Research on cable partial discharge denoising based on an AVMD-adaptive wavelet packet method

被引：0
|
作者：
Wu T. [1 ]
Sun K. [1 ]
Shi W. [2 ]
机构：
[1] College of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo
[2] Chinalco Logistics Group Zhongzhou Co., Ltd., Jiaozuo
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Adaptive wavelet packet decomposition; AVMD; Partial discharge; Periodic narrow-band interference; White noise;
D O I：
10.19783/j.cnki.pspc.191116
中图分类号：
学科分类号：
摘要：
In order to extract the detected PD signal accurately and solve the problem of noise suppression of a high voltage power cable, AVMD combined with adaptive wavelet packet decomposition is proposed to extract a pure PD signal. First, the periodic narrow-band interference, white noise and PD signals are decomposed into different basic modal components by AVMD. The periodic narrowband interference is filtered out to obtain the partial discharge signal with white noise only. Then adaptive wavelet packet decomposition is used to decompose the signal in the high, middle and low frequency components. According to the threshold method, the components without a PD signal are filtered out to get a pure PD signal. The method is compared with one of the other methods. The simulation results show that the noise suppression effect of this method is more apparent, and the similarity with the simulation signal is the highest. © 2020, Power System Protection and Control Press. All right reserved.
引用
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页码：95 / 103
页数：8
相关论文
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