SYSTEM AND METHOD FOR CONTROLLING AIR SUPPLY TO FUEL CELL

An apparatus of a fuel cell system may comprise a current-voltage curve estimation circuit configured to estimate, based on a state of health (SoH) of a fuel cell stack of the fuel cell system, a current-voltage performance curve of the fuel cell stack, a lower limit current determination circuit configured to determine whether a current of the fuel cell stack is less than or equal to a lower limit current of the fuel cell stack, wherein the lower limit current is determined based on the SoH of the fuel cell stack under a condition in which a flow rate of air supplied to the fuel cell stack is reduced to maintain a voltage of the fuel cell stack within a voltage upper limit control region, an air flow rate increase control circuit, and a power load.