| 摘要 |
This state determination device for a fuel cell that receives a supply of anode gas and cathode gas and generates power is provided with an internal impedance measuring means which measures the internal impedance of said fuel cell on the basis of an AC signal of a prescribed frequency outputted from the fuel cell, and an anode reaction resistance estimation calculation means which calculates an estimated reaction resistance value of the anode electrode of the aforementioned fuel cell on the basis of the measured internal impedance value, wherein the aforementioned prescribed frequency is selected such that the difference between the estimated reaction resistance value of the anode electrode in a hydrogen-starved state and the estimated reaction resistance value of the anode electrode in an oxygen-starved state is greater than or equal to a prescribed value. |
