Analytical approach to cogging torque calculation of PM brushless motors

被引：95
|
作者：
Gieras, JF [1 ]
机构：
[1] United Technol Res Ctr, E Hartford, CT 06108 USA
来源：
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2004年 / 40卷 / 05期
关键词：
AC motors; brushless motors; cogging torque; magnetic flux density; permanent-magnet (PM) machines; PM motors; stator slots; torque ripple;
D O I：
10.1109/TIA.2004.834108
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper discusses the approach to analytical calculation of the cogging torque in permanent-magnet (PM) brushless motors. Magnetic field energy in the air gap has been used to obtain the cogging torque equations. Two equations have been derived: with the PM circumferential width taken into account, and a simplified equation, i.e., without the effect of the finite width of the PM. The effect of eccentricity has also been included. Calculation results have been compared with laboratory test results.
引用
收藏
页码：1310 / 1316
页数：7
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