Improvement of Single Valve Grounding Failure Control Strategy in UHVDC

CHEN Gang; LI Heng

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Improvement of Single Valve Grounding Failure Control Strategy in UHVDC

更新时间：2025-11-18

- Improvement of Single Valve Grounding Failure Control Strategy in UHVDC
- Vol. 37, Issue 5, Pages: 74-78(2017)
- 作者机构：
  
  国网湖南电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM721.1
- Published：2017
- 稿件说明：
移动端阅览
[1]陈刚,李恒.特高压换流站单阀接地故障控保策略改进[J].湖南电力,2017,37(05):74-78.

CHEN Gang, LI Heng. Improvement of Single Valve Grounding Failure Control Strategy in UHVDC[J]. 2017, 37(5): 74-78.
[1]陈刚,李恒.特高压换流站单阀接地故障控保策略改进[J].湖南电力,2017,37(05):74-78. DOI：

CHEN Gang, LI Heng. Improvement of Single Valve Grounding Failure Control Strategy in UHVDC[J]. 2017, 37(5): 74-78. DOI：

摘要

换流器作为换流站的核心设备

其保护策略直接关系到直流输电工程的安全稳定运行。本文通过RTDS试验对原有的直流控保策略进行校核

分析了单阀接地故障中

健全阀组无法正常重启的原因

提出控保策略改进措施缩短高低端阀组闭锁时间差

实现了健全阀组的正常重启。最后通过RTDS试验验证了改进控保策略的可行性。

Abstract

As the core equipment in the converter station

the converter protection strategy is directly related to safe and stable of UHVDC projects. This paper checks the existing protection strategy through RTDS experiment

analyzes the failure reason of the perfect valve group restart and puts forword the improvement measures of the protection strategy to realize the restart of the perfect valve group by shorting the locking time difference between the perfect and fault valves. The feasibility and practicality of improvement is verified by RTDS experiment.

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Related Institution

Hunan Electric Power Test & Research Institute

Hunan Electric Power Dispatch & Communication Center

EHV Administration of Hunan Electric Power Corporation

湖南省电力公司超高压管理局湖南长沙410015

Qingyuan pumped storage power generation Co.,Ltd.

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