| 摘要 |
A fuel cell system (10) comprising: an anode gas circulation path (46) comprising an anode gas supplying path (23) and an anode gas ejection path (35); a fuel cell (11); a blowdown valve (52); and a control unit (45) controlling the blowdown valve, wherein the control unit comprises a freeze estimation unit estimating whether the anode gas circulation path is likely to freeze, a pressure reduction unit reducing a pressure of the anode gas circulation path, and a pressure condition confirmation unit confirming a pressure of the anode gas circulation path; and when the freeze estimation unit estimates a freezing when the fuel cell stops generating electricity, the blowdown valve is closed, a pressure of the anode gas circulation path is reduced by the pressure reduction unit, and, the blowdown valve is opened after the pressure condition confirmation unit confirms that a pressure of the anode gas circulation path reaches a predetermined pressure less than or equal to an atmospheric pressure, thereby moving a moisture inside the anode gas circulation path in a direction towards the fuel cell. |
