Patent ID: 10991963

Abstract:
A fuel cell system and a control method thereof are disclosed. The system includes a fuel cell stack having an anode and a cathode, an anode recirculation loop including the anode, a fuel supply device for providing a fuel gas via a fuel feed path, an air supply device for providing air to the cathode, an anode blower and a switching element. The loop has a first path and a second path, and the anode is arranged in the second path. During normal operation of the system, the fuel feed path and the first path are combined to form the second path, and the second path is split into the first path and a fuel exhaust path. The anode blower is configured for driving circulation through the loop. The switching element is located in at least one of the first path and the combining point and is configured to force the fuel gas to flow through the second path to the fuel exhaust path in the event of failure of the anode blower.