Improvement Torque Performances of Interior Permanent-Magnet Machines

作     者：Junqiang Zheng Wenxiang Zhao Christopher H.T.Lee Jinghua Ji Gaohong Xu 

作者机构：School of Electrical and Information EngineeringJiangsu UniversityZhenjiang 212013China School of Electrical and Electronic EngineeringNanyang Technological UniversitySingapore 

出 版 物：《CES Transactions on Electrical Machines and Systems》 (中国电工技术学会电机与系统学报（英文）)

年 卷 期：2019年第3卷第1期

页      面：12-18页

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：This work was supported by the Key Research and Development Program of Jiangsu Province(BE2018107) by the Six Talent Peaks Project of Jiangsu Province(2017-KTHY-011) by the Graduate Scientific Research Innovation Project of Jiangsu Province(KYCX18_2248) 

主　　题：Flux weakening finite-element analysis(FEA) interior permanent-magnet brushless machine reluctance torque inductance. 

摘      要：Due to their excellent efficiency,power density and constant power speed region,interior permanent-magnet(IPM)machines are very suitable for electric vehicles(EVs).This paper proposed a new IPM rotor topology,which can offer high reluctance torque,wide constant power speed range and excellent overload ***,five rotor topologies with integral-slot distributed-windings IPM machines,including four existing IPM topologies and the proposed IPM topology,are designed *** characteristics,which include d-q axis inductances,saliency ratios,electromagnetic torques,corresponding torque ripples,back-electromotive forces(EMFs),overload capabilities and flux weakening performances are evaluated ***,a three phase 48s8p hybrid rotor PM machine is built to verify the performances of the proposed IPM *** work provides some general concepts for machine developers who are willing to build IPM machines for high-performance EV applications.