| 摘要 |
PURPOSE: An operation method for a fuel cell system is provided to increase gas dispersion by instantaneously increasing inner pressure of a stack, to release the reduction of service life of a stack, and to enable operation of a fuel system for a long term. CONSTITUTION: An operation method for a fuel cell system comprises the steps of: comparing an initial rated output power and measurement output of stack; when the measured output is reduced to the initial set value from initial rated output power, increasing the fuel supply amount of a fuel reformer from a initial set value to a set value; comparing an initial output reducing gradient and a present initial output reducing gradient; reducing an initial rated supply amount; when the initial output reducing gradient becomes the same as the present output reducing gradient, increasing the fuel supply amount to the set value; and a comparison step and a fuel supply amount returning and resupplying step. |
