| abstract |
A fuel cell system capable of reaching a target output immediately upon startup of a fuel cell is provided. SOLUTION: A stack 11, an air blower 12 provided on the upstream side of a cathode 11a of the stack 11 for supplying air to the cathode 11a, and provided between the air blower 12 and the cathode 11a. Combustion burner 21 that heats the output air, and at the time of activation of the stack 11, the air heated by the combustion burner 21 is supplied to the cathode 11a to control the temperature of the stack 11, and the stack 11 can generate power. After reaching the temperature, the oxygen excess rate of the air output from the combustion burner 21 is set lower than the oxygen excess rate at the target output of the stack until the stack 11 reaches a predetermined target output or target temperature. At least one of control for controlling the output voltage of the stack 11 within a predetermined range, and heating control by the combustion burner 21 Please is carried out. [Selection] Figure 1 |