Patent ID: 7981559
Filing Date: 2011-07-19
Classification: H01M,Y02E

Abstract:
1. A fuel cell system that generates electricity using an electrochemical reaction of fuel gas and oxidizing gas, comprising: a fuel gas supply path that conducts the fuel gas from a fuel gas supply source to a fuel cell; a pressure adjustment valve provided on the fuel gas supply path that adjusts the supply gas pressure of the fuel gas; a degree of opening adjustment valve provided downstream of the pressure adjustment valve on the fuel gas supply path, the degree of opening thereof being set in accordance with a degree of opening adjustment signal; a control device that adjusts the degree of opening adjustment signal in accordance with an operating condition of the fuel cell system and controls the state quantity of fuel gas supplied to the fuel cell to a target quantity; and a measuring device that over time periodically measures a deviation in the degree of opening adjustment valve from an initial design value of the degree of opening adjustment valve, wherein the control device periodically adjusts the degree of opening adjustment signal in accordance with degree of opening characteristics of the degree of opening adjustment valve, the deviation, and an initial deviation.