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Analysis of Discharge Causes in HVDC Converter Valve Clamping Sling
ID：143 View Protection：ATTENDEE Updated Time：2025-10-13 11:39:17 Hits：244 Poster Presentation

Start Time：2025-11-09 09:08（Asia/Shanghai）

Duration：1min

Session：P Poster presentation » P44.High voltage and insulation technology

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Abstract
 In recent years, discharge accidents involving the clamping slings in converter valve modules have occurred in multiple HVDC converter stations domestically and internationally. To investigate the discharge mechanism of clamping sling, a comprehensive evaluation of the electrical, mechanical, and material properties of faulty samples was conducted through methods including electric field simulation analysis, X-ray scanning, insulation resistance tests, elemental composition detection, and ion content detection. The results indicate that high ion content in the clamping sling is the root cause of the discharge fault. This study not only provides a scientific basis for the failure analysis of clamping sling but also offers guidance for developing effective preventive measures and improvement strategies. It holds significant practical value for ensuring the safe operation of converter valve equipment.
 
Keywords
converter valve,clamping sling,discharge
Speaker
Yu Huang
Engineer State Grid Sichuan Electrical Power UHVDC Center

Submission Author
Yu Huang State Grid Sichuan Electric Power DC Company
Jianxu Qin State Grid Sichuan Electric Power DC Company
Haojie Yin State Grid Sichuan Electric Power DC Company
Haoran Zhang State Grid Sichuan Electric Power DC Company
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Important Date

  • Conference Date

    Nov 07

    2025

    to

    Nov 09

    2025

  • Oct 30 2025

    Draft paper submission deadline

  • Nov 10 2025

    Registration deadline

Sponsored By
IEEE西南交通大学IAS学生分会
Organized By
西南交通大学电气工程学院
SPACI车网关系研究室
四川大学电力系统稳定与高压直流输电研究团队
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