FUEL CELL SYSTEM

摘要

[Issue] The present invention provides a fuel cell system which makes it possible to improve the accuracy of estimating the amount of residual water so as to accurately limit the flow of current, and which can suppress deterioration of the fuel cell. [Resolution Means] The fuel cell system is provided with a fuel cell containing a cell stack; an estimation unit for estimating the distribution of residual water in a reactant gas flow channel and the distribution of the water contained in an electrolyte membrane within the cell plane of each cell, by taking account of the movement of water between the anode and cathode through the electrolyte membrane; and an operation control unit for limiting the current drawn from the fuel cell when the amount of residual water in the reactant gas flow channel estimated by the estimation unit exceeds a prescribed threshold.