| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage battery system which is capable of starting a fuel cell power generation system in autonomous operation if a commercial system is down, and attains reduction of cost of an entire power conditioner system including a plurality of power generation systems.SOLUTION: A storage battery system 4 comprises a system opening/closing switch 41, an AC-DC converter 42, an AC-DC converter 47, a DC-DC converter 50, a storage battery 54 and a DC-AC inverter 44. If a commercial system is down, the system opening/closing switch 41 is changed over to a non-connection state and the DC-AC inverter 44 outputs converted AC power to an input terminal 7, such that a fuel cell power generation system 2 can be activated in autonomous operation.SELECTED DRAWING: Figure 1 |
