Analysis on Abnormal Unbalanced Current of AC Filter Capacitor of Converter Station Based on PSCAD/EMTDC

GU Zhipeng; HU Yunbing; WENG Hongzhi; LI Wei

doi:10.14044/j.1674-1757.pcrpc.2021.01.003

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Analysis on Abnormal Unbalanced Current of AC Filter Capacitor of Converter Station Based on PSCAD/EMTDC

更新时间：2024-09-14

- Analysis on Abnormal Unbalanced Current of AC Filter Capacitor of Converter Station Based on PSCAD/EMTDC
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 42, Issue 1, Pages: 12-17(2021)
- 作者机构：
  
  南方电网超高压输电公司广州局
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2021.01.003
  CLC： TM53;TM721.1
- Published：2021，
- 稿件说明：
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[1]古智鹏,胡蕴斌,翁洪志,李玮.基于PSCAD/EMTDC的换流站交流滤波器电容器不平衡电流异常分析[J].电力电容器与无功补偿,2021,42(01):12-17.

GU ZHIPENG, HU YUNBING, WENG HONGZHI, et al. Analysis on Abnormal Unbalanced Current of AC Filter Capacitor of Converter Station Based on PSCAD/EMTDC. [J]. Power capacitor & reactive power compensation, 2021, 42(1): 12-17.
[1]古智鹏,胡蕴斌,翁洪志,李玮.基于PSCAD/EMTDC的换流站交流滤波器电容器不平衡电流异常分析[J].电力电容器与无功补偿,2021,42(01):12-17. DOI： 10.14044/j.1674-1757.pcrpc.2021.01.003.

GU ZHIPENG, HU YUNBING, WENG HONGZHI, et al. Analysis on Abnormal Unbalanced Current of AC Filter Capacitor of Converter Station Based on PSCAD/EMTDC. [J]. Power capacitor & reactive power compensation, 2021, 42(1): 12-17. DOI： 10.14044/j.1674-1757.pcrpc.2021.01.003.

摘要

交流滤波器作为直流输电系统的重要组成部分

其运行工况直接影响着直流输电系统功率传输

本文结合交流滤波器实际运行经验

对交流滤波器C

电容器不平衡异常进行分析

总结出交流滤波器C

电容器不平衡故障主要为电容器本体故障和层间放电故障

并通过PSCAD/EMTDC仿真软件对故障原因进行研究分析验证

提出了C

电容器本体故障及层间放电故障的改善措施

对换流站交流滤波器的安全运行有着现实意义。

Abstract

The operation condition of AC filter

an important part of DC transmission system

affects directly power transmission of the HVDC power transmission. In this paper

the unbalance abnormality of C

capacitor of AC filter is analyzed with combination of the actual operation experience of AC filter

finding the unbalance fault of C

capacitor of AC filter is due to both capacitor proper and inter-layer discharge. The cause of the fault is analyzed

studied and verified by the PSCAD/EMTDC simulation software and the improvement measures for the fault of capacitor proper and inter-layer discharge is proposed

which has a practical significance to the safe operation of AC filter in the converter station.

关键词

PSCAD/EMTDC换流站交流滤波器C1电容器不平衡电流层间放电

Keywords

PSCAD/EMTDCconverter stationAC filter capacitorunbalanced current of C1 capacitorinterlayer discharge

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State Grid Operation Company Limited,Bejing

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