Method for operating a fuel cell system and fuel cell system

Abstract

The invention relates to a method for operating a fuel cell system, in particular a high-temperature fuel cell system, wherein, in at least one method step of the method, an oxygen-containing fluid is conveyed through at least one fuel cell unit (14a; 14b) of the fuel cell system for reaction with a fuel, wherein a flow parameter of the oxygen-containing fluid is adjusted according to a power balance of the fuel cell system. According to the invention, in at least one method step of the method, the power balance at a load change (34a; 34b) of the fuel cell system is partially replaced by an operating characteristic value of the fuel cell system determined in a stationary state of the fuel cell system.

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