FUEL CELL SYSTEM AND OPERATING METHOD FOR FUEL CELL SYSTEM

摘要

A fuel cell system (100) includes: a fuel cell (60) that generates power using an oxidant gas and a fuel gas; estimating means (10) for estimating an electric resistance of the fuel cell in accordance with a voltage and a current of the fuel cell; and temperature controlling means (10) for performing control to raise a temperature of the fuel cell when the electric resistance estimated by the estimating means exceeds a target electric resistance range and reduce the temperature of the fuel cell when the estimated electric resistance falls below the target electric resistance range.