Process for regulating a fuel cell system comprises rinsing a reformer with air during the starting up and the shutting down process; and feeding the synthesis gas and/or waste gas partially to the next fuel cell. The reformer produces a hydrogen-rich synt...

The fuel cell system is controlled solely by switching individual cells or stacks on and off.. Current density matching present demand may be controlled in addition. In this way, electrical and/or thermal loading of the fuel cell system is controlled. An I...