| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system using the maximum amount of fuel gas supplied to a fuel cell for power generation to increase safety without discharging it to the outside and simplifying the structure. <P>SOLUTION: The system includes the fuel cell 20 generating power from hydrogen gas supplied from a fuel supply part 10, a DC-DC converter 31 converting an output voltage V<SB>FC</SB>from the fuel cell 20 to a predetermined voltage value to be output, and a voltage control part for controlling the output voltage V<SB>FC</SB>to a preset setting voltage. When (A) is the maximum hydrogen gas amount per predetermined time which can be generated from the fuel supply part 10 and (B) is the output current when (A) is supplied to the fuel cell 20, the setting voltage is set to a voltage lower than the output voltage corresponding to (B) obtained from the output current (I)-output voltage (V) characteristic of the fuel cell 20. <P>COPYRIGHT: (C)2010,JPO&INPIT |
