Reducing the cogging torque in brushless DC motors by using conformal mappings

被引：69

作者：

Markovic, M ^{[1
]}

Jufer, M ^{[1
]}

Perriard, Y ^{[1
]}

机构：

[1] Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2004年 / 40卷 / 02期

关键词：

brushless DC motors; magnetic fields; permanent-magnet motors; torque;

D O I：

10.1109/TMAG.2004.824111

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：

We present an exact model for determining the cogging torque in a brushless; DC (BLDC) motor. It is based on the conformal mapping (CM) method, by which the motor configuration is transformed to a configuration where the magnetic field can be determined. Then, by integrating the field over the stator surface, the cogging torque is determined. By varying some motor parameters, which is easy to do, an optimal configuration with the minimal cogging torque is obtained. We have confirmed the results by the finite-element method (FEM). The model produces results much faster than FEM alone.

引用

页码：451 / 455

页数：5

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