特高压柔性直流输电换流阀子模块防爆试验方案

doi:10.3969/j.issn.1008-0198.2026.03.018

湖南电力 ›› 2026, Vol. 46 ›› Issue (3): 139-145.doi: 10.3969/j.issn.1008-0198.2026.03.018

特高压柔性直流输电换流阀子模块防爆试验方案

李琦¹, 杨勇¹, 张涛¹, 周慧颖², 司徒柳凯², 秦亮²

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

收稿日期:2026-02-03 修回日期:2026-03-24 出版日期:2026-06-25 发布日期:2026-07-07
作者简介:李琦（1989）,女,高级工程师,注册设备监理工程师,从事柔性直流换流阀、极线断路器等大功率电力电子设备质量监督与可靠性提升研究工作。
基金资助:
国家电网有限公司科技项目（SGZB0000TGJS25000172）

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

LI Qi¹, YANG Yong¹, ZHANG Tao¹, ZHOU Huiying², SITU Liukai², QIN Liang²

1. State Grid Economic and Technological Research Institute Co., Ltd., Beijing 102209, China;
2. School of Electrical Engineering and Automation, Wuhan University, Wuhan 430072, China

Received:2026-02-03 Revised:2026-03-24 Online:2026-06-25 Published:2026-07-07

摘要/Abstract

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。

关键词: 特高压柔性直流输电, 换流阀, 子模块防爆, 爆炸特性, 防爆试验

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.

Key words: UHV flexible DC, converter valve, submodule explosion-proof, explosion characteristics, explosion-proof test

中图分类号:

TM721.1

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, ZHOU Huiying, SITU Liukai, QIN Liang. Explosion-Proof Test Scheme for UHV Flexible DC Converter Valve Submodules[J]. Hunan Electric Power, 2026, 46(3): 139-145.

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特高压柔性直流输电换流阀子模块防爆试验方案

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

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