Method and an apparatus, a controller, a system, and a program product for limiting current

Abstract

A method and apparatus, a controller, a fuel cell system, and a program product for limiting current are disclosed. The method includes (i) determining the power of a hydrogen circulating pump in a fuel cell system, (ii) determining a current limiting adjustment parameter based on the power of the hydrogen circulating pump, wherein the current limiting adjustment parameter is inversely proportional to the power of the hydrogen circulating pump, and (iii) adjusting a current limiting value of a DC-DC converter in the fuel cell system according to the determined current limiting adjustment parameter, wherein the current limiting value is directly proportional to the current limiting adjustment parameter. The method uses the power of the hydrogen circulating pump to judge whether the fuel cell system is flooded, thereby adjusting the current limiting value of the DC-DC converter to maintain the normal operation of the fuel cell system when hydrogen is insufficient.

Dependencies are inferred from the claim text.