FUEL CELL SYSTEM AND METHOD FOR CONTROLLING THE SAME
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United States of America Patent
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Issued Date -
Aug 2, 2012
app pub date -
Jan 18, 2012
filing date -
Jan 27, 2011
priority date (Note) -
Abandoned
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Abstract
A method for controlling a fuel cell system includes following steps. It is determined whether an output voltage of a fuel cell stack in the fuel cell system is greater than or equal to a temporary voltage during a first predetermined period, and if yes, an output current of the fuel cell stack is progressively increased during a second predetermined period, and if not, when a variation degree of the output voltage of the fuel cell stack is greater than a predetermined value, the output current of the fuel cell stack is progressively decreased during the second predetermined period. The output voltage of the fuel cell stack is changed in response to progressive increasing or progressive decreasing of the output current of the fuel cell stack, and the temporary voltage is updated to the changed output voltage after a third predetermined period.
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