带导磁套的表贴式永磁电机磁极结构优化研究杨松ꎬ艾阳ꎬ毛远帆(中国核动力研究设计院核反应堆系统设计技术重点实验室ꎬ四川成都610213)摘要采用导磁套的表贴式磁极结构与传统表贴式永磁电机相比ꎬ能够改善气隙磁密波形正弦性低、反电动势谐波含量高ꎬ电机谐波损耗大等问题ꎮ文中选取电机的齿槽转矩、气隙磁密谐波畸变率、反电动势谐波畸变率和气隙磁密基波幅值为优化目标ꎬ选取极弧系数、磁钢厚度、气隙、导磁套厚度、槽口宽度为优化参数ꎮ利用有限元仿真软件和Taguchi多目标优化方法进行优化设计ꎮ研究表明ꎬ该结构具有减少齿槽转矩、提高气隙磁密基波赋值ꎬ降低谐波畸变率ꎬ改善气隙磁密波形和空载反电动势波形正弦度的作用ꎮ关键词永磁电机ꎻ表贴式ꎻ气隙磁场ꎻ多目标优化DOI:10.3969/J.ISSN.1008 ̄7281.2023.04.04中图分类号:TM301.4+1文献标识码:A文章编号:1008 ̄7281(2023)04 ̄0012 ̄006OptimizationResearchonMagneticPoleStructureofSurface ̄MountedPermanentMagnetMachinewithMagneticConductionSleeveYangSongꎬAiYangandMaoYuanfan(ReactorSystemDesignTechnologyKeyLaboratoryꎬNuclearPowerInstituteofChinaꎬChengdu610213ꎬChina)AbstractComparingwiththetraditionalsurface ̄mountedpermanentmagnetmachineꎬthesurface ̄mountedpermanentmagnetmachinewithmagneticguidesleevecanimprovetheproblemthattheairgapfluxdensitywaveformhaslowsinusoidalpropertyꎬbackEMFhashighharmoniccontentꎬthemotorhashighharmoniclossandsoon.Thispapertakesthecoggingtorqueofmotorꎬtheharmonicdistortionrateofair ̄gapfluxdensityꎬth...