METHOD OF CONTROLLING FUEL CELL SYSTEM

The invention relates to a method of controlling a fuel cell system. A method for controlling a fuel cell system according to the present invention is a method for controlling a fuel cell system, the method comprising: a measurement process in which a power generation voltage at a predetermined current density of a fuel cell cell is measured; a first calculation process in which the poisoning rate of the electrode catalyst at the power generation voltage measured in the measurement process is calculated from a predetermined relationship between the poisoning rate of the electrode catalyst of the fuel cell cell and the power generation voltage at a predetermined current density; and a second calculation process in which the generation rate of hydrogen peroxide at the poisoning rate of the electrode catalyst calculated in the first calculation process is calculated from a predetermined relationship between the generation rate of hydrogen peroxide of the fuel cell cells and the poisoning rate of the electrode ca