| 摘要 |
Disclosed is a system and method for operating a fuel cell system, which improves durability of a fuel cell stack by purging oxygen diffusing into an air electrode of the fuel cell stack while the fuel cell vehicle is parking. That is, the present invention provides a system and method for operating a fuel cell system, which prevents an interface between oxygen and hydrogen from forming at an anode by periodically supplying hydrogen to a cathode to purge oxygen when the oxygen concentration is greater than a predetermined level to prevent oxygen in the air from diffusing into the cathode while parking the fuel cell vehicle, thus preventing durability of a membrane electrode assembly of a fuel cell stack from deteriorating. |
