Additional Cogging Torque Components in Permanent-Magnet Motors Due to Manufacturing Imperfections

被引：120
|
作者：
Gasparin, Lovrenc [1 ]
Cernigoj, Andrej [1 ]
Markic, Stojan [1 ]
Fiser, Rastko [2 ]
机构：
[1] Iskra Avtoelekt DD, Sempeter Pri Gorici 5290, Slovenia
[2] Univ Ljubljana, Fac Elect Engn, Ljubljana 1000, Slovenia
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2009年 / 45卷 / 03期
关键词：
Cogging torque; magnetic analysis; manufacturing issues; permanent-magnet machines; BRUSHLESS DC MOTOR; DESIGN;
D O I：
10.1109/TMAG.2009.2012561
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents issues for reducing cogging torque of permanent-magnet motors. When proper methods are employed, it is theoretically possible to minimize its level or even to eliminate it. FFT analyses of cogging torque in mass-produced motors have shown additional harmonic components, which are in tight correlation with assembly tolerances and/or permanent-magnet imperfections. Finite element method has been used to study the sensitivity of different motor models relative to manufacturing tolerances and to determine rules for detecting imperfections in mass-production.
引用
收藏
页码：1210 / 1213
页数：4
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