Explosion-Proof Test Scheme for UHV Flexible DC Converter Valve Submodules

LI Qi; YANG Yong; ZHANG Tao; ZHOU Huiying; SITU Liukai; QIN Liang

doi:10.3969/j.issn.1008-0198.2026.03.018

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Explosion-Proof Test Scheme for UHV Flexible DC Converter Valve Submodules

更新时间：2026-07-08

- Explosion-Proof Test Scheme for UHV Flexible DC Converter Valve Submodules
- Vol. 46, Issue 3, Pages: 139-145(2026)
- 作者机构：
  
  1. 国网经济技术研究院有限公司,北京,102209
  2. 武汉大学电气与自动化学院,湖北,武汉,430072
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1008-0198.2026.03.018
  CLC： TM721.1
- Online First：07 July 2026，
  
  Published：2026
- 稿件说明：
移动端阅览
李琦, 杨勇, 张涛, 周慧颖, 司徒柳凯, 秦亮. 特高压柔性直流输电换流阀子模块防爆试验方案[J]. 湖南电力, 2026, 46(3): 139-145.

LI Qi, YANG Yong, ZHANG Tao, et al. Explosion-Proof Test Scheme for UHV Flexible DC Converter Valve Submodules[J]. 2026, 46(3): 139-145.
李琦, 杨勇, 张涛, 周慧颖, 司徒柳凯, 秦亮. 特高压柔性直流输电换流阀子模块防爆试验方案[J]. 湖南电力, 2026, 46(3): 139-145. DOI： 10.3969/j.issn.1008-0198.2026.03.018.

LI Qi, YANG Yong, ZHANG Tao, et al. Explosion-Proof Test Scheme for UHV Flexible DC Converter Valve Submodules[J]. 2026, 46(3): 139-145. DOI： 10.3969/j.issn.1008-0198.2026.03.018.

摘要

针对特高压柔性直流输电换流阀子模块的防爆试验存在充电电压不足、试验内容不全、试验判据模糊等问题

分析特高压柔性直流输电换流阀子模块典型爆炸故障及爆炸冲击载荷作用下的关键承载薄弱部位;以薄弱环节为核心设计量化爆炸影响的试验考核指标;并进一步设计一套可复现的涵盖上下管直通、旁路开关拒动和故障后通流试验的子模块防爆试验方案。最后对国内某特高压柔性直流输电工程的子模块试品进行防爆试验测试

验证其防爆能力合格。

Abstract

The explosion-proof test for submodules of UHV flexible DC transmission converter valves suffers from inadequate charging voltage

incomplete test coverage

and ambiguous criteria. This paper examines typical explosion faults in UHV flexible DC converter valve submodules

identifies key weak points under explosive loads

and defines quantified test indicators centered on these vulnerabilities. A repeatable explosion-proof test scheme is then designed for submodules

including tests for upper/lower arm through-faults

bypass switch failure

and post-fault current-carrying capability. Finally

prototype submodules from a domestic UHV flexible DC project undergo explosion-proof testing

confirming their compliance with explosion-resistance requirements.

关键词

Keywords

references

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