| 摘要 |
PROBLEM TO BE SOLVED: To achieve a storage battery system etc. capable of soft start with a reduced voltage fluctuation accompanying a switchover when continuously supplying power after a consumed storage battery unit is switched to another storage battery unit.SOLUTION: The storage battery system includes a plurality of storage battery units selectively connected in parallel, as a compensation power supply for supplying power to a load at blackout, by the changeover of a switch. The storage battery system further includes, on the output side of a second storage battery unit, a storage battery voltage soft start unit for reducing an abrupt voltage fluctuation from the discharge completion voltage of a first storage battery unit to the discharge start voltage of the second storage battery unit, at the changeover of the switch from the first storage battery unit to the second storage battery unit. |
