Torque Analysis in Permanent-Magnet Synchronous Motors: A Comparative Study

被引：113

作者：

Guemes, J. A. ^{[1
]}

Iraolagoitia, A. M. ^{[1
]}

Del Hoyo, J. I. ^{[1
]}

Fernandez, P. ^{[2
]}

机构：

[1] Univ Basque Country, Dept Elect Engn, Bilbao 48012, Spain

[2] Univ Basque Country, Elect & Telecommun Dept, Bilbao 48012, Spain

来源：

IEEE TRANSACTIONS ON ENERGY CONVERSION | 2011年 / 26卷 / 01期

关键词：

Cogging torque; fractional-slot windings; magnet skewing (step-skew); permanent magnet synchronous motors (PMSMs); torque ripple; COGGING-TORQUE; RIPPLE MINIMIZATION; REDUCTION; MACHINES; DESIGN;

D O I：

10.1109/TEC.2010.2053374

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：

This paper examines the torque ripple and cogging-torque variation in permanent-magnet synchronous motors (PMSMs). The effect of slot number and magnet skewing on electromagnetic motor torque, has been analyzed in different 20-pole, three-phase, PMSM configurations having the same envelop dimensions and output requirements. Finite-element technique is used for machine characteristics computation. Maxwell-stress tensor is used to find torque. Finite-element analysis results show that: 1) motors with fractional-slot winding have lower torque ripple but show a reduction of the average torque and 2) in step-skew magnet motors, torque-ripple reduction is significant only for a certain step number and magnet-skew angle.

引用

页码：55 / 63

页数：9

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