机电工程技术2025，Vol.54Issue(16)：43-49,55,8.DOI:10.3969/j.issn.1009-9492.2025.16.008
超高速开关中电磁驱动机构动态特性分析与改进
Analysis and Improvement of the Dynamic Characteristics of the Electromagnetic Drive Mechanism in Ultra-high Speed Switches
摘要
Abstract
An in-depth analysis and optimization is conducted for the electromagnetic impact and structural damage encountered by the electromagnetic drive mechanism of ultra-high-speed circuit breakers during high-frequency operations.To enhance the performance of the distribution network and meet the stringent industrial requirements,especially the rapid segmentation capability of circuit breakers,transient electromagnetic field finite element analysis and flexible body dynamics theory are employed to construct a three-dimensional coupled simulation model,which allow for a comprehensive analysis of the dynamic characteristics of the electromagnetic drive mechanism.The significant influence of the driving ring's parameters on the dynamic characteristics is revealed and an improved scheme that incorporated a sloping structure is proposed to reduce stress concentration.Regarding material selection,it is recommended to use copper material with a thickness of 6～8 mm,it not only reduces costs but also ensures the dynamic responsiveness of the mechanism.The simulation results demonstrate that the maximum stress is reduced by 22.3%,and the effectiveness of the optimization scheme is verified through experiments.These results confirm a significant improvement in the dynamic performance of the electromagnetic drive mechanism.The study provides robust technical support and a solid theoretical foundation for the design and optimization of the electromagnetic drive mechanism of ultra-high-speed circuit breakers.关键词
电磁驱动机构/动态特性/结构优化/应力分析/耦合仿真Key words
electromagnetic drive mechanism/dynamic characteristics/structural optimization/stress analysis/coupling simulation分类
信息技术与安全科学引用本文复制引用
余银钢,陈红林,李岭,周光军,李文金,浦咏梅..超高速开关中电磁驱动机构动态特性分析与改进[J].机电工程技术,2025,54(16):43-49,55,8.基金项目
安徽省重点研究与开发计划项目(202104a05020078)2023 （202104a05020078）
