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

页码：6648 / 6659

页数：12