Rotor Shaping Method for Torque Ripple Mitigation in Variable Flux Reluctance Machines

被引：23

作者：

Huang, L. R. ^{[1
]}

Feng, J. H. ^{[2
]}

Guo, S. Y. ^{[2
]}

Li, Y. F. ^{[2
]}

Shi, J. X. ^{[2
]}

Zhu, Z. Q. ^{[1
]}

机构：

[1] Univ Sheffield, Elect Machines & Drives Grp, Sheffield S1 3JD, S Yorkshire, England

[2] CRRC Zhuzhou Inst Co Ltd, Zhuzhou 412001, Peoples R China

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2018年 / 33卷 / 03期

关键词：

Average torque; rotor shaping; torque ripple; variable flux reluctance machine (VFRM); ARMATURE CURRENT CONTROL; INTEGRATED FIELD; MOTOR; STATOR; OPTIMIZATION; DESIGN;

D O I：

10.1109/TEC.2018.2829493

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In this paper, four rotor shaping methods, i.e., eccentric circular, inverse cosine, inverse cosine with third harmonic, and multi-step shaping methods, are developed and compared for torque ripple mitigation in variable flux reluctance machines (VFRMs). By using a 6-stator-pole/7-rotor-pole (6/7) VFRM as an example, the design criterions and capabilities of these four methods are illustrated. It is found that all the rotor shaping methods are capable of torque ripple mitigation and applicable to all the VFRMs except those with 6k/(6i +/- 2) k (k, i = 1, 2, 3...) stator/rotor pole combinations. Moreover, the inverse cosine with third harmonic and multi-step shaping methods are found to have the best performance. They are able to reduce the torque ripple by 90% at a cost of only 3% torque density reduction. A 6/7 VFRM with both conventional and shaped rotors is prototyped and tested for verification.

引用

页码：1579 / 1589

页数：11

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