POWER SUPPLY CONTROL SYSTEM, POWER SUPPLY CONTROL METHOD, AND POWER SUPPLY CONTROL PROGRAM

PROBLEM TO BE SOLVED: To intermittently operate a power supply target device, even when a blackout is prolonged.SOLUTION: A power supply control system which is connected to each of a commercial power supply E, a storage battery 2 and a radio base station BS, and controls power supply from the commercial power supply E or the storage battery 2 to the radio base station BS, comprises: a photovoltaic power generation system 32; and control means for controlling an operating state of the storage battery 2. The control means switches operating state of the storage battery 2 to a standby state when it is determined that it is necessary to switch the operating state of the storage battery 2 to the standby state based on the date and time that it is estimated that charging of the storage battery 2 by the photovoltaic power generation system 32 becomes possible at this date and time in a discharge state, and a discharge amount of the storage battery 2 per unit time in the standby state, and switches the operating state of the storage battery 2 to a charge state when it is determined that charge of the storage battery 2 by the photovoltaic power generation system 32 is possible in the standby state. 【課題】停電が長期化する場合においても、電力供給対象装置を断続的に稼働させる。【解決手段】商用電源Ｅ、蓄電池２及び無線基地局ＢＳのそれぞれに接続され、商用電源Ｅ又は蓄電池２から無線基地局ＢＳへの電力供給を制御する電力供給制御システムは、太陽光発電装置３２と、蓄電池２の動作状態を制御する制御手段と、を備え、制御手段は、放電状態において、太陽光発電装置３２による蓄電池２の充電が可能になると推定された推定日時と、スタンバイ状態における単位時間当たりの蓄電池２の放電量とに基づいて、蓄電池２の動作状態をスタンバイ状態に切り替える必要があると判定した場合には、蓄電池２の動作状態をスタンバイ状態に切り替え、スタンバイ状態において、太陽光発電装置３２による蓄電池２の充電が可能と判定した場合には、蓄電池２の動作状態を充電状態に切り替える。【選択図】図１