小波变换应用于金属氧化物避雷器在线监测信号处理的研究

Research of Signal Disposal of MOA On-line Monitoring with the Use of Wavelet Transform

利用小波分析可以同时在时域和频域进行局部分析的特点,将其应用于具有较大现场干扰背景的金属氧化物避雷器(以下简称MOA)泄漏电流在线监测的信号处理,对混合了噪音的原始信号进行小波分解,实现真实信号和噪音的分离,并进行了计算机仿真,证明这个方法是有效的。

Considering the features that the wavelet analysis can be used to perform simultaneously partial analysis in time and frequency domain,it is used in the signal disposal of MOA leakage current on-line monitoring under great disturbance background.The noise and the real signal is separated with the wavelet analysis and the emulation calculation is carried out to prove its validity.