Discussion on Application Schemes of UHVDC Converter Station Bypass Pair

LYU Yin; ZHANG Wen; LAO Yingran; HE Yuanfeng; MO Wenbin

doi:10.13296/j.1001-1609.hva.2015.03.013

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Discussion on Application Schemes of UHVDC Converter Station Bypass Pair

更新时间：2025-04-26

- Discussion on Application Schemes of UHVDC Converter Station Bypass Pair
- High VoltageApparatus Vol. 51, Issue 3, Pages: 76-81(2015)
- 作者机构：
  
  中国南方电网超高压输电公司广州局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.03.013
  CLC： TM721.1
- Published：2015
- 稿件说明：
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[1]吕茵,张文,劳颖然,何园峰,莫文斌.特高压换流站投旁通对的策略及改进[J].高压电器,2015,51(03):76-81.

LYU Yin, ZHANG Wen, LAO Yingran, et al. Discussion on Application Schemes of UHVDC Converter Station Bypass Pair[J]. High voltageapparatus, 2015, 51(3): 76-81.
[1]吕茵,张文,劳颖然,何园峰,莫文斌.特高压换流站投旁通对的策略及改进[J].高压电器,2015,51(03):76-81. DOI： 10.13296/j.1001-1609.hva.2015.03.013.

LYU Yin, ZHANG Wen, LAO Yingran, et al. Discussion on Application Schemes of UHVDC Converter Station Bypass Pair[J]. High voltageapparatus, 2015, 51(3): 76-81. DOI： 10.13296/j.1001-1609.hva.2015.03.013.

摘要

在特高压输电工程（UHVDC）紧急停运（ESOF）或者闭锁（BLOCK）的过程中

换流站需根据不同的控制策略

投入旁通对以及闭合旁路开关。这对快速隔离故障或者保障其他阀组正常运行起着重要的作用。而错误地投入旁通对将对直流系统的紧急停运或闭锁产生不良影响。笔者就极闭锁时是否投入旁通对进行了对比

对不同策略下的实际波形进行了分析

说明在极闭锁时不投入旁通对更有利于直流系统的稳定运行。

Abstract

During UHVDC ESOF or BLOCK process

it is necessary for converter stations to apply bypass pair and to close bypass switches according to different control strategies

which is utmost important for isolating faults and keeping normal operation of other valve groups. However

mistaken application of the bypass pair will result in harmful effect on the ESOF or BLOCK process. In this paper

two situations（with and without application of bypass pair during BLOCK process） are discussed

and the actual waveforms of the two situations are analyzed. The result indicates that it is favorable to safe operation of UHVDC system in BLOCK process without application of bypass pair.

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