Study on Fault Diagnosis Technology of Power Capacitor Based on Condition Quantity Monitoring

XIAN Richang; LI Qiwei; SUN Xuefeng; WANG Tao; LIU Xinghua

doi:10.14044/j.1674-1757.pcrpc.2018.03.005

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Study on Fault Diagnosis Technology of Power Capacitor Based on Condition Quantity Monitoring

更新时间：2024-09-14

- Study on Fault Diagnosis Technology of Power Capacitor Based on Condition Quantity Monitoring
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 39, Issue 3, Pages: 21-25(2018)
- 作者机构：
  
  1. 山东理工大学电气与电子工程学院
  2. 国网聊城供电公司
  3. 国网淄博供电公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2018.03.005
  CLC： TM53
- Published：2018，
- 稿件说明：
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[1]咸日常,李其伟,孙学锋,王涛,刘兴华.基于状态量监测的电力电容器故障诊断技术的研究[J].电力电容器与无功补偿,2018,39(03):21-25.

XIAN RICHANG, LI QIWEI, SUN XUEFENG, et al. Study on Fault Diagnosis Technology of Power Capacitor Based on Condition Quantity Monitoring. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 21-25.
[1]咸日常,李其伟,孙学锋,王涛,刘兴华.基于状态量监测的电力电容器故障诊断技术的研究[J].电力电容器与无功补偿,2018,39(03):21-25. DOI： 10.14044/j.1674-1757.pcrpc.2018.03.005.

XIAN RICHANG, LI QIWEI, SUN XUEFENG, et al. Study on Fault Diagnosis Technology of Power Capacitor Based on Condition Quantity Monitoring. [J]. Power capacitor & reactive power compensation, 2018, 39(3): 21-25. DOI： 10.14044/j.1674-1757.pcrpc.2018.03.005.

摘要

本文针对电力电容器故障特点及离线试验存在的弊端

提出了基于运行电压、电容量、不平衡信号等参数作为状态监测量的故障诊断方法

结合相关规程标准设计了故障判别及其预警方案。利用Matlab/Simulink平台对电力电容器内部故障进行了仿真试验

研究了不同故障下电容器各状态量的变化规律

归纳总结了状态量变化与故障之间的关系

提出了基于差分思想的电力电容器故障定位方法

实现了故障的快速判别与定位

有效指导检修计划的制定。

Abstract

As for the fault feature and the shortcoming of offline test of power capacitor

in this paper

the fault diagnosis method taking such parameters as operation voltage

capacitance

unbalance signal etc.as condition monitoring and measurement are proposed

and the fault identification and early warning scheme is designed normally with combination of related rules.The internal fault of power capacitor is simulated and tested by Matlab/Simulink platform

the variation law of the state quantity of the capacitor under different faults are studied

the relationship between the change of the state quantity and the fault is summarized and the fault locating method of power capacitor based on differential idea is proposed so to achieve fast identification and location of the fault and instruct the draw-up of the maintenance plan.

关键词

电力电容器状态监测故障诊断差分原理预警功能

Keywords

power capacitorcondition monitoringfault diagnosisdifferential principleearly warning function

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