| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a solid oxide fuel cell system capable of precisely detecting deterioration of a cell stack due to a gas sealing property. <P>SOLUTION: A solid fuel cell system comprises a reformer 4 for reforming raw fuel gas; a cell stack 6 for generating power by oxidizing and reducing reformed fuel gas and an oxidation material; a fuel pump 28 for supplying the raw fuel gas to the reformer 4; and an oxidation material blower 20 for supplying the oxidation material to the cell stack. The system comprises first voltage detection means 52 for detecting a voltage between first portions of the cell stack 6, and second voltage detection means 54 for detecting a voltage between second portions thereof. During starting or deactivating the fuel cell system, the first voltage detection means detects a first open circuit voltage between the first portions, and a second voltage detection means detects a second open circuit voltage between the second portions, so as to determine a deterioration status of the cell stack based on the first and second open circuit voltages. <P>COPYRIGHT: (C)2013,JPO&INPIT |
