| 主权项 |
1. A fuel cell device comprising:
a fuel cell configured to generate power using a fuel gas and an oxygen-containing gas, the power supplied to an external load; a fuel gas supply device configured to supply the fuel gas to the fuel cell; an oxygen-containing gas supply device configured to supply the oxygen-containing gas to the fuel cell; a combusted space where the fuel gas not used for power generation and wasted from the fuel cell is combusted; an igniter configured to combust the fuel gas not used for power generation and wasted from the fuel cell; and a controller configured to control operation of the fuel gas supply device, the oxygen-containing gas supply device, and the igniter, wherein the controller is configured to allow the fuel gas supply device and the oxygen-containing gas supply device to change supply amounts of the fuel gas and the oxygen-containing gas in accordance with changes in power as required by the external load, and wherein the controller is further configured to allow the fuel gas supply device and the oxygen-containing gas device to supply the fuel gas and the oxygen-containing gas supplied to the fuel cell in a decreased supply amount less than a supply amount to be set in accordance with a decreased power as required by the external load, and configured to cause the ignitor to start operation if the power required by the external load decreases and flameout of the combustion in the combusted space is recognized. |
