小波理论在燃料电池信号去噪处理中的应用

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

电压、电流、比功率等输出特性是燃料电池的重要指标。由于燃料电池的工作环境特殊,内部仪器、外部强电等干扰信号较多,监测系统不能准确地反映电池真实性能。以质子交换膜燃料电池(PEMFC)为研究对象,从电化学角度出发,建立了电池数学模型,并把它与小波变换理论相结合,对电池输出信号进行处理,经实验、仿真取得了良好的效果。

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.