电器与能效管理技术 ›› 2025, Vol. 0 ›› Issue (5): 34-42.doi: 10.16628/j.cnki.2095-8188.2025.05.005

• 研究与分析 • 上一篇    下一篇

基于磁流体动力学的交流接触器分断电弧形态研究

罗洋, 于秀义, 蒋旭艳, 徐军帅, 陈远, 刘振翔   

  1. 上海正泰智能科技有限公司, 上海 201600
  • 收稿日期:2025-03-05 出版日期:2025-05-30 发布日期:2025-07-24
  • 作者简介:罗洋(1991—),男,工程师,主要从事低压电器电弧仿真研究。|于秀义(1987—),男,工程师,主要从事低压电器设计与仿真研究。|蒋旭艳(1995—),女,工程师,博士,主要从事低压电器电弧理论与仿真研究。

Research on Arc Morphology of AC Contactor Interrupting Based on Magnetohydrodynamics

LUO Yang, YU Xiuyi, JIANG Xuyan, XU Junshuai, CHEN Yuan, LIU Zhenxiang   

  1. Shanghai Chint Intelligent Technology Co.,Ltd., Shanghai 201600, China
  • Received:2025-03-05 Online:2025-05-30 Published:2025-07-24

摘要:

基于磁流体动力学(MHD)理论,针对实际工业产品,建立触头动态分断的3D电弧运动模型,使仿真模型更加接近电弧分断的真实物理工况。分析电弧在不同起始电流下分断之后的运动过程,并利用高速摄影技术进行相关试验,与仿真结果对比验证,充分证明了仿真模型的有效性。通过对不同电流分断电弧的仿真研究,指出结构中电弧停滞现象出现的位置和原因,分析分断大电流时电弧停滞加剧的成因,为该类产品后续的研发改进提供理论指导。

关键词: 接触器, 空气电弧, 电弧仿真, 多物理场仿真, 灭弧室

Abstract:

Based on magnetohydrodynamics (MHD) theory, a 3D arc motion model for the dynamic breaking of contacts is established to simulate in the practical industrial products,making the simulation model closer to the real physical conditions of arc interruption.The arc motion process after interruption under different initial currents is analyzed.High-speed photography technology is used to carry out the relevant experiments.The comparison and verification with the simulation results fully demonstrate the effectiveness of the simulation model.Through the simulation study of arcs interruption under different currents,the location and causes of arc stagnation in the structure are pointed out,the reasons for the aggravation of arc stagnation during the interruption of large currents are analyzed,and the theoretical guidance is provided for the subsequent research and development of such products.

Key words: contactor, air arc, arc simulation, multi-physics simulation, arc chamber

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