| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell control system using a fuel cell and a secondary cell, controlling the amount of power stored in the secondary cell to be at or above a reference value at all times, permitting stable assistance by the secondary cell, and controlling a change in the flow of fuel to a reformer to be within the capability of the reformer, with the reformer supplying fuel cell gas to the fuel cell. SOLUTION: The fuel cell control system is provided with a secondary cell stored power control device for detecting the amount of the power stored in the secondary cell to determine the target output value of the fuel cell which sets the amount of the stored power at or above a reference value, and a fuel cell output control device for detecting the output of the fuel cell and controlling the flow of the fuel to the reformer so that the detected value becomes the target output value of the fuel cell. The fuel cell output based on the flow of the fuel controlled by the fuel cell output control device is imparted to the secondary cell via a DC/DC converter to control the amount of the stored power to be at or above the reference value at all times. Also, the fuel cell output control device is provided with a rate limiter for limiting the flow of the fuel to the reformer so that its time rate of change does not exceed the response capability of the reformer, to thereby prevent an extra supply of fuel. |
