| 主权项 |
1. A fuel cell system which is configured to perform a higher-efficiency operation and a lower-efficiency operation having a larger power loss than the higher-efficiency operation, the fuel cell system comprising:
an oxidizing gas piping system which supplies an oxidizing gas to the fuel cell; a fuel gas piping system which supplies a fuel gas to the fuel cell; and a controller programmed to control at least the oxidizing gas piping system and the fuel gas piping system to control the fuel cell system to perform the lower-efficiency operation at a predetermined low temperature to raise the temperature of a fuel cell in a shorter time than the higher-efficiency operation, wherein the controller is programmed to use prohibition indication means which indicates if at least one of the predetermined conditions is established for the fuel cell system, and prohibit the start of the lower-efficiency operation so as to execute the higher-efficiency operation when the prohibition indication means indicates that at least one of the predetermined conditions is established at the predetermined low temperature, wherein the predetermined conditions include at least one of a time when a generated power of the fuel cell by the lower-efficiency operation cannot be consumed, a time when the generated power of the fuel cell by the lower-efficiency operation cannot be accumulated in a power accumulation device, a time when the amount of the power accumulated in the power accumulation device is larger than a predetermined amount, a time when flooding is generated in the fuel cell, and a time when there is a request for stopping power generation of the fuel cell. |
