基于小波变换的反向行波识别方法研究

Study on Recognize Methods of Reflected Wave Based on Wavelet Transform

简要论述了煤矿井下高压电网行波测距所需要解决的关键问题,针对该问题详细论证了故障点反射波的识别方法,基于小波变换模极大值的波形比较法来识别故障点反射波,对故障点反射波性质的识别进行验证,进而准确识别初始行波和故障点反射波。仿真结果表明,该方法有效且有很高的精确度。

The important question of traveling wave fault location in mine high voltage network is discussed briefly. And for this issue, demonstrates the recognize methods of fault reflected wave. Base on the wavelet transform modulus maxima, the waveform comparison method mainly identified the fault reflected waves. In company with the proved nature of fault reflected wave, to accurately identify the initial fault traveling wave and reflection wave. Results of ATP simulation show that the method is effective and highly accuracy.