Calibration Method of Distributed UHF Sensors of GIS by On-site Travelling Wave

WANG Xueli; NIU Bo; ZHAO Shanchuan; YE Xiaolin; HUANG Qifeng; LI Yafeng; GOU Xuanqi; REN Shuangzan

doi:10.13296/j.1001-1609.hva.2021.01.024

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Calibration Method of Distributed UHF Sensors of GIS by On-site Travelling Wave

更新时间：2025-04-26

- Calibration Method of Distributed UHF Sensors of GIS by On-site Travelling Wave
- High VoltageApparatus Vol. 57, Issue 1, Pages: 165-170(2021)
- 作者机构：
  
  1. 国网西咸新区供电公司
  2. 国网陕西省电力公司电力科学研究院
  3. 国网西安供电公司
  4. 国网陕西省电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2021.01.024
  CLC： TM595;TP212
- Published：2021
- 稿件说明：
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[1]王雪莉,牛博,赵山川,叶晓琳,黄奇峰,李亚峰,苟烜齐,任双赞.GIS分布式特高频传感器的现场行波标定方法[J].高压电器,2021,57(01):165-170.

WANG Xueli, NIU Bo, ZHAO Shanchuan, et al. Calibration Method of Distributed UHF Sensors of GIS by On-site Travelling Wave[J]. High voltageapparatus, 2021, 57(1): 165-170.
[1]王雪莉,牛博,赵山川,叶晓琳,黄奇峰,李亚峰,苟烜齐,任双赞.GIS分布式特高频传感器的现场行波标定方法[J].高压电器,2021,57(01):165-170. DOI： 10.13296/j.1001-1609.hva.2021.01.024.

WANG Xueli, NIU Bo, ZHAO Shanchuan, et al. Calibration Method of Distributed UHF Sensors of GIS by On-site Travelling Wave[J]. High voltageapparatus, 2021, 57(1): 165-170. DOI： 10.13296/j.1001-1609.hva.2021.01.024.

摘要

局部放电带电检测仪器广泛应用于电力设备状态检测

而特高频（ultra-high frequency

UHF）传感器作为一种在线监测装置

在气体绝缘全封闭组合电器（gas insulated substation

GIS）中被广泛应用

但尚缺少针对GIS特高频传感器的现场标定方法。为解决GIS特高频传感器现场标定难题

文中提出了基于皮秒级行波注入的GIS传感器现场标定方法。首先

研究了GIS直筒、转角、盆式绝缘子等对皮秒级行波脉冲的畸变和衰减规律;其次

对比研究了不同行波脉冲注入方式对脉冲波形和幅值的影响

提出适用于GIS现场的行波注入方式;最后

进行GIS分布式特高频传感器的现场同步标定研究。发现该标定方法可实现GIS中不同位置的多个UHF传感器的现场同步标定

可获取特高频检测系统频率响应、带宽、灵敏度等

对于提高电力系统局部放电监测水平和运行稳定性具有积极的推动作用。

Abstract

Partial discharge live detector is widely used in the condition detection of power equipment

while

the Ultra-high frequency（UHF） sensor

as a kind of on-line monitoring device

is used widely in gas insulated switchgear（GIS） but is lack of site calibration method for the UHF sensor of GIS.For solving the difficulty of site calibration of UHF sensor of GIS

the on-site calibration method based on the picosecond level traveling wave is proposed in this paper.Firstly

the influence of different GIS structure such as the straight cylinders

corners

and insulating spacers on the attenuation and distortion is studied.Secondly

the effects of different traveling wave pulse injection methods on pulse waveforms and amplitudes are comparatively studied and the travelling wave injection mode for GIS at site is proposed.Finally

the on-site synchronous calibration study of distributed UHF sensors for GIS is carried out.The calibration method realizes the on-site synchronous calibration study of multiple UHF sensors in different positions in GIS is performed

which helps to accurately obtain the frequency response

bandwidth

sensitivity

etc.of the UHF detection system

and has positive advantages in improving partial discharge monitoring level and operating stability of the power system.

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