METHOD FOR CONTROLLING AMOUNT OF CATHODE GAS SUPPLY TO FUEL CELL SYSTEM AND FUEL CELL, AND METHOD FOR MEASURING AMOUNT OF CATHODE GAS SUPPLIED TO FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide a technique with which the amount of reactant gas supply to a fuel cell can be appropriately controlled.SOLUTION: A fuel cell system 100 comprises an air flow meter 33 which measures the amount of cathode gas supply and a hydrogen circulation pump 64 for circulating anode exhaust gas to re-supply the anode exhaust gas to a fuel cell 10. A control unit 20 orders the fuel cell 10 to carry out a predetermined reference operation and measures power consumption of the hydrogen circulation pump 64, and, based on a correlation between power consumption of the hydrogen circulation pump 64 and the amount of cathode gas supply, obtains the amount of cathode gas supply with respect to a measured value of the power consumption of the hydrogen circulation pump 64. The control unit 20 then calculates, as a measurement error, a difference between the amount of cathode gas supply and a value measured by the air flow meter 33 and calculates a correction value for compensating for the measurement error. The control unit 20 controls the amount of cathode gas supply based on the measured value from the air flow meter 33 which has been corrected using the correction value.