Time-Frequency Maps for Multiple Partial Discharge Sources Separation in Cable Terminations

被引：14

作者：

Li, Yufeng ^{[1
]}

Han, Jinchun ^{[1
]}

Du, Yufeng ^{[1
]}

Jin, Haiyun ^{[2
]}

机构：

[1] Taiyuan Univ Technol, Coll Elect & Power Engn, Taiyuan 030024, Peoples R China

[2] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2023年 / 38卷 / 03期

基金：

山西省青年科学基金;

关键词：

Power cables; Partial discharges; Feature extraction; Discharges (electric); Wavelet transforms; Time-frequency analysis; Clustering algorithms; Cable terminations; feature extraction; partial discharge; pulse signal separation; synchrosqueezed wavelet transform; time-frequency maps; CLASSIFICATION;

D O I：

10.1109/TPWRD.2023.3256127

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter proposes improved time-frequency maps for separating multiple partial discharge (PD) sources in cable terminations. PD signals are acquired through a digital measurement system and a high frequency current transformer. The waveform of each pulse is analyzed by synchrosqueezed wavelet transform, and six representative feature parameters are proposed to form time-frequency maps. The results show that the proposed algorithm is effective for discriminating mixed PD sources in cable terminations and pulses from power electronic devices detected simultaneously by the PD measurement system.

引用

页码：2228 / 2231

页数：4

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