| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a portable power supply system enabling smooth operation even if a load changes suddenly and dramatically. <P>SOLUTION: The portable power supply system has a fuel cell 2 and a rechargeable battery 8 connected in parallel, and a control unit 11. The control unit 11 feeds power to loads 12, 13 by power discharged from the rechargeable battery 8 from when the system is started to when the fuel cell 2 can feed power. When the fuel cell 2 can supply power, the control unit 11 increases the output of the fuel cell 2, and obtains the remaining capacity of the rechargeable battery 2 in advance when the output of the fuel cell 2 reaches a load power by the increase output. When the remaining capacity is larger than a prescribed value, the control unit 11 sets the upper limit of the output of the fuel cell 2 to be increased to a value smaller than the load power. When the remaining capacity is smaller than the prescribed value, the control unit 11 sets the upper limit of the output of the fuel cell 2 to be increased to a value larger than the load power. <P>COPYRIGHT: (C)2010,JPO&INPIT |
