
  • the power storage unit control unit 12 performs STEP 11 if the remaining capacity SOC (t) of the power storage unit 10 is smaller than the predetermined value (corresponding to YES in STEP 3), and if it is equal to or greater than the predetermined value (NO in STEP 3) Step 4 is performed.
  • the electrical storage part control part 12 may confirm whether the remaining capacity SOC (t) of the electrical storage part 10 is larger than a predetermined value.
  • the predetermined value is set to a value large enough to determine that charging of the power storage unit 10 is unnecessary.
  • the power storage unit control unit 12 performs STEP 6 if the remaining capacity SOC (t) of the power storage unit 10 is larger than the predetermined value (corresponding to YES in STEP 10), and if it is less than the predetermined value (NO in STEP 10). Step 11 is performed.
  • a part or all of the operations of the price information acquisition unit 11, the power storage unit control unit 12, the power storage unit 10 and the like may be performed by a control device such as a microcomputer. I do not care. Further, all or part of the functions realized by such a control device is described as a program, and the program is executed on a program execution device (for example, a computer) to realize all or part of the functions. It doesn't matter if you do.
  • the power supply system 1 shown in FIG. 3 is not limited to the above-described case, and can be realized by hardware or a combination of hardware and software. Further, when realizing a part of the power supply system 1 using software, a block for a part realized by the software represents a functional block of the part.
  • the present invention can be used for a power supply system that uses power supplied by discharging a power storage unit.

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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)

Abstract

L'objet de la présente invention est de fournir un système d'alimentation, grâce auquel le chargement/le déchargement d'une unité de stockage de courant est commandé en fonction du prix par quantité de courant unitaire de courant commercial, qui peut fluctuer. A cet effet, le système d'alimentation (1) selon l'invention est pourvu : d'une unité de stockage de courant (10) consommant du courant commercial pour effectuer son chargement et déchargeant le courant chargé pour apporter du courant ; d'une unité d'acquisition d'informations de prix (11) acquérant des informations de prix indiquant le prix par quantité de courant unitaire de courant commercial ; et d'une unité de commande d'unité de stockage de courant (12) commandant le chargement et/ou le déchargement de l'unité de stockage de courant (10). L'unité de commande d'unité de stockage de courant (12) commande le chargement et/ou le déchargement de l'unité de stockage de courant (10), par obtention du prix par quantité de courant unitaire du courant chargé dans l'unité de stockage de courant (10) en fonction des informations de prix acquises par l'unité d'acquisition d'informations de prix, et du prix par quantité de courant unitaire du courant commercial.
PCT/JP2011/073181 2010-10-08 2011-10-07 Système d'alimentation WO2012046832A1 (fr)

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JP2010-228114 2010-10-08
JP2010228114A JP2014003726A (ja) 2010-10-08 2010-10-08 電力供給システム

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WO2012046832A1 true WO2012046832A1 (fr) 2012-04-12

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WO2013144577A3 (fr) * 2012-03-30 2014-07-17 Sony Corporation Stockage d'énergie
JP5579954B1 (ja) * 2013-10-31 2014-08-27 中国電力株式会社 蓄電池の充放電計画装置、蓄電池の充放電計画方法、プログラム、蓄電池の充放電装置
JP5661975B1 (ja) * 2013-11-19 2015-01-28 中国電力株式会社 蓄電池の制御装置、制御方法、制御プログラム、および蓄電システム

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US11621580B2 (en) 2021-08-31 2023-04-04 Savant Systems, Inc. Microgrid switchover using zero-cross detection

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CN105580235A (zh) * 2013-11-19 2016-05-11 中国电力株式会社 蓄电池的控制装置、控制方法、控制程序以及蓄电系统

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