Fuel cell system

A fuel cell system is provided. The fuel cell system includes a fuel cell that includes an anode and a cathode, an anode gas path that supplies an anode fluid to the anode of the fuel cell, a cathode gas path that supplies a gaseous cathode fluid to the cathode of the fuel cell, a cathode fluid conveying source that is provided in the cathode gas path and conveys the cathode fluid to the cathode of the fuel cell, and a control system that controls power fed to a driving circuit of the cathode fluid conveying source such that an actual flow rate of the cathode fluid supplied to the cathode follows a target flow rate thereof and eases the following of the actual flow rate of the cathode fluid to the target flow rate when a draft resistance of the cathode gas path increases.