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Using of the wavelet theory in wiping off the yawp from the fuel cell signals

HUANG Qiang, ZHU Xin-jian, CAO Guang-yi(Institute of Fuel Cell, Shanghai Jiaotong University, Shanghai 200030,China)  
The output performance, such as voltage, current, power density, is a very important characteristic for the fuel cell in real usage. Because the operating environment of the fuel cell is complex, the output signals are always intermingled with different kinds of yawps. So the output is different from the real signal. In this paper, it designed a mathematic model of PEMFC from electrochemistry aspect, and adoped the wavelet theory in wiping off those yawps. After the test and simulation , the results were satisfying.
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