| abstract |
The present invention provides a method of operating a fuel cell system, which controls whether or not the circulation pump (50) is activated to deliver water to the fuel cell (10) And the power consumption of the fuel cell 10 is controlled by comparing the consumption cost of the fuel required for production by the fuel cell 10 and the output cost of the fuel cell 10 so that one or more fuel cells The cost of fuel required for operation is calculated in real time considering the use of the building, the seasonal unit price, and the price per unit of time, and if the economy is generated, the unit operates at the rated output. If economical efficiency does not occur, It can be controlled so that it can be stopped. |