Case Study on Converter Valve Protection in Open-circuit Test

LI Xia; CHEN Gan

doi:10.13296/j.1001-1609.hva.2012.03.017

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Case Study on Converter Valve Protection in Open-circuit Test

更新时间：2025-04-26

- Case Study on Converter Valve Protection in Open-circuit Test
- High VoltageApparatus Vol. 48, Issue 3, Pages: 86-89(2012)
- 作者机构：
  
  西安西电电力系统有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2012.03.017
  CLC： TM721.1
- Published：2012
- 稿件说明：
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[1]李侠,陈干.高压直流输电开路试验中换流阀设备保护的探讨[J].高压电器,2012,48(03):86-89.

LI Xia, CHEN Gan. Case Study on Converter Valve Protection in Open-circuit Test[J]. High voltageapparatus, 2012, 48(3): 86-89.
[1]李侠,陈干.高压直流输电开路试验中换流阀设备保护的探讨[J].高压电器,2012,48(03):86-89. DOI： 10.13296/j.1001-1609.hva.2012.03.017.

LI Xia, CHEN Gan. Case Study on Converter Valve Protection in Open-circuit Test[J]. High voltageapparatus, 2012, 48(3): 86-89. DOI： 10.13296/j.1001-1609.hva.2012.03.017.

摘要

在呼伦贝尔至辽宁直流输电工程换流阀直流开路试验中

由于换流阀多次保护触发动作引起系统跳闸

导致站系统试验无法进行。笔者结合该试验过程

从直流开路试验基本原理、换流阀监控和极控制保护几个方面进行分析讨论

提出阀控单元（VCU）对换流阀的保护完全可以保证换流阀设备的安全

极控制保护对换流阀保护触发动作的监控可只作为监视

不必产生系统跳闸

从而保证OLT试验顺利进行。

Abstract

In the open-circuit test of converter valve in Hulunbeier to Liaoning HVDC transmission project

the sub-system test was interrupted because of frequent tripping operations due to protection of converter vale.In this paper

the basic principle of open-circuit test

and the converter valve monitoring and pole control protection in the test are analyzed

and conclusions are drawn that VCU protection of converter valve is sufficient

and the pole control system should merely monitor the triggering action of converter valve protection instead of lead to system tripping

which may let the open-circuit test be performed successfully.

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