Modeling Water Tree for XLPE Cable Loss Current Numerical Calculation

FU Jin-song 1; CHEN Jun-wu 1; SHU Zhou 1; YANG Fan 2

doi:10.13296/j.1001-1609.hva.2013.05.016

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Modeling Water Tree for XLPE Cable Loss Current Numerical Calculation

更新时间：2025-04-26

- Modeling Water Tree for XLPE Cable Loss Current Numerical Calculation
- High VoltageApparatus Vol. 49, Issue 5, Pages: 86-89(2013)
- 作者机构：
  
  1. 华中科技大学电气与电子工程学院
  2. 湖北电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2013.05.016
  CLC： TM247
- Published：2013
- 稿件说明：
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[1]符劲松,陈俊武,舒舟,杨帆.含水树枝的XLPE电力电缆损耗电流建模仿真计算[J].高压电器,2013,49(05):86-89.

FU Jin-song 1, CHEN Jun-wu 1, SHU Zhou 1, et al. Modeling Water Tree for XLPE Cable Loss Current Numerical Calculation[J]. High voltageapparatus, 2013, 49(5): 86-89.
[1]符劲松,陈俊武,舒舟,杨帆.含水树枝的XLPE电力电缆损耗电流建模仿真计算[J].高压电器,2013,49(05):86-89. DOI： 10.13296/j.1001-1609.hva.2013.05.016.

FU Jin-song 1, CHEN Jun-wu 1, SHU Zhou 1, et al. Modeling Water Tree for XLPE Cable Loss Current Numerical Calculation[J]. High voltageapparatus, 2013, 49(5): 86-89. DOI： 10.13296/j.1001-1609.hva.2013.05.016.

摘要

水树枝老化被认为是影响交联聚乙烯（XLPE）电力电缆绝缘性能最主要的原因。随着水树枝老化的加剧

XLPE电力电缆损耗电流波形会产生畸变

损耗电流三次谐波分量的相位和幅值会产生明显变化

因此损耗电流的监测可以用来诊断XLPE电缆水树枝老化。笔者基于半导体二极管的非线性特性

建立了XLPE电缆水树枝非线性模型

提出了一种损耗电流数值计算的方法。仿真计算的损耗电流波形与试验测得波形误差较小

建模仿真计算方法的正确性得到了验证。

Abstract

Water tree degradation phenomenon constitutes a serious problem in XLPE insulated power cables.The presence of the water trees would lead to harmonic components in the insulation loss current

and the change of the amplitude and phase angle of the third harmonic loss current

so the loss current monitoring can be a tool to diagnosis XLPE cable water trees aging.Based on the diode semiconductor

the paper models the non-linear characteristics of water tree

proposes a method of loss current numerical calculation.Compared with the measured waveform of the loss current

the correctness of the numerical calculation has been verified.

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