POWER STORAGE BATTERY CONTROL DEVICE AND POWER STORAGE BATTERY CONTROL PROGRAM

To establish logic for estimating planned power by predicting changes in sunshine hours and load fluctuations when power received from a grid, power generated by renewable energy, and power discharged from storage batteries are used together, and achieve both peak cut collateral and avoidance of selling power to a commercial power system.SOLUTION: A power storage battery output selection unit 78 receives a power storage amount upper limit value Smax from a power storage amount upper limit calculation unit 70B, receives a power storage amount lower limit value Smin from a power storage amount lower limit calculation unit 70A, receives a power storage battery discharge upper limit X'out from a power storage battery discharge upper limit determination unit 84, receives a power storage battery discharge lower limit X'in from a power storage battery charge upper limit determination unit 86, and reads the upper limit power storage margin Uhigh and a lower limit power storage margin Ulow from a set value storage unit 72. On the basis of a determination formula-power storage battery output table 78T, a range to which the input current storage amount S belongs is determined, and the power storage battery output X is selected.SELECTED DRAWING: Figure 4 【課題】系統から受ける電力、再生可能エネルギー発電による電力、蓄電池から放電された電力を併用する場合に、日照時間や負荷の変動の推移の予測による計画電力の推定ロジックを確立し、ピークカットの担保と商用電力系統への売電回避を両立する。【解決手段】蓄電池出力選択部７８には、蓄電量上限値演算部７０Ｂから蓄電量上限値Ｓmaxが入力され、蓄電量下限値演算部７０Ａから蓄電量下限値Ｓminが入力され、蓄電池放電上限決定部８４から蓄電池放電上限Ｘ'outが入力され、蓄電池充電上限決定部８６から蓄電池放電下限Ｘ'inが入力され、設定値記憶部７２から上限蓄電余裕幅Ｕhigh及び下限蓄電余裕幅Ｕlowが読み出される。判定式−蓄電池出力テーブル７８Ｔに基づき、入力される現在蓄電量Ｓが、何れの範囲に属するかを判定し、蓄電池出力Ｘを選択する。【選択図】図４