Electromagnetic Performance Analysis of Variable Flux Memory Machines with Series-magnetic-circuit and Different Rotor Topologies  

作　　者：Qiang Wei Z.Q.Zhu Yan Jia Jianghua Feng Shuying Guo Yifeng Li Shouzhi Feng 

机构地区：[1]Department of Electronic and Electrical Engineering,The University of Sheffield,Sheffield S13JD,U.K. [2]IEEE [3]the CRRC Zhuzhou Institute Company Ltd.,Zhuzhou 412001,China

出　　处：《CES Transactions on Electrical Machines and Systems》2024年第1期3-11,共9页中国电工技术学会电机与系统学报（英文）

基　　金：supported by the CRRC Zhuzhou Institute Company Ltd.;and in part by Key R&D projects in Hunan;China;No.2022GK2062。

摘　　要：In this paper,the electromagnetic performance of variable flux memory(VFM)machines with series-magnetic-circuit is investigated and compared for different rotor topologies.Based on a V-type VFM machine,five topologies with different interior permanent magnet(IPM)arrangements are evolved and optimized under same constrains.Based on two-dimensional(2-D)finite element(FE)method,their electromagnetic performance at magnetization and demagnetization states is evaluated.It reveals that the iron bridge and rotor lamination region between constant PM(CPM)and variable PM(VPM)play an important role in torque density and flux regulation(FR)capabilities.Besides,the global efficiency can be improved in VFM machines by adjusting magnetization state(MS)under different operating conditions.

关 键 词：Memory machine Permanent magnet Rotor topologies Series magnetic circuit Variable flux 

分 类 号：TM30[电气工程—电机]