Fuel cell system operating method for use in motor vehicle, involves initially starting supply of di-oxygen, and determining setting and retaining process of stand-by voltage level at direct current network

摘要

The method involves setting an oxygen supply (8) on a cathode inlet (15) while controlling an active supply of fuel cell, and retaining a fuel cell stack (1) at direct current network (12) to be set. Voltage of the direct current network is connected to the fuel cell stack on a predefined standby voltage level. A fuel cell system is set to a stand-by mode in a normal operation, where the supply of di-oxygen is initially started. Setting and retaining process of the stand-by voltage level is determined at another direct current network. An independent claim is also included for a fuel cell system comprising a fuel cell stack.