电器与能效管理技术Issue(9)：54-60,7.DOI:10.16628/j.cnki.2095-8188.2025.09.007
交流电磁系统噪声及其抑制的研究
Study on AC Electromagnetic System Noise and Its Suppression
李新叶 1李为为 1季勤雄2
作者信息
- 1. 德力西电气有限公司 上海研发中心,上海 201803
- 2. 德力西电气有限公司,浙江乐清 325600
- 折叠
摘要
Abstract
Taking the electromagnetic system of an AC contactor as an example,the mechanism and key influencing factors of noise generation in AC electromagnets are theoretically investigated.Through Ansys finite element electromagnetic simulation,it is concluded that five parameters-the inner pole area of the short-circuit ring,contacting airgap between the core pole surfaces,coil power angular frequency,short-circuit ring resistance,and short-circuit ring turns are critical factors affecting electromagnetic noise suppression.These parameters can be optimized using three equations:the pole area ratio between inner and outer of the short-circuit ring,the phase difference of magnetic fluxes between inner and outer of the short-circuit ring,and the comprehensive coefficient of the short-circuit ring.A categorical analysis of contactor electromagnetic system noise is conducted to identify the corresponding root causes.Finally,several simulation examples validate the correctness of the conclusions.关键词
交流电磁铁/电磁噪声/噪声抑制/接触气隙/分磁效果/短路环噪声Key words
AC electromagnet/electromagnetic noise/noise suppression/contact airgap/magnetic divide effect/noise with short-circuit ring分类
信息技术与安全科学引用本文复制引用
李新叶,李为为,季勤雄..交流电磁系统噪声及其抑制的研究[J].电器与能效管理技术,2025,(9):54-60,7.
