FUEL CELL SYSTEM AND FUEL CELL STATE DETECTION METHOD

摘要

A fuel cell system (100) includes: a fuel cell stack (10) formed by stacking a plurality of call groups each of which includes at least one cell (11); voltage detection units (41) that detect cell group voltages of the respective cell groups; and a determination unit (52) that determines whether the cell group voltage of a determination-target cell group that is selected from among the plurality of cell groups is equal to or lower than the threshold voltage that is obtained based on the average value and the standard deviation of the cell group voltages of the cell groups in a population that is formed of at least two of the cell groups selected from among the plurality of cell groups.