Anti-interference Study of Partial Discharge of Capacitor by High Frequency Current Detection Method

TANG Zhiguo; JIANG Tongtong; LIU Changbiao; WANG Qian

doi:10.14044/j.1674-1757.pcrpc.2016.05.014

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Anti-interference Study of Partial Discharge of Capacitor by High Frequency Current Detection Method

更新时间：2024-09-14

- Anti-interference Study of Partial Discharge of Capacitor by High Frequency Current Detection Method
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 37, Issue 5, Pages: 67-72(2016)
- 作者机构：
  
  1. 华北电力大学电气与电子工程学院
  2. 2. 北京华电智成电气设备有限公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2016.05.014
  CLC： TM53
- Published：2016，
- 稿件说明：
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[1]唐志国,蒋佟佟,刘昌标,王倩.高频电流法检测电容器局部放电的抗干扰研究[J].电力电容器与无功补偿,2016,37(05):67-72+77.

TANG ZHIGUO, JIANG TONGTONG, LIU CHANGBIAO, et al. Anti-interference Study of Partial Discharge of Capacitor by High Frequency Current Detection Method. [J]. Power capacitor & reactive power compensation, 2016, 37(5): 67-72.
[1]唐志国,蒋佟佟,刘昌标,王倩.高频电流法检测电容器局部放电的抗干扰研究[J].电力电容器与无功补偿,2016,37(05):67-72+77. DOI： 10.14044/j.1674-1757.pcrpc.2016.05.014.

TANG ZHIGUO, JIANG TONGTONG, LIU CHANGBIAO, et al. Anti-interference Study of Partial Discharge of Capacitor by High Frequency Current Detection Method. [J]. Power capacitor & reactive power compensation, 2016, 37(5): 67-72. DOI： 10.14044/j.1674-1757.pcrpc.2016.05.014.

摘要

局部放电检测是发现高压电力设备潜在绝缘缺陷和进行质量控制的重要手段。电容器试品由于电容量的限制及电磁干扰等原因

传统的脉冲电流法和超声波检测法的检测效果均具有一定的局限性。本文针对电容器出厂局放检测的特点和要求

研究开发了一种新型高频电流局部放电测量方法

该方法基于差动平衡接线方式

提出了双通道脉冲极性鉴别与特高频噪声传感器相结合的联合降噪方法

旨在提高现场强电磁干扰条件下局部放电检测的灵敏度;研制了相应的专用测量系统

通过现场试验证实了该方法的实际应用效果。结果表明该方法在强电磁干扰下能够实现电容器出厂局放检测。

Abstract

Partial discharge detection is an important means to find out potential insulation defects of high voltage power equipment and to carry out quality control. For the sample of capacitor

due to the limitation of capacitance and electromagnetic interference

the test result of both traditional pulse current method and ultrasonic testing method have some limitations. In this paper

according to the characteristics and requirements of delivery partial discharge detection of capacitor

a new type of high frequency partial discharge detection method of current is studied and developed. This method is based on differential balance wiring mode

a combined denoise method of the combination of dual channel pulse polarity identification and UHF noise sensor is proposed with purpose of improving the sensitivity of the partial discharge detection under strong electromagnetic interference condition. The corresponding special measurement system is developed and the actual application result of the method is proved by way of site test.The results show that the method is able to achieve the delivery partial discharge detection of capacitor under strong electromagnetic interference.

关键词

电容器高频电流法局部放电极性鉴别法联合降噪抗干扰

Keywords

capacitorhigh frequency current methodpartial dischargepolarity identification methodcombined de-noiseanti-interference

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