METHOD FOR OPERATING A FUEL CELL SYSTEM, AND A CONTROL DEVICE

The invention relates to a method for operating a fuel cell system (), hydrogen from a tank () and recirculated hydrogen from a recirculation circuit () being supplied to at least one fuel cell () via a fuel line () as anode gas, and the anode gas being removed from the recirculation circuit () by intermittently opening a purge valve (), characterized in that the following steps are carried out: The invention further relates to a control device for carrying out the method or individual method steps.