Interaction Effects of PM Tolerances and Rotor Eccentricities on Cogging Torque of 12-slot/10-pole PM Machines

被引：1
|
作者：
Xiang, Dong [1 ]
Zhu, Z. Q. [1 ]
Liang, Dawei [1 ]
Wu, Yuehong [2 ]
Xu, Fei [2 ]
Cheng, Yunfeng [2 ]
机构：
[1] Univ Sheffield, Dept Elect & Elect Engn, Sheffield S1 3JD, England
[2] Midea Elect Machines & Control Syst R&D Ctr, Shanghai 201210, Peoples R China
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2024年 / 60卷 / 05期
关键词：
Rotors; Forging; Torque; Air gaps; Stators; Remanence; Finite element analysis; 12-slot/10-pole PM machine; cogging torque; finite element method; PM tolerances; rotor eccentricities; DESIGN TECHNIQUES; MOTORS; MINIMIZATION; REDUCE;
D O I：
10.1109/TIA.2024.3400945
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper investigates the interaction effects of permanent magnet (PM) tolerances and rotor eccentricities of 12-slot/10-pole PM machines by finite element method (FEM) and phasor analysis. It is found that the relative location between diversified PMs and eccentric rotor have a significant effect on cogging torque. (a) When a weak (e.g., thin thickness) PM is close to the minimum airgap, rotor static eccentricity and PM tolerances have a strengthening effect to deteriorate cogging torque, but rotor dynamic eccentricity and PM tolerances have a weakening effect to reduce cogging torque. (b) When a strong (e.g., thick thickness) PM is close to the minimum airgap, rotor static/dynamic eccentricity and PM tolerances always have a strengthening effect to deteriorate cogging torque. The experiments verify the FEM-predicted cogging torques and the interaction effects between PM tolerances and rotor eccentricities on cogging torque in the 12-slot/10-pole PM machine.
引用
收藏
页码：6648 / 6659
页数：12
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