Control method for a fuel cell system and fuel cell system

摘要

Control involves generating a direct current (DC) voltage, and converting the DC voltage to an alternating current (AC) voltage (U) by a converter for an AC mains power supply. The AC voltage is controlled by a control device, and a nominal voltage (U n) of the supply is determined. The AC voltage is produced in the direction of the nominal voltage based on the value of the AC voltage, when the AC voltage is less than the nominal voltage. The production of the AC voltage is carried out till the nominal voltage of the supply or a threshold value for the AC voltage is reached. An independent claim is also included for a fuel cell system with a control device.