中国电机工程学报2017，Vol.37Issue(21)：6190-6197,8.DOI:10.13334/j.0258-8013.pcsee.171411
串联永磁轴向磁场磁通切换记忆电机设计与调磁特性分析
Design and Flux Regulation Performance Investigation of Series Permanent Magnet Axial Flux-Switching Memory Machine
摘要
Abstract
A novel axial flux-switching memory machine with series permanent magnets (SPM) was proposed in this paper. The machine was designed and the flux regulation characteristics were evaluated. By adding a low coercive force (LCF) PM, whose magnetization state can be varied by magnetization control pulse current, to a high coercive force (HCF) PM, high air-gap flux density as well as direct flux regulation can be realized. The influences of PM ratio on the magnet flux density and the flux regulating factor were investigated by the 3D finite element analysis (3D-FEA). The magnetic field distribution of the series PMs and the corresponding electromagnetic performance under different magnetization states were comprehensively investigated. Based on the previous analysis, a prototype was manufactured and tested. The measurements validate the correctness of the simulation results. It is proved that a continuous and smooth flux control capability is obtained by varying the magnetization states of the LCF PM through pulse current. The copper loss produced by magnetization control pulse current is negligible and thus the machine efficiency in the high speed region is improved. The solution enables flux controllability in the flux-switching machine and is very suitable for electric vehicles where the wide-speed operation and high efficiency are required.关键词
轴向磁场/永磁电机/串联永磁/记忆电机/磁通切换Key words
axial flux/permanent magnet machine/series permanent magnet/memory machine/flux-switching分类
信息技术与安全科学引用本文复制引用
李念,林明耀,杨公德,孔永,徐妲..串联永磁轴向磁场磁通切换记忆电机设计与调磁特性分析[J].中国电机工程学报,2017,37(21):6190-6197,8.基金项目
国家自然科学基金项目(5651277025,51577024).Project Supported by National Natural Science Foundation of China (5651277025,51577024). （5651277025,51577024）
