JP2017034738A - Storage battery operation management unit and storage battery operation management method - Google Patents
Storage battery operation management unit and storage battery operation management method Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Abstract
Description
本発明は、蓄電および放電により電力供給を調整する蓄電池の運用管理を行う技術に関し、例えば、スマートグリッドにおける蓄電池の運用管理を行う技術に関する。 The present invention relates to a technique for performing operation management of a storage battery that adjusts power supply by power storage and discharge, and, for example, relates to a technique for performing operation management of a storage battery in a smart grid.
近年の研究開発により蓄電池は大容量化および低価格化が進んでいる。今後ますます電力系統などの電力供給システムにおける蓄電池の利用が期待される。電気料金が安価な夜間の時間帯に蓄電池を充電し、昼間の時間帯に蓄電池から放電することにより、負荷による電力消費で生じる電気料金を削減することが可能である。我国においては、電力の制度改革が進みつつあり、今後更なる最適な蓄電池の利用に期待がかかる。 Due to recent research and development, storage batteries have been increasing in capacity and price. In the future, it is expected that storage batteries will be used in power supply systems such as power systems. By charging the storage battery at nighttime hours when the electricity charge is cheap and discharging from the storage battery during the daytime time, it is possible to reduce the electricity charge caused by power consumption by the load. In Japan, power system reforms are progressing, and there are expectations for further optimal use of storage batteries.
しかしながら、蓄電池を運用する場合には様々なロスが生じる。例えば、蓄電池と商用電源の間で直流電力と交流電力の変換を行うＰＣＳ（パワーコンディショニングシステム）では充電時にも放電時にもロスが生じ、電力供給の効率を低下させる。ＰＣＳ等の効率は単純な線形特性ではなく電力出力に伴って非線形に変化し、これを数式に表現するのは困難である。そのため、蓄電池の最適な充電および放電の計画を立て、その通りに蓄電池を運用したとしても、効率の誤差により蓄電量の実績は予想とずれてくる。 However, various losses occur when the storage battery is operated. For example, in a PCS (power conditioning system) that converts DC power and AC power between a storage battery and a commercial power source, a loss occurs during charging and discharging, thereby reducing the efficiency of power supply. The efficiency of PCS or the like is not a simple linear characteristic but changes nonlinearly with power output, and it is difficult to express this in a mathematical expression. For this reason, even if an optimal charging and discharging plan for the storage battery is made and the storage battery is operated in accordance with the plan, the actual amount of stored power is not expected due to an error in efficiency.
特許文献１に記載された技術では、計画と実績の偏差を監視し、偏差が一定以上になった段階で再計画を実施する。それにより蓄電池の計画と実績の偏差を一定範囲内に抑えられる。 In the technique described in Patent Document 1, a deviation between a plan and an actual result is monitored, and re-planning is performed when the deviation becomes a certain level or more. Thereby, the deviation between the plan and the actual result of the storage battery can be suppressed within a certain range.
しかしながら、特許文献１に記載された技術によると、再計画を実施するか否かを判断するための偏差に対する閾値を小さい値に設定すると再計画が頻繁に実施されることになる。運用する蓄電池の数が多い場合などには、再計画の計算量が膨大となり、所定時間内に全ての計算が終了しない恐れがある。一方、閾値を大きな値に設定すると、蓄電量の計画と実績の間に大きな偏差を許容することとなり、蓄電池の容量を効率よく利用できない恐れがある。 However, according to the technique described in Patent Document 1, if the threshold for the deviation for determining whether or not to perform re-planning is set to a small value, re-planning is frequently performed. When the number of storage batteries to be operated is large, the amount of re-planning calculation becomes enormous, and there is a possibility that all calculations are not completed within a predetermined time. On the other hand, if the threshold value is set to a large value, a large deviation is allowed between the plan and the actual amount of stored electricity, and the capacity of the storage battery may not be used efficiently.
本発明は、計算量の増大を抑えながら蓄電池を効率よく利用することを可能にする技術を提供することを目的とする。 An object of this invention is to provide the technique which makes it possible to use a storage battery efficiently, suppressing the increase in computational complexity.
本発明の一つの実施態様に従う蓄電池運用管理装置は、充放電を制御可能な蓄電池の運用を管理する蓄電池運用管理装置であって。将来の前記蓄電池の蓄電量の推移の予定を示す蓄電量スケジュールを作成する蓄電量スケジュール計算部と、前記蓄電池の蓄電量の実績を示す蓄電量実績値を収集する蓄電池データ収集部と、現在の蓄電量実績値を前記蓄電量スケジュールと一致させるように前記蓄電池への充放電の指令値を決定する蓄電池指令計算部と、を有している。 The storage battery operation management apparatus according to one embodiment of the present invention is a storage battery operation management apparatus that manages the operation of a storage battery capable of controlling charging and discharging. A storage amount schedule calculation unit for creating a storage amount schedule indicating a schedule of the transition of the storage amount of the storage battery in the future, a storage battery data collection unit for collecting a storage amount actual value indicating a storage amount storage result of the storage battery, and a current A storage battery command calculation unit that determines a charge / discharge command value for the storage battery so that a storage amount actual value matches the storage amount schedule.
本発明によれば、蓄電池の実際の蓄電量を蓄電量スケジュールと一致させるように制御することにより、計算の負担を抑えながら蓄電池を効率よく利用することができる。 According to the present invention, by controlling the actual storage amount of the storage battery so as to coincide with the storage amount schedule, the storage battery can be efficiently used while suppressing the calculation burden.
本発明の実施形態について図面を参照して説明する。 Embodiments of the present invention will be described with reference to the drawings.
図１は、本実施形態による蓄電池運用管理装置の基本構成を示すブロック図である。 FIG. 1 is a block diagram showing a basic configuration of the storage battery operation management apparatus according to the present embodiment.
電力系統３０５または蓄電池３０１から電力が電気機器３０４に供給される。蓄電池３０１は、充放電がを制御可能な蓄電装置である。蓄電池３０１は電力系統３０５からの電力を蓄積し、電気機器３０４に供給することができる。負荷情報源３０２は電気機器３０４の消費電力（負荷）を計測し、負荷情報として蓄電池運用管理装置１０に提供する。気象情報源３０３は、天候や気温などの予報および実績を含む気象情報を蓄電池運用管理装置１０に提供する。例えば、気象情報源３０３は気象情報を提供する機関により運営されるサーバである。 Electric power is supplied from the power system 305 or the storage battery 301 to the electrical device 304. The storage battery 301 is a power storage device that can control charging and discharging. The storage battery 301 can store the power from the power system 305 and supply it to the electric device 304. The load information source 302 measures the power consumption (load) of the electric device 304 and provides it to the storage battery operation management apparatus 10 as load information. The weather information source 303 provides the storage battery operation management apparatus 10 with weather information including forecasts and results such as weather and temperature. For example, the weather information source 303 is a server operated by an organization that provides weather information.
蓄電池運用管理装置１０は、充放電を制御可能な蓄電池３０１の運用を管理する装置であり、蓄電量スケジュール計算部２０２、蓄電池データ収集部２０３、および蓄電池指令計算部２０４を有している。 The storage battery operation management apparatus 10 is an apparatus that manages the operation of the storage battery 301 that can control charge / discharge, and includes a storage amount schedule calculation unit 202, a storage battery data collection unit 203, and a storage battery command calculation unit 204.
図２は、本実施形態による蓄電池運用管理装置の動作を示すフローチャートである。 FIG. 2 is a flowchart showing the operation of the storage battery operation management apparatus according to the present embodiment.
蓄電量スケジュール計算部２０２は、将来の蓄電池３０１の蓄電量の推移の予定を示す蓄電量スケジュールを作成する（ステップＳ１０１）。蓄電池データ収集部２０３は、蓄電池３０１の蓄電量の実績を示す蓄電量実績値を収集する。蓄電池指令計算部２０４は、現在の蓄電量実績値を蓄電量スケジュールと一致させるように蓄電池３０１への充放電の指令値を決定する。蓄電池３０１の蓄電量を蓄電量スケジュールと一致させるように制御することにより、蓄電量の実績が計画からずれるのを抑制して蓄電量スケジュールの再計算の必要性を低下させることができるので、再計算の負担を抑えながら蓄電池３０１を効率よく利用することができる。 The power storage amount schedule calculation unit 202 creates a power storage amount schedule indicating a planned transition of the storage amount of the storage battery 301 in the future (step S101). The storage battery data collection unit 203 collects the storage amount actual value indicating the storage amount record of the storage battery 301. The storage battery command calculation unit 204 determines a charge / discharge command value for the storage battery 301 so that the current storage amount actual value matches the storage amount schedule. By controlling the storage amount of the storage battery 301 to match the storage amount schedule, it is possible to reduce the necessity of recalculation of the storage amount schedule by suppressing the actual storage amount from deviating from the plan. The storage battery 301 can be used efficiently while suppressing the calculation burden.
その際、蓄電量スケジュール計算部２０２は、将来の予想される気温と過去における気温の実績と過去における負荷の実績とに基づき将来の負荷を予測し、電気料金を抑えて将来の負荷を賄うように、将来の受電電力および蓄電池３０１の充放電を遷移させる蓄電量スケジュールを作成する。これによれば、負荷を予測しようとする将来時点と気温が近い過去のデータから将来の負荷を予測し、電気料金を抑えつつその負荷を賄うように蓄電量の予定を決定するので、気象条件に合った良好な蓄電量スケジュールを作成することができる。 At that time, the storage amount schedule calculation unit 202 predicts the future load based on the predicted future temperature, the past temperature record, and the past load record, so as to cover the future load by suppressing the electricity bill. In addition, a power storage amount schedule for transitioning between future received power and charging / discharging of the storage battery 301 is created. According to this, the future load is predicted from past data that is close to the future time point and the temperature at which the load is predicted, and the storage amount schedule is determined so as to cover the load while suppressing the electricity bill. It is possible to create a good power storage amount schedule suitable for the
より具体的には、蓄電量スケジュール計算部２０２は、負荷を予測しようとする将来日の予想される最高気温との乖離が最も小さい最高気温の実績を有する過去日の負荷の実績をその将来日の予測される負荷とする。予測しようとする日の負荷を求めるとき、情報を取得しやすい一日の最高気温を用い、最高気温が最も近い過去の日の負荷の実績を用いるので、簡易な計算で将来の負荷を予測することができる。 More specifically, the power storage amount schedule calculation unit 202 obtains the load results of the past day having the highest temperature record with the smallest deviation from the predicted highest temperature of the future date on which the load is predicted. The expected load of When calculating the load of the day to be predicted, the maximum temperature of the day for which information can be easily obtained is used, and the actual load of the past day with the highest maximum temperature is used, so the future load can be predicted with a simple calculation. be able to.
また、蓄電量スケジュール計算部２０２は、蓄電池３０１の出力上限および出力下限と、蓄電池３０１の蓄電量上限および蓄電量下限と、が予め定めておき、蓄電池３０１の出力を出力下限以上出力上限以下の範囲とし、蓄電池３０１の蓄電量を蓄電量下限以上蓄電池上限以下の範囲とするように、将来の受電電力および蓄電池３０１の充放電を遷移させる蓄電量スケジュールを算出することにしてもよい。 In addition, the storage amount schedule calculation unit 202 predetermines the output upper limit and output lower limit of the storage battery 301 and the storage amount upper limit and storage amount lower limit of the storage battery 301, and the output of the storage battery 301 is equal to or higher than the output lower limit and below the output upper limit. It is also possible to calculate a storage amount schedule for transitioning the future received power and charging / discharging of the storage battery 301 so that the storage amount of the storage battery 301 is in a range not less than the storage amount lower limit and not more than the storage battery upper limit.
また、一例として、蓄電池指令計算部２０４は、将来の受電電力が契約電力を超過する場合、受電電力から契約電力を減算した超過電力を、蓄電池３０１のそれぞれに蓄電容量に応じて分配するように、各蓄電池３０１への充放電の指令値を決定することにしてもよい。受電電力が契約電力を超過すると高額の電気料金が発生するが、超過電力を複数の蓄電池３０１に蓄電容量に応じて分配するので、偏りなく複数の蓄電池３０１を利用して契約電力の超過を解消することができる。 Further, as an example, when the future received power exceeds the contract power, the storage battery command calculation unit 204 distributes the excess power obtained by subtracting the contract power from the received power to each of the storage batteries 301 according to the storage capacity. The charging / discharging command value for each storage battery 301 may be determined. When the received power exceeds the contract power, a large electricity bill is generated, but the excess power is distributed to the plurality of storage batteries 301 according to the storage capacity, so the excess of contract power is eliminated by using the plurality of storage batteries 301 without bias. can do.
また、他の例として、蓄電池指令計算部２０４は、将来の受電電力が契約電力を超過する場合、超過電力を、蓄電池３０１のそれぞれに蓄電池空き容量に応じて分配するように、各蓄電池３０１への充放電の指令値を決定することにしてもよい。この場合も、超過電力を複数の蓄電池３０１に蓄電池空き容量に応じて分配するので、複数の蓄電池３０１の充電状態が偏らないように契約電力の超過を解消することができる。 As another example, when the future received power exceeds contract power, the storage battery command calculation unit 204 distributes the excess power to each storage battery 301 according to the storage battery free capacity. The charge / discharge command value may be determined. Also in this case, the excess power is distributed to the plurality of storage batteries 301 according to the storage battery free capacity, so that the excess of the contract power can be eliminated so that the charging states of the plurality of storage batteries 301 are not biased.
図３は、本実施形態による蓄電池運用管理装置のハードウェア構成の一例を示すブロック図である。蓄電池運用管理装置１０は、プロセッサ（ＣＰＵ）１、記憶装置（ＭＥＭ）２、外部インタフェース（Ｉ／Ｆ）３、および入出力装置（Ｉ／Ｏ）４を有している。記憶装置２には、蓄電池運用管理装置１０の各部が実行する処理を規定したソフトウェアプログラムが格納されている。プロセッサ１がそのソフトウェアプログラムを記憶装置２から読み出して実行することにより、図１に示した蓄電池運用管理装置１０の各部が実現される。その際、入出力装置４にてユーザによる操作入力を受け付け、また、入出力装置４による画面表示や音声出力でユーザに情報を出力する。また、プロセッサ１は、各処理に際し、外部インタフェース３を通じて、気象情報源３０３、負荷情報源３０２、蓄電池３０１、および電力系統３０５と適宜通信する。 FIG. 3 is a block diagram illustrating an example of a hardware configuration of the storage battery operation management device according to the present embodiment. The storage battery operation management device 10 includes a processor (CPU) 1, a storage device (MEM) 2, an external interface (I / F) 3, and an input / output device (I / O) 4. The storage device 2 stores a software program that defines processing executed by each unit of the storage battery operation management device 10. When the processor 1 reads the software program from the storage device 2 and executes the software program, each unit of the storage battery operation management device 10 illustrated in FIG. 1 is realized. At that time, an operation input by the user is received by the input / output device 4, and information is output to the user by screen display or voice output by the input / output device 4. Further, the processor 1 appropriately communicates with the weather information source 303, the load information source 302, the storage battery 301, and the power system 305 through the external interface 3 in each process.
以下、より具体的な実施例について説明する。 Hereinafter, more specific examples will be described.
図４は、本実施例による蓄電池運用管理装置のブロック図である。図１を参照すると、蓄電池運用管理装置１０は、予想データ収集部２００、実績データ収集部２０１、予想データ記憶部１００、実績データ記憶部１０１、契約電力記憶部１０３、蓄電量スケジュール計算部２０２、機器データ記憶部１０２、蓄電量スケジュールデータ記憶部１０４、蓄電池データ収集部２０３、蓄電池指令計算部２０４、蓄電池出力蓄電量記憶部１０５、蓄電池指令記憶部１０６、および蓄電池指令送信部２０５を有している。 FIG. 4 is a block diagram of the storage battery operation management apparatus according to the present embodiment. Referring to FIG. 1, the storage battery operation management device 10 includes an expected data collection unit 200, an actual data collection unit 201, an expected data storage unit 100, an actual data storage unit 101, a contract power storage unit 103, an electricity storage amount schedule calculation unit 202, It has a device data storage unit 102, a storage amount schedule data storage unit 104, a storage battery data collection unit 203, a storage battery command calculation unit 204, a storage battery output storage amount storage unit 105, a storage battery command storage unit 106, and a storage battery command transmission unit 205. Yes.
予想データ収集部２００、実績データ収集部２０１、蓄電量スケジュール計算部２０２、蓄電池データ収集部２０３、蓄電池指令計算部２０４、および蓄電池指令送信部２０５は、図３に示したプロセッサ１が記憶装置２に記録されたソフトウェアプログラムを実行することにより実現される。 The predicted data collection unit 200, actual data collection unit 201, storage amount schedule calculation unit 202, storage battery data collection unit 203, storage battery command calculation unit 204, and storage battery command transmission unit 205 are stored in the storage device 2 by the processor 1 shown in FIG. This is realized by executing the software program recorded in the above.
予想データ記憶部１００、実績データ記憶部１０１、契約電力記憶部１０３、機器データ記憶部１０２、蓄電量スケジュールデータ記憶部１０４、蓄電池出力蓄電量記憶部１０５、および蓄電池指令記憶部１０６は図３に示した記憶装置２上に構成される記憶領域である。 The predicted data storage unit 100, actual data storage unit 101, contract power storage unit 103, device data storage unit 102, storage amount schedule data storage unit 104, storage battery output storage amount storage unit 105, and storage battery command storage unit 106 are shown in FIG. This is a storage area configured on the storage device 2 shown.
予想データ収集部２００は、最高気温の予想データを収集し、予想データ記憶部１００に最高気温の予想データを記録する。 The prediction data collection unit 200 collects the prediction data of the maximum temperature and records the prediction data of the maximum temperature in the prediction data storage unit 100.
実績データ収集部２０１は、気温と負荷の実績データを収集し、実績データ記憶部１０１に気温と負荷の実績データを記録する。 The actual data collecting unit 201 collects actual temperature and load actual data and records the actual temperature and load actual data in the actual data storage unit 101.
機器データ記憶部１０２は、蓄電池３０１の出力上下限と蓄電池３０１の蓄電量上下限と蓄電池３０１の充放電効率の定数データを予め記憶している。 The device data storage unit 102 stores in advance the upper and lower limits of the output of the storage battery 301, the upper and lower limits of the storage amount of the storage battery 301, and constant data of the charge / discharge efficiency of the storage battery 301.
契約電力記憶部１０３は、契約電力の定数データを予め記憶している。 Contract power storage section 103 stores constant data of contract power in advance.
蓄電量スケジュール計算部２０２は、予想データ記憶部１００に記憶された最高気温の予想データと実績データ記憶部１０１に記憶された気温と負荷の実績データに基づき、負荷を予測する。更に、蓄電量スケジュール計算部２０２は、機器データ記憶部１０２に記憶された蓄電池３０１の出力上下限と蓄電池３０１の蓄電量上下限と蓄電池３０１の充放電効率の定数データと、契約電力記憶部１０３に記憶された契約電力の定数データとに基づき、蓄電池３０１の蓄電量スケジュールを計算し、蓄電量スケジュールデータ記憶部１０４に蓄電量スケジュールのデータを記録する。 The power storage amount schedule calculation unit 202 predicts the load based on the predicted maximum temperature data stored in the predicted data storage unit 100 and the actual temperature and load data stored in the actual data storage unit 101. Further, the storage amount schedule calculation unit 202 includes the output upper and lower limits of the storage battery 301, the upper and lower limits of the storage amount of the storage battery 301, the constant data of the charge / discharge efficiency of the storage battery 301, and the contract power storage unit 103. The storage amount schedule of the storage battery 301 is calculated based on the constant data of the contract power stored in, and the storage amount schedule data storage unit 104 records the storage amount schedule data.
蓄電池データ収集部２０３は、蓄電池３０１の出力と蓄電量の実績データを収集し、蓄電池出力蓄電量記憶部１０５に蓄電池３０１の出力と蓄電量の実績データを記録する。 The storage battery data collecting unit 203 collects the output data of the storage battery 301 and the actual storage amount data, and records the output of the storage battery 301 and the actual storage amount data in the storage battery output storage amount storage unit 105.
蓄電池指令計算部２０４は、実績データ記憶部１０１に記憶された受電電力の実績データと、機器データ記憶部１０２に記憶された蓄電池３０１の出力上下限と蓄電池３０１の蓄電量上下限と蓄電池３０１の充放電効率の定数データと、契約電力記憶部１０３に記憶された契約電力の定数データと、蓄電量スケジュールデータ記憶部１０４に記憶された蓄電量スケジュールのデータと、蓄電池出力蓄電量記憶部１０５に記憶された蓄電池３０１の出力と蓄電量の実績データに基づき、各蓄電池３０１へ充電あるいは放電を指示する蓄電池指令値を計算し、蓄電池指令記憶部１０６に蓄電池指令データを記録する。 The storage battery command calculation unit 204 includes the actual data of the received power stored in the actual data storage unit 101, the output upper and lower limits of the storage battery 301 stored in the device data storage unit 102, the upper and lower limits of the storage amount of the storage battery 301, and the storage battery 301 Charge / discharge efficiency constant data, contract power constant data stored in the contract power storage unit 103, storage amount schedule data stored in the storage amount schedule data storage unit 104, and storage battery output storage amount storage unit 105 Based on the stored output of the storage battery 301 and the actual data of the amount of stored energy, a storage battery command value for instructing the storage battery 301 to charge or discharge is calculated, and the storage battery command storage unit 106 records the storage battery command data.
蓄電池指令送信部２０５は。蓄電池指令記憶部１０６に記憶された蓄電池指令値を各蓄電池３０１に指令する。 Storage battery command transmission unit 205. The storage battery command value stored in the storage battery command storage unit 106 is commanded to each storage battery 301.
図５は、本実施例による蓄電池運用管理装置の動作例を示すフローチャートである。 FIG. 5 is a flowchart showing an operation example of the storage battery operation management apparatus according to the present embodiment.
図５参照すると、予想データ収集部２００が最高気温等の気象予想データを収集し、予想データ記憶部１００に登録する（ステップＳ２０１）。予想データ記憶部１００は、最高気温等の気象予想データを記録する。 Referring to FIG. 5, the forecast data collection unit 200 collects weather forecast data such as the highest temperature and registers it in the forecast data storage unit 100 (step S201). The prediction data storage unit 100 records weather prediction data such as the maximum temperature.
また、実績データ収集部２０１は、気温等の気象実績データ、負荷、および受電電力を含む電力系統実績データを収集し、実績データ記憶部１０１に登録する（ステップＳ２０２）。実績データ記憶部１０１は、気温等の気象実績データ、負荷、受電電力等の電力系統実績データを記憶する。 The actual data collecting unit 201 collects electric power system actual data including weather actual data such as temperature, load, and received power, and registers the collected data in the actual data storage unit 101 (step S202). The result data storage unit 101 stores weather result data such as temperature, and power system result data such as load and received power.
次に、蓄電量スケジュール計算部２０２は、予想データ記憶部１００の気象予想データに基づき、実績データ記憶部１０１の負荷の実績データの中から乖離度が最も小さい日の実績データを検索し、検索で得られた負荷の実績データを負荷の予想データとし、契約電力が最小となるよう蓄電池充放電出力スケジュールを計算し、その結果を蓄電量のデータに変換することにより蓄電量スケジュールのデータを生成し、蓄電量スケジュールデータ記憶部１０４に登録する（ステップＳ２０３）。 Next, the storage amount schedule calculation unit 202 searches the actual data of the day with the smallest divergence from the actual data of the load of the actual data storage unit 101 based on the weather forecast data of the predicted data storage unit 100, and searches The storage load / discharge output schedule is calculated so that the contract power is minimized, and the result is converted into the storage amount data. Then, it is registered in the storage amount schedule data storage unit 104 (step S203).
ここで蓄電池充放電出力スケジュールは、各蓄電池３０１の充放電する電力のスケジュールである。出力は放電の場合には正の値となり、充電の場合には負の値となる。 Here, the storage battery charging / discharging output schedule is a schedule of electric power for charging / discharging each storage battery 301. The output is a positive value in the case of discharging, and a negative value in the case of charging.
また、ここで乖離度は、式（１）で求めることができる。
乖離度＝（（実績データの最高気温）−（予想データの最高気温））２ …(1)
Here, the degree of divergence can be obtained by Expression (1).
Deviance = ((maximum temperature of actual data)-(maximum temperature of forecast data)) 2 … (1)
充電についてスケジュールを作成する際、蓄電量スケジュール計算部２０２は、電気料金が割安な深夜の時間帯において、予想される負荷と充電電力の合計が契約電力を超過しない範囲での充電を計画し、複数の蓄電池３０１へ予め定められた優先順位で充電を行うように各蓄電池３０１の蓄電池充電出力スケジュールを作成する。放電についてスケジュールを作成する際、蓄電量スケジュール計算部２０２は、電気料金が割高な昼間の時間帯において、受電電力が契約電力以下の一定値α以下となるように放電を計画し、全体での蓄電池合計放電スケジュールを作成する。更に、蓄電量スケジュール計算部２０２は、複数の蓄電池３０１が予め定められた優先順位で放電を行うように各蓄電池３０１の蓄電池放電出力スケジュールを作成する。 When creating a schedule for charging, the power storage amount schedule calculation unit 202 plans charging in a range where the total of the expected load and the charging power does not exceed the contracted power in the midnight hours when the electricity rate is cheap, A storage battery charging output schedule for each storage battery 301 is created so that the plurality of storage batteries 301 are charged in a predetermined priority order. When creating a schedule for the discharge, the storage amount schedule calculation unit 202 plans the discharge so that the received power is a certain value α or less, which is less than or equal to the contract power, in the daytime hours when the electricity rate is high. Create a storage battery total discharge schedule. Furthermore, the storage amount schedule calculation unit 202 creates a storage battery discharge output schedule for each storage battery 301 so that the plurality of storage batteries 301 are discharged in a predetermined priority order.
全体での蓄電池放電スケジュールは式（２）（３）を満たすように作成される。 The overall storage battery discharge schedule is created so as to satisfy the equations (2) and (3).
また、蓄電量スケジュール計算部２０２は、上記で求めた蓄電池充電出力スケジュールおよび蓄電池放電出力スケジュールを以下の式（４）（５）により蓄電量スケジュールに変換する。
＜充電時＞
蓄電量スケジュール（i,t）
＝蓄電量スケジュール（i,t-1）＋充電スケジュール（i,t）×充電効率(i) …(4)
＜放電時＞
蓄電量スケジュール（i,t）
＝蓄電量スケジュール（i,t-1）−放電スケジュール（i,t）／放電効率(i) …(5)
The storage amount schedule calculation unit 202 converts the storage battery charge output schedule and the storage battery discharge output schedule obtained above into a storage amount schedule by the following equations (4) and (5).
<When charging>
Charge storage schedule (i, t)
= Power storage schedule (i, t-1) + Charging schedule (i, t) x Charging efficiency (i) (4)
<During discharge>
Charge storage schedule (i, t)
= Power storage schedule (i, t-1) -Discharge schedule (i, t) / Discharge efficiency (i) (5)
ここで、i=1〜N、t=1〜Tである。Nは蓄電池台数であり、Tはスケジュール計算時間数であり、T1は昼間時間帯開始時間であり、T2は昼間時間帯終了時間である。 Here, i = 1 to N and t = 1 to T. N is the number of storage batteries, T is the number of schedule calculation hours, T1 is the daytime time zone start time, and T2 is the daytime time zone end time.
図５に戻り、次に、蓄電池データ収集部２０３は、蓄電池３０１の出力および蓄電量等の蓄電池３０１の実績データを収集し、蓄電池出力蓄電量記憶部１０５に登録する（ステップＳ２０４）。 Returning to FIG. 5, next, the storage battery data collection unit 203 collects performance data of the storage battery 301 such as the output and storage amount of the storage battery 301 and registers it in the storage battery output storage amount storage unit 105 (step S <b> 204).
次に、蓄電池指令計算部２０４は、各蓄電池３０１への指令を作成し、蓄電池指令記憶部１０６に登録する（ステップＳ２０５）。その際、蓄電池指令計算部２０４は、実績データ記憶部１０１の受電電力実績データと契約電力記憶部１０３の契約電力定数データに基づき、式（６）に基づき受電電力が契約電力を超過していないか判断する。
超過電力＝受電電力−契約電力 …(6)
Next, the storage battery command calculation unit 204 creates a command to each storage battery 301 and registers it in the storage battery command storage unit 106 (step S205). At that time, the storage battery command calculation unit 204, based on the received power actual data in the actual data storage unit 101 and the contract power constant data in the contract power storage unit 103, the received power does not exceed the contract power based on Expression (6). Judge.
Excess power = Received power-Contract power (6)
受電電力が契約電力を超過している場合、蓄電池指令計算部２０４は、超過電力を各蓄電池３０１に分配し、蓄電池３０１の放電により超過電力を賄う。超過電力の蓄電池３０１への分配方法の例として、式（７）を用いる方法と、式（８）を用いる方法がある。式（７）は各蓄電池３０１にその蓄電容量に比例して超過電力を分配する。式（８）は各蓄電池３０１にその空き容量に比例して超過電力を分配する。 When the received power exceeds the contract power, the storage battery command calculation unit 204 distributes the excess power to each storage battery 301 and covers the excess power by discharging the storage battery 301. As an example of a method for distributing excess power to the storage battery 301, there are a method using Expression (7) and a method using Expression (8). Expression (7) distributes excess power to each storage battery 301 in proportion to its storage capacity. Equation (8) distributes excess power to each storage battery 301 in proportion to its free capacity.
蓄電池指令計算部２０４は、例えば、機器データ記憶部１０２の蓄電量上限定数データと蓄電池出力蓄電量記憶部１０５の蓄電量実績データに基づき、蓄電量上限から蓄電量を減算して蓄電池３０１の空き容量を計算し、その空き容量に比例して超過電力を分配すればよい。 For example, the storage battery command calculation unit 204 subtracts the storage amount from the storage amount upper limit based on the storage amount upper limit constant data of the device data storage unit 102 and the storage amount actual storage data of the storage battery output storage amount storage unit 105. It is only necessary to calculate the free capacity and distribute the excess power in proportion to the free capacity.
＜蓄電容量を基に分配＞
蓄電池指令値（i）＝超過電力×蓄電容量（i）/蓄電容量合計 …(7)
＜蓄電空き容量を基に分配＞
蓄電池指令値（i）＝超過電力×蓄電池空き容量（i）/蓄電池空き容量合計 …(8)
<Distribution based on storage capacity>
Battery command value (i) = excess power x storage capacity (i) / total storage capacity… (7)
<Distribution based on free storage capacity>
Storage battery command value (i) = excess power x storage battery free capacity (i) / total storage battery free capacity… (8)
ここで、i=1〜Nであり、Nは蓄電池の台数である。 Here, i = 1 to N, and N is the number of storage batteries.
ただし、式（７）、（８）を用いた計算では、出力が出力上限を超過することになる蓄電池３０１が存在した場合、蓄電池指令計算部２０４は、超過電力から当該蓄電池３０１の出力上限を減算し、当該蓄電池３０１を除いて再度、分配の計算を行う。そして、蓄電池指令計算部２０４は、出力が出力上限を超過する蓄電池３０１が無くなるまで繰り返す。これにより、蓄電池指令値を算出し、蓄電池指令記憶部１０６に登録する。なお、式（７）、（８）にて出力が出力上限を超過し、計算から除外された蓄電池３０１への指令値は蓄電池３０１の出力上限である。 However, in the calculation using Expressions (7) and (8), when there is a storage battery 301 whose output exceeds the output upper limit, the storage battery command calculation unit 204 calculates the output upper limit of the storage battery 301 from the excess power. Subtraction is performed, and distribution is calculated again except for the storage battery 301. Then, the storage battery command calculation unit 204 repeats until there is no storage battery 301 whose output exceeds the output upper limit. Thereby, the storage battery command value is calculated and registered in the storage battery command storage unit 106. In addition, the output exceeds the output upper limit in Expressions (7) and (8), and the command value to the storage battery 301 excluded from the calculation is the output upper limit of the storage battery 301.
一方、受電電力が契約電力を超過していない場合、蓄電池指令計算部２０４は、機器データ記憶部１０２の充放電効率定数データと、蓄電量スケジュールデータ記憶部１０４の蓄電量スケジュールデータと、蓄電池出力蓄電量記憶部１０５の蓄電量の実績データとに基づき、式（９）および（式１０）を用いて各蓄電池３０１への指令値を作成し、指令値データを蓄電池指令記憶部１０６に登録する。
＜充電時＞
指令値（i）
＝｛蓄電量スケジュール（i,t+1）−現在蓄電量（i）｝／充電効率（i,t） …(9)
＜放電時＞
蓄電池指令値（i）
＝｛現在蓄電量（i,t）−蓄電量スケジュール（i,t+1）｝×放電効率（i） …(10)
On the other hand, when the received power does not exceed the contract power, the storage battery command calculation unit 204, the charge / discharge efficiency constant data of the device data storage unit 102, the storage amount schedule data of the storage amount schedule data storage unit 104, and the storage battery output Based on the actual amount data stored in the storage amount storage unit 105, a command value for each storage battery 301 is created using equations (9) and (10), and the command value data is registered in the storage battery command storage unit 106. .
<When charging>
Command value (i)
= {Power storage amount schedule (i, t + 1) −Current storage amount (i)} / Charging efficiency (i, t) (9)
<During discharge>
Battery command value (i)
= {Current storage amount (i, t) −Storage amount schedule (i, t + 1)} × Discharge efficiency (i) (10)
ここで、i=1〜Nであり、Nは蓄電池台数でり、tは現在時刻である。 Here, i = 1 to N, N is the number of storage batteries, and t is the current time.
蓄電池指令送信部２０５は、蓄電池指令記憶部１０６に格納された各蓄電池３０１への指令データを収集し、各蓄電池３０１に指令を送信する（ステップＳ２０６）。 The storage battery command transmission unit 205 collects command data for each storage battery 301 stored in the storage battery command storage unit 106, and transmits the command to each storage battery 301 (step S206).
次に、本実施例による蓄電池運用管理方法による蓄電池３０１の運用の改善について説明する。 Next, the improvement of the operation of the storage battery 301 by the storage battery operation management method according to the present embodiment will be described.
図６は、本実施例の蓄電池運用管理方法で運用した場合の蓄電池３０１の蓄電量と従来の運用方法で運用した場合の蓄電量との比較に用いる定数データを示す表である。図７は、本実施例の蓄電池運用管理方法で運用した場合の蓄電池３０１の蓄電量と従来の運用方法で運用した場合の蓄電量との比較結果を示す表である。 FIG. 6 is a table showing constant data used for comparison between the storage amount of the storage battery 301 when operated by the storage battery operation management method of the present embodiment and the storage amount when operated by the conventional operation method. FIG. 7 is a table showing a comparison result between the storage amount of the storage battery 301 when operated by the storage battery operation management method of the present embodiment and the storage amount when operated by the conventional operation method.
図６に示すように、蓄電池Ａ、Ｂの２つの蓄電池３０１がある。蓄電池Ａは、出力上下限が３００［Ｗ］、−３００［Ｗ］であり、容量上限が１６２０［Ｗｈ］である。また、ここでは蓄電池Ａは、実際（真値）の充電効率が９０％であり放電効率が８９％であり、演算に用いる充電効率９０％であり放電効率が９０％であるとする。放電効率に誤差がある。蓄電池Ｂは、出力上下限が２００［Ｗ］、−２００［Ｗ］であり、容量上限が１０８０［Ｗｈ］である。また、ここでは蓄電池Ａは、実際（真値）の充電効率が９０％であり放電効率９１％であり、演算に用いる充電効率９０％であり放電効率が９０％であるとする。やはり放電効率に誤差がある。 As shown in FIG. 6, there are two storage batteries 301, storage batteries A and B. The storage battery A has output upper and lower limits of 300 [W] and -300 [W], and a capacity upper limit of 1620 [Wh]. Here, it is assumed that the storage battery A has an actual (true value) charging efficiency of 90% and a discharging efficiency of 89%, a charging efficiency of 90% used for calculation, and a discharging efficiency of 90%. There is an error in the discharge efficiency. The storage battery B has output upper and lower limits of 200 [W] and −200 [W], and a capacity upper limit of 1080 [Wh]. Here, it is assumed that the storage battery A has an actual (true value) charging efficiency of 90% and a discharging efficiency of 91%, a charging efficiency of 90% used for calculation, and a discharging efficiency of 90%. There is still an error in the discharge efficiency.
またここでは契約電力は１２００｛Ｗ｝とし、本実施例では契約電力の超過はないものとする。従来方法では、蓄電量の計画と実績の偏差が閾値を超えると蓄電量スケジュールの再計算を行うものとし、その閾値を蓄電容量の１０％とする。 Here, the contract power is 1200 {W}, and in this embodiment, the contract power is not exceeded. In the conventional method, when the deviation between the plan and the actual amount of power storage exceeds the threshold, the power storage schedule is recalculated, and the threshold is set to 10% of the power storage capacity.
上記条件により本実施例による蓄電池運用管理方法と従来方法とで蓄電池Ａ、Ｂを運用すると、図７に示すような運用結果となる。 When the storage batteries A and B are operated by the storage battery operation management method according to the present embodiment and the conventional method under the above conditions, an operation result as shown in FIG. 7 is obtained.
図７を参照すると、蓄電池Ａは途中で蓄電量が負の値となっている。これは計画の誤差により蓄電量が足りなくなってしまったことを意味する。また、蓄電池Ｂは蓄電量を使い切る計画であったが、１１．８７［Ｗｈ］だけ残っている。これは計画の誤差により使われない蓄電量が生じたことを意味する。 Referring to FIG. 7, the storage battery A has a negative charge amount in the middle. This means that the amount of power storage has become insufficient due to a plan error. Further, although the storage battery B was planned to use up the amount of stored electricity, only 11.87 [Wh] remains. This means that a storage amount that is not used due to a plan error has occurred.
一方、本実施例による蓄電池運用管理方法では、蓄電池Ａ、Ｂともに蓄電量を使い切りかつ不足も生じていないことが分かる。 On the other hand, in the storage battery operation management method according to the present embodiment, it can be seen that both the storage batteries A and B use up the storage amount and no shortage occurs.
よって、本計算結果より、本実施例により蓄電池Ａ、Ｂを最大容量まで無駄なく使い切る無駄のない運用を実現していることがわかる。 Therefore, it can be seen from this calculation result that the present embodiment realizes a wasteless operation of using the storage batteries A and B to the maximum capacity without waste.
以上、本実施形態および実施例について説明したが、本発明がこれらに限定されることはない。当業者は、本発明の要旨を逸脱することなしに、他の様々な態様で本発明を実施することができる。 While the present embodiment and examples have been described above, the present invention is not limited to these. Those skilled in the art can implement the present invention in various other modes without departing from the gist of the present invention.
本実施形態および本実施例では、図３に示したような単体の計算機で蓄電池運用管理装置１０を構成する例を示したが、複数の計算機に機能が分割配置されてもよい。 In the present embodiment and this example, an example in which the storage battery operation management apparatus 10 is configured by a single computer as shown in FIG. 3 is shown, but the functions may be divided and arranged in a plurality of computers.
本実施形態および実施例の蓄電池運用管理装置１０は、プロセッサ１がソフトウェアプログラムを実行することにより実現される例を示したが、本発明がこれに限定されることはない。他の例として、図１あるいは図４に示した各部がハードウェアにより実現される構成も可能である。 Although the storage battery operation management apparatus 10 of this embodiment and the example showed the example implement | achieved when the processor 1 runs a software program, this invention is not limited to this. As another example, a configuration in which each unit illustrated in FIG. 1 or 4 is realized by hardware is also possible.
１…プロセッサ、１０…蓄電池運用管理装置、１００…予想データ記憶部、１０１…実績データ記憶部、１０２…機器データ記憶部、１０３…契約電力記憶部、１０４…蓄電量スケジュールデータ記憶部、１０５…蓄電池出力蓄電量記憶部、１０６…蓄電池指令記憶部、２…記憶装置、２００…予想データ収集部、２０１…実績データ収集部、２０２…蓄電量スケジュール計算部、２０３…蓄電量データ収集部、２０４…蓄電池指令計算部、２０５…蓄電池指令送信部、３…外部インタフェース、３０１…蓄電池、３０２…負荷情報源、３０３…気象情報源、３０４…電気機器、３０５…電力系統、４…入出力装置、９０…充電効率、９１…放電効率
DESCRIPTION OF SYMBOLS 1 ... Processor, 10 ... Storage battery operation management apparatus, 100 ... Expected data storage part, 101 ... Performance data storage part, 102 ... Equipment data storage part, 103 ... Contract electric power storage part, 104 ... Electricity storage amount schedule data storage part, 105 ... Storage battery output storage amount storage unit 106 ... Storage battery command storage unit 2 ... Storage device 200 ... Predicted data collection unit 201 ... Result data collection unit 202 ... Storage amount schedule calculation unit 203 ... Storage amount data collection unit 204 DESCRIPTION OF SYMBOLS ... Storage battery command calculation part, 205 ... Storage battery command transmission part, 3 ... External interface, 301 ... Storage battery, 302 ... Load information source, 303 ... Weather information source, 304 ... Electric equipment, 305 ... Electric power system, 4 ... Input / output device, 90 ... charge efficiency, 91 ... discharge efficiency
Claims (12)
将来の前記蓄電池の蓄電量の推移の予定を示す蓄電量スケジュールを作成する蓄電量スケジュール計算部と、
前記蓄電池の蓄電量の実績を示す蓄電量実績値を収集する蓄電池データ収集部と、
現在の蓄電量実績値を前記蓄電量スケジュールと一致させるように前記蓄電池への充放電の指令値を決定する蓄電池指令計算部と、を有する蓄電池運用管理装置。 A storage battery operation management device for managing the operation of a storage battery capable of controlling charge and discharge.
A storage amount schedule calculation unit for creating a storage amount schedule indicating a schedule of the transition of the storage amount of the storage battery in the future;
A storage battery data collection unit that collects a storage amount actual value indicating the storage amount of the storage battery; and
A storage battery operation management apparatus comprising: a storage battery command calculation unit that determines a charge / discharge command value for the storage battery so that a current storage amount actual value matches the storage amount schedule.
将来の予想される気温と過去における気温の実績と過去における負荷の実績とに基づき将来の負荷を予測し、
電気料金を抑えて前記将来の負荷を賄うように、将来の受電電力および前記蓄電池の充放電を遷移させる前記蓄電量スケジュールを作成する、
請求項１に記載の蓄電池運用管理装置。 The storage amount schedule calculation unit
Forecast future loads based on future expected temperatures, past temperature results and past load results,
Create the storage amount schedule for transitioning the future received power and charging / discharging of the storage battery so as to cover the future load while suppressing the electricity bill,
The storage battery operation management apparatus according to claim 1.
前記蓄電池指令計算部は、前記将来の受電電力が契約電力を超過する場合、前記受電電力から前記契約電力を減算した超過電力を、前記蓄電池のそれぞれに蓄電容量に応じて分配するように、前記各蓄電池への充放電の指令値を決定する、
請求項２に記載の蓄電池運用管理装置。 There are a plurality of the storage batteries,
The storage battery command calculation unit, when the future received power exceeds contract power, to distribute the excess power obtained by subtracting the contract power from the received power to each of the storage batteries according to the storage capacity, Determine the charge / discharge command value for each storage battery,
The storage battery operation management apparatus according to claim 2.
前記蓄電池指令計算部は、前記将来の受電電力が契約電力を超過する場合、前記受電電力から前記契約電力を減算した超過電力を、前記蓄電池のそれぞれに蓄電池空き容量に応じて分配するように、前記各蓄電池への充放電の指令値を決定する、
請求項２に記載の蓄電池運用管理装置。 There are a plurality of the storage batteries,
When the future received power exceeds contract power, the storage battery command calculation unit distributes the excess power obtained by subtracting the contract power from the received power to each of the storage batteries according to the storage battery free capacity, Determine a charge / discharge command value for each of the storage batteries,
The storage battery operation management apparatus according to claim 2.
前記蓄電量スケジュール計算部は、前記蓄電池の出力を前記出力下限以上前記出力上限以下の範囲とし、前記蓄電池の蓄電量を前記蓄電量下限以上前記蓄電量上限以下の範囲とするように、前記将来の受電電力および前記蓄電池の充放電を遷移させる前記蓄電量スケジュールを算出する、
請求項３または４に記載の蓄電池運用管理装置。 The output upper limit and output lower limit of the storage battery, and the storage amount upper limit and storage amount lower limit of the storage battery are predetermined,
The storage amount schedule calculation unit sets the output of the storage battery in the range not less than the output lower limit and not more than the output upper limit, and sets the storage amount of the storage battery in the range not less than the storage amount lower limit and not more than the storage amount upper limit. Calculating the storage amount schedule for transitioning the received power of the storage battery and charging / discharging of the storage battery
The storage battery operation management apparatus according to claim 3 or 4.
請求項２に記載の蓄電池運用管理装置。 The storage amount schedule calculation unit calculates the load of the past day having a record of the highest temperature with the smallest deviation from the predicted highest temperature of the future day to be predicted as the load predicted to be the future date. To
The storage battery operation management apparatus according to claim 2.
蓄電量スケジュール計算手段が、将来の前記蓄電池の蓄電量の推移の予定を示す蓄電量スケジュールを作成し、
蓄電池データ収集手段が、前記蓄電池の蓄電量の実績を示す蓄電量実績値を収集し、
蓄電池指令計算手段が、現在の蓄電量実績値を前記蓄電量スケジュールと一致させるように前記蓄電池への充放電の指令値を決定する、蓄電池運用管理方法。 A storage battery operation management method for managing the operation of a storage battery capable of controlling charge / discharge.
The storage amount schedule calculation means creates a storage amount schedule indicating the future transition of the storage amount of the storage battery,
The storage battery data collection means collects the storage amount actual value indicating the storage amount actual value of the storage battery,
A storage battery operation management method in which a storage battery command calculation means determines a charge / discharge command value for the storage battery so that a current storage amount actual value matches the storage amount schedule.
将来の予想される気温と過去における気温の実績と過去における負荷の実績とに基づき将来の負荷を予測し、
電気料金を抑えて前記将来の負荷を賄うように、将来の受電電力および前記蓄電池の充放電を遷移させる前記蓄電量スケジュールを作成する、
請求項７に記載の蓄電池運用管理方法。 The storage amount schedule calculation means includes:
Forecast future loads based on future expected temperatures, past temperature results and past load results,
Create the storage amount schedule for transitioning the future received power and charging / discharging of the storage battery so as to cover the future load while suppressing the electricity bill,
The storage battery operation management method according to claim 7.
前記蓄電池指令計算手段は、前記将来の受電電力が前記契約電力を超過する場合、前記受電電力から契約電力を減算した超過電力を、前記蓄電池のそれぞれに蓄電容量に応じて分配するように、前記各蓄電池への充放電の指令値を決定する、
請求項８に記載の蓄電池運用管理方法。 There are a plurality of the storage batteries,
When the future received power exceeds the contract power, the storage battery command calculation means distributes the excess power obtained by subtracting the contract power from the received power to each of the storage batteries according to the storage capacity. Determine the charge / discharge command value for each storage battery,
The storage battery operation management method according to claim 8.
前記蓄電池指令計算手段は、前記将来の受電電力が前記契約電力を超過する場合、前記受電電力から契約電力を減算した超過電力を、前記蓄電池のそれぞれに蓄電池空き容量に応じて分配するように、前記各蓄電池への充放電の指令値を決定する、
請求項８に記載の蓄電池運用管理方法。 There are a plurality of the storage batteries,
When the future received power exceeds the contract power, the storage battery command calculation means distributes the excess power obtained by subtracting the contract power from the received power to each of the storage batteries according to the storage battery free capacity, Determine a charge / discharge command value for each of the storage batteries,
The storage battery operation management method according to claim 8.
前記蓄電量スケジュール計算手段は、前記蓄電池の出力を前記出力下限以上前記出力上限以下の範囲とし、前記蓄電池の蓄電量を前記蓄電量下限以上前記蓄電量上限以下の範囲とするように、前記将来の受電電力および前記蓄電池の充放電を遷移させる前記蓄電量スケジュールを算出する、
請求項９または１０に記載の蓄電池運用管理方法。 The output upper limit and output lower limit of the storage battery, and the storage amount upper limit and storage amount lower limit of the storage battery are predetermined,
The storage amount schedule calculation means sets the output of the storage battery in the range not less than the output lower limit and not more than the output upper limit, and sets the storage amount of the storage battery in the range not less than the storage amount lower limit and not more than the upper limit of storage amount. Calculating the storage amount schedule for transitioning the received power of the storage battery and charging / discharging of the storage battery
The storage battery operation management method according to claim 9 or 10.
請求項８に記載の蓄電池運用管理方法。
The storage amount schedule calculation means calculates the load of the past day having the record of the highest temperature having the smallest deviation from the predicted highest temperature of the future day for which the load is predicted as the predicted load of the future date. To
The storage battery operation management method according to claim 8.
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