考虑ΔE效应的磁控电抗器振动特性分析  

Vibration analysis of magnetic controllable reactor consideringΔE effect

作　　者：闫荣格[1,2] 张晓杰[1,2] YAN Rong-ge;ZHANG Xiao-jie(State Key Laboratory of Reliability and Intelligence of Electrical Equipment,Hebei University of Technology,Tianjin 300130,China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]省部共建电工装备可靠性与智能化国家重点实验室,河北工业大学,天津300130 [2]河北省电磁场与电器可靠性重点实验室,河北工业大学,天津300130

出　　处：《电工电能新技术》2020年第7期1-8,共8页Advanced Technology of Electrical Engineering and Energy

基　　金：国家自然科学基金项目(51777054)。

摘　　要：在磁控电抗器气隙填充负超磁致伸缩材料能够减振。但是超磁致伸缩材料的杨氏模量E在磁场中会发生变化,即具有ΔE效应。本文针对这一特点,基于有限元法建立了考虑垫块ΔE效应的磁控电抗器电磁-机械耦合模型,对磁控电抗器的振动特性进行了分析,最后对定制的磁控电抗器样机的振动加速度进行了实验测量,仿真和实验结果验证了所建立数学模型的正确性,为电工装备减振降噪提供了理论依据。The vibration of magnetic controllable reactor(MCR)can be damped by filling the gap of reactor core with negative giant magnetostrictive material(NGMM).However,the Young’s modulus E of NGMM changes in magnetic field,that is,hasΔE effect.In this paper,an electromagnetic-mechanical coupled model of MCR considering theΔE effect is established based on the finite element method.Then the vibration properties of MCR are analyzed.Finally,the vibration acceleration of a MCR sample is measured.The simulation and experimental results verify the correctness of the established mathematical model.This thesis provides a theoretical basis to reduce the vibration of the electrical equipment.

关 键 词：负超磁致伸缩材料 磁控电抗器 ΔE效应 有限元法 

分 类 号：TM474[电气工程—电器]