Invention Grant
US08372555B2 Stack end cell heater control methodology 有权
堆栈终端加热器控制方法

Stack end cell heater control methodology
Abstract:
A fuel cell system that employs end cell heaters in the end cells of a fuel cell stack in the fuel cell system that consistently maintain the temperature of the end cells above the operating temperature of the stack so as to reduce water in the end cells. In one embodiment, the temperature of the end cells is maintained within the range of 80° C.-85° C. across the entire output power range of the fuel cell stack. In accordance with another embodiment of the invention, the end cells are electrically coupled in series, and the control signal for controlling the end cells heaters is selected to heat the warmest end cell to the desired temperature.
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