FUEL CELL DEVICE FOR SECURING LIABILITY OF OPERATING PERFORMANCE AND THE METHOD FOR CONTROLLING THE SAME

摘要

A fuel cell device is provided to make successive operation possible, to form a optimal power generation state by maintaining the optimized operation state, and to secure an optimal drive condition of the catalyst of a fuel cell stack. A fuel cell device(10) comprises a fuel supply part(100) equipped with a reformer; an air supply part(200) supplying outer air; a fuel cell stack part(300) producing electricity through oxidation of hydrogen and reaction of oxygen; a fuel cell cooling part(400) equipped with coolant lines cooling the fuel cell stack part; a sensor part(500) containing a cooling water temperature sensor, an exhaust temperature sensor, a cooling water flux system and a fuel flow meter; a mode control operation part equipped with a fuel control valve part controlling the inflow of reformed fuel to the fuel cell stack part; a storage part equipped with fuel flux data for preventing performance degradation due to overheat; and a control part(600) controlling the fuel control valve part based on the sensing signal of the sensor unit.