Study on Influencing Factors of Inner Sensors for GIS Partial Discharge Detection

CHEN Lu; SI Wenrong; FU Chenzhao; GAO Kai

doi:10.13296/j.1001-1609.hva.2018.11.014

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Study on Influencing Factors of Inner Sensors for GIS Partial Discharge Detection

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- Study on Influencing Factors of Inner Sensors for GIS Partial Discharge Detection
- High VoltageApparatus Vol. 54, Issue 11, Pages: 103-108(2018)
- 作者机构：
  
  国网上海市电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2018.11.014
  CLC： TM855
- Published：2018
- 稿件说明：
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[1]陈璐,司文荣,傅晨钊,高凯.GIS局部放电检测用内置传感器影响因素研究[J].高压电器,2018,54(11):103-108.

CHEN Lu, SI Wenrong, FU Chenzhao, et al. Study on Influencing Factors of Inner Sensors for GIS Partial Discharge Detection[J]. High voltageapparatus, 2018, 54(11): 103-108.
[1]陈璐,司文荣,傅晨钊,高凯.GIS局部放电检测用内置传感器影响因素研究[J].高压电器,2018,54(11):103-108. DOI： 10.13296/j.1001-1609.hva.2018.11.014.

CHEN Lu, SI Wenrong, FU Chenzhao, et al. Study on Influencing Factors of Inner Sensors for GIS Partial Discharge Detection[J]. High voltageapparatus, 2018, 54(11): 103-108. DOI： 10.13296/j.1001-1609.hva.2018.11.014.

摘要

在气体绝缘组合电器（gas insulator switchgear

GIS）中利用局部放电所产生的特高频信号（ultra highfrequency

UHF）进行检测是目前的常用方法。内置式特高频传感器具有检测灵敏度高、可实现在线监测的特点。文中针对圆盘形内置式特高频传感器的影响因素进行研究

仿真分析了馈电点到圆盘中心的距离、多点馈电方式、填充介质介电常数、圆盘电极与金属底板距离、圆盘电极直径、馈电引线粗细及引线连接线长度等对其驻波比（VSWR）性能的影响规律。并在仿真的基础上提出了圆盘形传感器的优化结构

仿真结果表明

优化方案具有驻波比低、频带宽的特点

更适合于作为GIS局部放电检测用内置式特高频传感器。

Abstract

In the gas insulated switchgear（GIS）

it is a common method to measure the partial discharge using the ultra high frequency（UHF）signal generated by partial discharge. The UHF sensor in GIS has high detection sensitivityand is capable of online monitoring. In this paper

the factors influencing the disc-shaped inner UHF sensor are stud-ied. The influences of the factors

such as the distance from feeding point to disc center

the multi-point feedingmode

the dielectric constant of filling medium

the distance between disc electrode and metal base plate

the diame-ter of disc electrode

the thickness of feed lead

and the length of lead wire

on the sensor’s voltage standing wave ra-tio（VSWR）are analyzed. The optimized structure of the disc-shaped sensor is proposed based on simulation. Simu-lation results show that the optimized sensor has the features of low VSWR and wide band

so it is more suitable for GIS partial discharge detection as the inner UHF sensor.

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Related Author

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LU Jun2

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LI Yan-ming1

LI Xiao-feng1

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Related Institution

School of Electrical Engineering, Xi’an Jiaotong University

Hubei Electric Power Testing & Research Institute

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Hebei Shijiazhuang Power Supply Company

Electric Power Research Institute of Guangdong Power Grid Corporation

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