Investigation of Optimal Split Ratio of 6-Slot/2-pole High Speed Permanent Magnet Motor with Toroidal Winding

作     者：F.Xu T.R.He Z.Q.Zhu H.Bin D.Wu L.M.Gong J.T.Chen F.Xu;T.R.He;Z.Q.Zhu;H.Bin;D.Wu;L.M.Gong;J.T.Chen

作者机构：the University of SheffieldDepartment of Electronic and Electrical EngineeringMappin StreetSheffieldS13JDUK IEEE Motors and Drives CenterMidea Group Corporate Research CenterShanghai200131China 

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：2022年第6卷第4期

页      面：343-351页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

主　　题：High speed Optimal split ratio Permanent magnet motor Slot ratio Toroidal winding 

摘      要：Split ratio,*** ratio of stator inner diameter to outer diameter,has a closed relationship with electromagnetic performance of permanent magnet(PM)*** this paper,the toroidal windings with short end-winding axial length are employed in the 6-slot/2-pole(6s/2p)PM motor for high speed *** split ratio is optimized together with the ratio of inner slot to outer slot area,*** ratio,considering stator total loss(stator iron loss and copper loss).In addition,the influence of maximum stator iron flux density and tooth-tip on the optimal split ratio,slot ratio,and average torque is *** analytical predictions show that when the slot ratio is 0.5,the maximum torque can be achieved,and the optimal split ratio increases with the decrease of slot ratio,as confirmed by the finite element(FE)***,some of predicted results are verified by the measured results of 6s/2p prototype motor with 0.5 slot ratio.