Protection Mal-function Analysis of DC Filter and Suggestion on Algorithm Optimization

ZHANG Pengwang; LIU Jin; CUI Xuelong

doi:10.14044/j.1674-1757.pcrpc.2017.05.010

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Protection Mal-function Analysis of DC Filter and Suggestion on Algorithm Optimization

更新时间：2024-09-14

- Protection Mal-function Analysis of DC Filter and Suggestion on Algorithm Optimization
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 38, Issue 5, Pages: 49-53(2017)
- 作者机构：
  
  中国南方电网超高压输电公司大理局
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2017.05.010
  CLC： TM721.1
- Published：2017，
- 稿件说明：
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[1]张鹏望,刘进,崔学龙.一起直流滤波器保护误动分析及算法优化建议[J].电力电容器与无功补偿,2017,38(05):49-53.

ZHANG PENGWANG, LIU JIN, CUI XUELONG. Protection Mal-function Analysis of DC Filter and Suggestion on Algorithm Optimization. [J]. Power capacitor & reactive power compensation, 2017, 38(5): 49-53.
[1]张鹏望,刘进,崔学龙.一起直流滤波器保护误动分析及算法优化建议[J].电力电容器与无功补偿,2017,38(05):49-53. DOI： 10.14044/j.1674-1757.pcrpc.2017.05.010.

ZHANG PENGWANG, LIU JIN, CUI XUELONG. Protection Mal-function Analysis of DC Filter and Suggestion on Algorithm Optimization. [J]. Power capacitor & reactive power compensation, 2017, 38(5): 49-53. DOI： 10.14044/j.1674-1757.pcrpc.2017.05.010.

摘要

本文分析了金中直流在双极大地回线运行时一起直流线路故障导致直流滤波器保护误动的原因

指出故障的原因为直流滤波器保护算法不合理从而导致区外故障时直流滤波器保护比率差动误动作

详细分析算法后给出了相应的优化措施。实践证明

优化后的直流滤波器保护算法有效地提高了直流输电系统运行的可靠性。

Abstract

In this paper

the reason of a protection mal-function of DC filter caused by HVDC transmissionline in the operation of bi-polar ground return in Jinzhong HVDC line is analyzed. The reason for the faultis in the unreasonable protection algorithm of DC filter

causing differential mal-function of protection rateof DC filter in case of fault of external fault and the corresponding optimization measures are given after thealgorithm analysis in detail. It is proved by the practice that the protection algorithm of DC filter afteroptimization improves effectively operation reliability of the DC transmission system.

关键词

直流输电直流滤波器保护保护误动

Keywords

HVDC transmissionDC filter protectionmal-function

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