| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell control system which can reduce the deterioration of a MEA when a fuel cell is stopped, and to provide a stopping method of the fuel cell. <P>SOLUTION: A fuel cell control system 100 of a PBI-phosphoric acid fuel cell comprises: a fuel cell stack 1; a fuel reforming part 3; a combustion part 4 and a desulfurizing part 5. The fuel cell stack 1 comprises an electrolyte layer of a basic polymer impregnated in phosphoric acid, and an anode and a cathode which are arranged so as to sandwich the electrolyte layer. The fuel reforming part 3 reforms a fuel gas. The combustion part 4 burns a gas containing the fuel gas. The desulfurizing part 5 desulfurizes the fuel gas. The fuel cell control system 100 is stopped by the steps of: switching an oxidant gas to be supplied to the cathode in the fuel cell stack 1 to the fuel gas; and supplying the fuel gas that has been supplied to the anode in the fuel cell stack 1 through the fuel reforming part 3, to the fuel cell stack 1 without passing the fuel reforming part 3 by switching a supply passage. <P>COPYRIGHT: (C)2012,JPO&INPIT |
