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Optimization of the High-Speed Train Grounding System Under Lightning Strike Conditions
ID：141 View Protection：ATTENDEE Updated Time：2025-11-03 11:44:17 Hits：383 Oral Presentation

Start Time：2025-11-09 11:35（Asia/Shanghai）

Duration：15min

Session：S5 5.AI-driven technology » S55.AI-driven technology

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Abstract
As China's high-speed railway network has surpassed 42,000 kilometers in total length, operational challenges including harmonic distortions, voltage fluctuations, and grounding loop currents have raised considerable concerns regarding power system stability and train operational safety. This study focuses on the optimization of the grounding system in high-speed trains to improve operational safety and reliability. By developing an equivalent circuit model of the "catenary-train-track" system, simulation analyses are carried out to evaluate the impact of various grounding configurations under lightning strike conditions. An improved Grey Wolf Optimizer (GWO) is applied to optimize grounding resistance parameters, achieving an effective balance between peak overvoltage and overcurrent. The results demonstrate that the proposed optimization approach can mitigate overvoltage and overcurrent issues under the tested operational scenario.
 
Keywords
High-speed railway, Grounding system, Overvoltage, Overcurrent, Intelligent Optimization
Speaker
chongxuan yang
Southwest Jiaotong University

Submission Author
chongxuan yang Southwest Jiaotong University
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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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