| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device and method of controlling a fuel cell system, wherein a fuel gas pressure can be reduced rapidly by changing current value when the electric power is taken out from the fuel cell stack. <P>SOLUTION: This is provided with a detection part 31 of required power generation amount that detects a power generation amount required for the fuel cell stack that generates electric power by using a fuel gas supplied to the fuel electrode and an oxidizer gas supplied to the oxidizer electrode, a pressure control calculation part 32 that calculates the pressure values of the fuel gas and the oxidizer gas necessary for the fuel cell stack to generate electric power amount which the detection part 31 of required power generation amount detects, an oxidizer gas pressure control part 33 that controls the pressure of the oxidizer gas based on the pressure value of the oxidizer gas calculated by the pressure control operation part 32, and an extraction current control part 34 that decides the amount of the current to be extracted in accordance with the pressure value of the oxidizer gas or the varying amount of the pressure value of the oxidizer gas calculated by the pressure control operation part 32 when the oxidizer electrode pressure control part 33 reduces the pressure of the oxidizer gas. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
