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|1. (WO2018131071) CONTROL METHOD FOR FUEL CELL SYSTEM, AND FUEL CELL SYSTEM|
|Applicants:||NISSAN MOTOR CO., LTD.
|Title:||CONTROL METHOD FOR FUEL CELL SYSTEM, AND FUEL CELL SYSTEM|
The invention provides a control method for a fuel cell system having a fuel cell of the solid oxide type, which receives supplies of an anode gas and a cathode gas to generate power. The control method for the fuel cell system includes an anode protection implementation determining process for determining whether to implement an anode protection process by applying a predetermined protection current to the fuel cell so as to suppress catalyst oxidation in the anode of the fuel cell. The anode protection implementation determining process acquires the fuel cell internal impedance for an anode response frequency at which the fuel cell anode reaction resistance may be detected, and determines, on the basis of the internal impedance at the anode response frequency, whether or not to implement the anode protection process.