Partial Discharge Automatic Locating Algorithm for Cable under Oscillatory Wave Voltage Conditions Based on Traveling Wave Method

被引：0

作者：

Zhang R. ^{[1
]}

Chen Z. ^{[1
]}

Du G. ^{[2
]}

机构：

[1] Graduate School at Shenzhen, Tsinghua University, Shenzhen

[2] Guangzhou Power Supply Bureau Co., Ltd., Guangzhou

来源：

Gaodianya Jishu/High Voltage Engineering | 2019年 / 45卷 / 04期

关键词：

Cable test; Locating algorithm; Oscillatory wave; Partial discharge; Tolerance; Traveling wave method;

D O I：

10.13336/j.1003-6520.hve.20190329026

中图分类号：

学科分类号：

摘要：

Oscillatory wave test is an effective method for the defect detection and locating of cable; however, most of the partial discharge (PD) locating tests are finished manually. In order to save labor and time costs, we designed a novel partial discharge automatic locating algorithm for the oscillatory wave cable test based on the traveling wave method. This algorithm segments the pulses from the signal via floating threshold, and then matches the pulses according to the characteristic parameters of each pulse, thus the partial discharge locating is realized. Based on a real cable partial discharge signal, the influences of the tolerance of different matching conditions on the algorithm locating results were analyzed, and the optimal tolerance parameter was obtained. The field cable test results prove that the cable partial discharge location algorithm under the optimal parameter settings in this paper achieves the same location results as manual results, which is consistent with the actual defect situation. The algorithm can provide a reference for the PD location of cable in engineering applications. © 2019, High Voltage Engineering Editorial Department of CEPRI. All right reserved.

引用

页码：1289 / 1296

页数：7

共 21 条

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