| 摘要 |
PURPOSE:To reduce the cost of a power supply device utilizing a fuel cell, and to improve durability by rationally enhancing constitution for outputting the output AC power of a DC-AC converter to an external load device. CONSTITUTION:An external load device 13 is connected to a DC-AC converter 11 converting the output DC power of a fuel cell 1 into AC power, and a switching means S1 switching the connection of the DC-AC converter 11 and the external load device 13 is installed. A control means 100 controlling the DC-AC converter 11 so that output AC voltage is lowered to a set minimum value on the basis of an output command outputting the output AC power of the DC-AC converter 11 to the external load device 13, changing over the switching means S1 to a closed state and controlling the DC-AC converter 11 so as to gradually increase output AC voltage is mounted. |
