| 摘要 |
<P>PROBLEM TO BE SOLVED: To stably generate power by suppressing unnecessary heat generation in the power generating part of a fuel cell power supply system by a simple method. <P>SOLUTION: The fuel cell power supply system includes: a fuel cell stack; a fuel tank to store a fuel solution having prescribed fuel concentration; a fuel supply pump for supplying the fuel solution to the fuel cell stack from the fuel tank; an air supply means for supplying air to the fuel cell stack; at least one of a temperature detecting element for detecting the temperature of the fuel cell stack and a voltage detecting element for detecting the output voltage of the fuel cell stack; a means for obtaining the fuel concentration of the fuel solution from the detected temperature and/or voltage; and a control device for controlling the fuel pump and/or the air supply means by reference to the fuel concentration found. In addition, the operation method of the fuel cell power supply system is disclosed. <P>COPYRIGHT: (C)2009,JPO&INPIT |
