| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell system which enables efficient power generation while keeping a moisture state inside the fuel cell optimal. SOLUTION: A moistening degree of oxygen supplied to the fuel cell 10 is controlled based on a demanded electric power amount Pr to the fuel cell 10 and an internal resistance Rp of the fuel cell 10 calculated from an output voltage value and output current value which have been detected with a voltage current detection means 13. When a ratio of the internal resistance Rp to an internal resistance theoretical value Rr of the fuel cell 10 exceeds a predetermined value, since it can be presumed that moisture is insufficient, the moistening degree of the oxygen supplied to the fuel cell 10 is increased in the predetermined amount. |
