FUEL CELL SYSTEM AND DRIVING METHOD THE SAME

摘要

PURPOSE: A fuel cell system and a driving method thereof are provided to normally drive a fuel cell stack from the initial drive of the stack by supplying humidified fuel. CONSTITUTION: A driving method of a fuel cell system(100) comprises the following steps: successively supplying humidified fuel, and an oxidizer to a fuel cell stack(50); detecting a unit cell with the lowest temperature from plural unit cells inside the fuel cell stack; decreasing the humidifying temperature of the fuel lower than the lowest temperature of the unit cell; and supplying the oxidizer 30 seconds~2 minutes after supplying the fuel.