摘要 |
A fuel cell system (10) includes: a fuel cell (1); a hydrogen supply device (2) for supplying a hydrogen gas to the fuel cell (1); an anode off-gas passage (22) through which an anode off-gas discharged from the anode side of the fuel cell (1) passes; a hydrogen concentration sensor (3) that measures the concentration of hydrogen in the anode off-gas; and a sensor correction device (4) that, after a predetermined time has elapsed since the hydrogen gas supply to the fuel cell by the hydrogen supply device (2) was stopped, measures the hydrogen concentration using the hydrogen concentration sensor (3), and corrects a measurement value from the hydrogen concentration sensor (3) based on the measured hydrogen concentration. |