| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel battery system for precisely estimating a moisture content inside a stack, in one equipped with a fuel battery stack made up by laminating a plurality of fuel battery cells. <P>SOLUTION: The fuel battery system equipped with the FC stack laminating and fastening a plurality of fuel battery cells generating power with supply of reaction gas includes: a step (Step 100) of reading an impedance of the FC stack 10, a step (Step 102) of reading a fastening load of the FC stack, a step (Step 104) of calculating a contact resistance based the fastening load, a step (Step 106) of calculating an inner resistance based on the impedance and the contact resistance, and a step (Step 108) of estimating a moisture content of the FC stack 10 based on the inner resistance. <P>COPYRIGHT: (C)2009,JPO&INPIT |
