| 摘要 |
A fuel cell system comprises a fuel cell stack 2 with a plurality of cells each having a ventilation path therethrough. A main compressor 7 is configured to direct fluid through the ventilation paths of the plurality of cells and an auxiliary compressor 8 is also configured to direct fluid through the ventilation paths of the plurality of cells. The auxiliary compressor is of reduced power capability compared to the main compressor. The auxiliary compressor is operated without the main compressor upon start up of the fuel cell and the main compressor is switched on after start up when the fuel cell stack power output exceeds a predetermined threshold. The auxiliary compressor may be shut down when the main compressor has been switched on. |
