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
收藏
页码：55 / 63
页数：9
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