Simulation on Mode Transformation and Propagation Attenuation of UHF Signal of Partial Discharge in GIS

DING Dengwei; GAO Wensheng; LIU Weidong

doi:10.13296/j.1001-1609.hva.2014.06.003

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Simulation on Mode Transformation and Propagation Attenuation of UHF Signal of Partial Discharge in GIS

更新时间：2025-04-26

- Simulation on Mode Transformation and Propagation Attenuation of UHF Signal of Partial Discharge in GIS
- High VoltageApparatus Vol. 50, Issue 6, Pages: 13-20(2014)
- 作者机构：
  
  1. 国网四川省电力公司电力科学研究院
  2. 清华大学电机系
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2014.06.003
  CLC： TM595
- Published：2014
- 稿件说明：
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[1]丁登伟,高文胜,刘卫东.GIS中特高频电磁波模式转换及传播效率的仿真研究[J].高压电器,2014,50(06):13-20.

DING Dengwei, GAO Wensheng, LIU Weidong. Simulation on Mode Transformation and Propagation Attenuation of UHF Signal of Partial Discharge in GIS[J]. High voltageapparatus, 2014, 50(6): 13-20.
[1]丁登伟,高文胜,刘卫东.GIS中特高频电磁波模式转换及传播效率的仿真研究[J].高压电器,2014,50(06):13-20. DOI： 10.13296/j.1001-1609.hva.2014.06.003.

DING Dengwei, GAO Wensheng, LIU Weidong. Simulation on Mode Transformation and Propagation Attenuation of UHF Signal of Partial Discharge in GIS[J]. High voltageapparatus, 2014, 50(6): 13-20. DOI： 10.13296/j.1001-1609.hva.2014.06.003.

摘要

GIS内除了能传递TEM波之外

还存在高次模波分量

如TE11波和TM01波。这些模态之间将相互转换

因此导致分析局部放电特高频信号在GIS内部传播的衰减特性变得困难。为此笔者对特高频信号的各种模态电磁波进行了仿真研究

分析了它们在各种典型GIS管道结构中的模态转换规律

以及GIS筒体结构对特高频电磁波信号在传播过程中所造成的影响

从而揭示了各种模态的特高频电磁波在GIS中传播的规律

解释了局部放电信号在GIS内部各种结构的传播衰减特性

并用试验进行验证。

Abstract

There exists higher order modes of electromagnetic wave（EM-wave）

such as TE11and TM01

in GIS except transverse EM-wave. Moreover

the mode transformation occurs while the EM-wave passes a typical structure of GIS

and different mode of EM-wave shows different attenuation characteristic. Hence

it is difficult to analyze the propagation attenuation of UHF PD signal. In this study

the high frequency structure simulator（HFSS） is adopted to simulate the propagation process of different mode of UHF EM-wave for discovering the propagation characteristics and interpreting the propagation attenuation of PD signal in GIS tank. Simulation results coincide with the experimental ones.

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