CONTROLLING THE REQUESTED POWER OUTPUT OF A FUEL CELL SYSTEM

摘要

A fuel cell system of a type that uses an accessory to supply fuel gas and oxidant gas to a fuel cell to generate electric power is disclosed. The fuel cell system includes a load parameter detector that detects a load parameter of the accessory. An actual accessory power computing device computes the electric power actually consumed by the accessory based on the detected load parameter. A steady accessory power computing device computes a steady accessory electric power consumption by the accessory that would be needed for supplying the fuel cell with gas to generate an amount of required electric power from the fuel cell system based on the steady electric power consumption characteristics of the accessory. An accessory power correcting device computes an electric power correction quantity such that the correction quantity may be combined with the steady accessory power to approach the actual accessory electric power consumption and the accessory power correcting device corrects the steady accessory electric power consumption based on the electric power correction quantity. A power generation controller controls the power generation of the fuel cell system based upon the required electric power to be generated by the fuel cell system and upon the computed steady accessory electric power consumption corrected by the accessory power correcting device.