FUEL CELL POWER GENERATION SYSTEM

It has heretofore been practiced upon the occurrence of abnormalities on the equipment to make tentative conditioned operation disregarding abnormalities on the assumption that the abnormalities shall be coped with by servicemen. Thus, troubles having insignificant contents of abnormality could not be readily coped with by a simple method. There are provided a fuel cell 21, a fuel gas supplying unit 22 , an oxidizer gas supplying unit 34, a state detecting unit 42 of detecting the temperature of the fuel gas supplying unit 22, an operation controlling unit 47 of detecting abnormalities of predetermined functions performed by the fuel gas supplying unit 22 utilizing the results detected by the state detecting unit 42 and performing operation control in an operation mode corresponding to the contents of abnormalities, and an operation mode switching unit 44 of switching to an operation mode corresponding to the contents of abnormalities.