Leakage current analysis of DC cable based on wavelet packet decomposition

被引：0
|
作者：
Chen Z. [1 ]
Xu Y. [1 ]
Li Z. [1 ]
Sheng G. [1 ]
Jiang X. [1 ]
机构：
[1] School of Electrical Engineering, Shanghai Jiao Tong University, Shanghai
来源：
Sheng, Gehao (shenghe@sjtu.edu.cn) | 2018年 / Science Press卷 / 39期
关键词：
DC cable; Leakage current; Waveform analysis; Wavelet packet transform;
D O I：
10.19650/j.cnki.cjsi.J1802920
中图分类号：
学科分类号：
摘要：
The leakage current in a DC cable refers to the current flowing through the main insulation from the core to the metal sheath, reflecting the overall moisture and overall deterioration of the medium. There are differences in the different leakage current waveforms in DC cables correspond to different fault defects. In this paper, three common fault models are constructed based on XLPE cables, and the collected leakage current signals are analyzed by wavelet packet transform. The results show that the wavelet packet decomposition method can effectively analyze the leakage current of DC cables and deduce the fault modes according to the leakage current characteristics of different defects. © 2018, Science Press. All right reserved.
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页码：163 / 170
页数：7
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