Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C<sub>1</sub> at Yidu Converter Station

WU Jiaqi; CHEN Fei; TAN Jing; GAN Shen; KANG Shouya; WANG Feng

doi:10.14044/j.1674-1757.pcrpc.2020.06.002

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Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C₁ at Yidu Converter Station

更新时间：2024-09-14

- Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C₁ at Yidu Converter Station
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 41, Issue 6, Pages: 8-14(2020)
- 作者机构：
  
  1. 国网湖北省电力有限公司检修公司
  2. 国网湖北省电力有限公司直流运检公司
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2020.06.002
  CLC： TM53;TM721.1
- Published：2020，
- 稿件说明：
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[1]吴嘉琪,陈飞,谭静,甘晟,康守亚,王枫.宜都换流站直流滤波器电容器C_1不平衡保护频繁告警原因分析及解决措施[J].电力电容器与无功补偿,2020,41(06):8-14.

WU JIAQI, CHEN FEI, TAN JING, et al. Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C₁ at Yidu Converter Station. [J]. Power capacitor & reactive power compensation, 2020, 41(6): 8-14.
[1]吴嘉琪,陈飞,谭静,甘晟,康守亚,王枫.宜都换流站直流滤波器电容器C_1不平衡保护频繁告警原因分析及解决措施[J].电力电容器与无功补偿,2020,41(06):8-14. DOI： 10.14044/j.1674-1757.pcrpc.2020.06.002.

WU JIAQI, CHEN FEI, TAN JING, et al. Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C₁ at Yidu Converter Station. [J]. Power capacitor & reactive power compensation, 2020, 41(6): 8-14. DOI： 10.14044/j.1674-1757.pcrpc.2020.06.002.

摘要

本文结合500 kV宜都换流站极I直流滤波器Z12电容器C

不平衡保护频繁告警事件

基于站内直流滤波器电容器不平衡保护配置情况

系统分析了直流滤波器参数配置合理性、光纤电流互感器及其二次测量回路故障以及电容器塔层间复合绝缘子绝缘性能降低3种因素对不平衡保护的影响

提出对电容塔层间复合绝缘子喷涂PRTV防污闪涂料的解决措施

实际运行验证了该措施的有效性

为直流输电工程直流滤波器日常检修维护提供了科学的理论依据及合理、有序的现场检查、维护经验。

Abstract

In this paper

the influence of such three factors as unreasonable allocation of DC filter

fault of optical fifer current transformer and its secondary measurement circuit and the reduced dielectric performance of composite insulator between capacitor towers is analyzed systematically with combination of frequent warning of unbalanced protection of capacitor C

of DC filter Z

at pole I of Yidu 500 kV converter station and based on the unbalanced protection allocation DC filter capacitor in the station.The solution to the PRTV anti-pollution flash coating on the porcelain between the capacitor towers is proposed.The effectiveness of the measures is verified by the

actual operation

which provides a scientific theoretical basis and reasonable on-site maintenance experience for the daily maintenance and repair of DC filters for HVDC power transmission engineering.

关键词

高压直流输电直流滤波器高压电容器电容器不平衡保护

Keywords

HVDC power transmissionDC filterhigh voltage capacitorunbalance protection forcapacitor

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Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C1 at Yidu Converter Station

DOI：10.14044/j.1674-1757.pcrpc.2020.06.002

摘要

Abstract

关键词

Keywords

references

Analysis and Solution on Frequent Warning of Unbalance Protection of DC Filter Capacitor C₁ at Yidu Converter Station