| 摘要 |
A fuel cell system capable of appropriately regenerating a catalyst on a cathode side or an anode side is provided. A fuel cell system ( 1 ) includes regeneration processing means ( 21, 24, 33, 35 ) for performing a regeneration process that revives the catalyst in a fuel cell ( 2 ) from a state of lowered activity by controlling supply flow rates of fuel gas and oxidant gas supplied to the fuel cell ( 2 ), wherein the regeneration process for the catalyst on the cathode ( 12 ) side in the fuel cell ( 2 ) is performed by the regeneration processing means that decreases the flow rate of the oxidant gas to less than a steady-state requested rate in the relationship with the fuel gas to lower the cell voltage of the fuel cell ( 2 ) to a predetermined voltage. The regeneration process for the catalyst on the anode ( 13 ) side is similarly performed by the regeneration processing means that decreases the flow rate of the fuel gas to less than a steady-state requested rate in the relationship with the oxidant gas.
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