| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system that is suitable for changing an operational operating point of a fuel cell during low-efficiency power generation. <P>SOLUTION: The fuel cell system 100 includes a fuel cell 40 for generating power by reaction gas supply, an air compressor 72 for adjusting a flow rate of reaction gas supplied to the fuel cell 40, and a controller 80 that controls an output current I<SB>fc</SB>of the fuel cell 40 by controlling the air compressor 72 in order to change an operational operating point of the fuel cell 40. When changing an operational operating point of the fuel cell 40 in a low-efficiency power-generation region whose power loss is large compared with that at normal power generation, the controller 80 sets a limitation to at least either of a current change amount ΔI and a voltage change amount ΔV per unit time. <P>COPYRIGHT: (C)2009,JPO&INPIT |
