| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply system, which can supply electric power from a storage battery to an AC bus bar, capable of improving power efficiency of the system even when a line is normal.SOLUTION: The power supply system S1 is configured so that a power conditioner 3 switches between an AC-DC conversion state and a DC-AC conversion state for operation; a storage battery 1 switches a charging state for charging electric power from a DC bus bar DC and a discharging state for discharging electric power to the DC bus bar DC for operation; and control means 4 switches a voltage source of the DC bus bar DC between the storage battery 1 and the power conditioner 3 for operation. |
