OPERATION CONTROL DEVICE AND OPERATION CONTROL METHOD FOR FUEL CELL POWER PLANT

摘要

A fuel cell power plant stops anode gas supply to a fuel cell stack 1 by an anode gas supply mechanism 20 when an anode gas pressure in the fuel cell stack 1 reaches an upper limit pressure, and resumes supplying the anode gas by the anode gas supply mechanism 20 when the anode gas pressure in the fuel cell stack 1 lowers to a lower limit pressure. A sensor 52-54 detects if a hydrogen supply amount supplied to the fuel cell stack 1 satisfies a required amount to generate a target generated power, and a controller 51 corrects the lower limit pressure in an increasing direction when the hydrogen supply amount does not satisfy the required amount, thereby suppressing a generated power of the fuel cell stack 1 from reducing even when a flooding takes place in the fuel cell stack 1.