Cogging Torque Cancellation by Magnet Shaping in Surface-Mounted Permanent-Magnet Motors

被引：20

作者：

Simon-Sempere, Vicente ^{[1
]}

Burgos-Payan, Manuel ^{[1
]}

Cerquides-Bueno, Jose-Ramon ^{[2
]}

机构：

[1] Univ Seville, Elect Engn Dept, Seville, Spain

[2] Univ Seville, Signal Theory & Commun Dept, Seville, Spain

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2017年 / 53卷 / 07期

关键词：

Cogging torque; energy method; magnet shape; surface-mounted permanent-magnet motors; BRUSHLESS MOTORS; WAVE-FORMS; DESIGN; REDUCE;

D O I：

10.1109/TMAG.2017.2676090

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 a new method for cancellation cogging torque by magnet shaping. First, the conditions to be met by the induction space wave for the total cancellation of cogging torque are analytically established. These results are then used to determine the shape of the magnets. The approach followed is inverse to that used by traditional methods, whereby, based on a predetermined shape of the magnets, the cogging torque is calculated. As a result, the proposed method enables optimum results to be obtained directly and it is generalizable to any motor configuration. The methodology has been first validated by means of finite elements and then tested experimentally on a dc motor and on an ac motor for both radial and parallel magnetization.

引用

页数：7

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