| 摘要 |
A fuel cell stopping procedure start judgment unit (101) judges a start of procedures for stopping a fuel cell. A fuel electrode gas controlling unit (102) controls fuel gas at a fuel electrode toward a stopping state based on the judgment of the start of the stopping procedures. A gas pressure detecting unit (103) detects gas pressure at the fuel electrode. An oxidant electrode gas controlling unit (104) controls gas pressure at an oxidant electrode such that a difference between the gas pressure at the oxidant electrode and the gas pressure at the fuel electrode falls within a maximum value of an allowable pressure difference based on a result of the gas detection and an output from the fuel cell stopping procedure start judgment unit (101), and also controls the gas pressure at the oxidant electrode to atmospheric pressure after the gas pressure detected by the gas pressure detecting unit reaches a sum of the atmospheric pressure and the maximum value of the allowable pressure difference. |
