DEVICE AND METHOD FOR VOLTAGE CONTROL OF FUEL CELL

摘要

PURPOSE: Provided is a device for voltage control of fuel cell which can prevent unnecessary waste of fuel and degradation of electrical product by controlling a voltage in conformity with consumption voltage, and a method for voltage control in the fuel cell. CONSTITUTION: The device consists of a stack(13) which comprises an electrolyte, a cathode and an anode and generates electricity and heat by electrochemical reaction of hydrogen(supplied to the anode) and oxygen(supplied to the cathode); a voltage sensor(16) for detecting the voltage of electricity currently produced in the stack(13); a control valve(17) for controlling a fuel amount; and a controller(19) which estimates correct fuel supply based on current consumption of fuel transmitted from the sensor(16) and orders the switching of the control valve(17).