Partial discharge location of power cables based on an improved phase difference method

被引：17

作者：

Lan, Sheng ^{[1
]}

Hu, Yue-Qun ^{[1
]}

Kuo, Cheng-Chien ^{[2
]}

机构：

[1] Fuzhou Univ, Coll Elect Engn & Automat, Fuzhou, Fujian, Peoples R China

[2] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2019年 / 26卷 / 05期

关键词：

Partial discharges; Power cables; Fault location; Noise reduction; Signal to noise ratio; Continuous wavelet transforms; Estimation; partial discharges; PD location; power cable; HOS criterion; general cross-validation thresholding; PATTERN-RECOGNITION; CROSS-VALIDATION; PD; DOMAIN;

D O I：

10.1109/TDEI.2019.008202

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 paper aims to use only one sensor to achieve better PD fault location of power cables in a low signal-to-noise ratio (SNR) noise environment. Therefore, an improved phase difference (IPD) method based on one sensor is used to estimate the PD fault location of power cables. This method has a good advantage of using only the first two PD peaks, which is suitable for location estimation in the low SNR noise environment. The white Gaussian noise is regarded as background noise to simulate the noise environment. In order to enhance the accuracy of the IPD method in the noisy environment, a new denoising algorithm combining high-order statistics (HOS) criterion and generalized cross-validation (GCV) thresholding is proposed to process PD signals. The results show the good performance of the proposed denoising algorithm and higher location accuracy of the IPD method in the low SNR noise environment.

引用

页码：1612 / 1619

页数：8

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