The present invention relates to improving the overall efficiency of a fuel cell system by reducing parasitic power consumption. A controller is programmed to decrease oxidant stoichiometry until oxidant starvation is detected or until oxidant stoichiometry is about one. When oxidant starvation is detected,...http://www.google.es/patents/US6461751?utm_source=gb-gplus-sharePatente US6461751 - Method and apparatus for operating a fuel cell
