Cogging Torque Reduction in External-rotor Permanent Magnet Torque Motor Based on Different Shape of Magnet

被引：0

作者：

Li, Zhen ^{[1
,2
]}

Chen, Jin-hua ^{[2
]}

Zhang, Chi ^{[2
]}

Liu, Liang ^{[1
]}

Wang, Xuezhen ^{[1
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Key Lab Robot & Intelligent Mfg Equipmen, Ningbo, Zhejiang, Peoples R China

[2] Shanghai Univ, Sch Mechatron Engn & Automat, Shanghai, Peoples R China

来源：

2017 IEEE INTERNATIONAL CONFERENCE ON CYBERNETICS AND INTELLIGENT SYSTEMS (CIS) AND IEEE CONFERENCE ON ROBOTICS, AUTOMATION AND MECHATRONICS (RAM) | 2017年

关键词：

external-rotor permanent magnet torque motor; cogging torque; permanent magnet shapes;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The external-rotor permanent magnet torque motor is widely used in electric vehicles and mobile robots. In order to improve its working accuracy, the cogging torque needs to be reduced. Cogging torque results from the interaction of permanent magnet magnetomotive force harmonics and air-gap permeance harmonics due to slotting. In this paper, the finite element analysis (FEA) has been conducted on the external-rotor surface-mounted permanent magnet motor. Cogging torque can be reduced by optimizing the shape of the permanent magnet (PM) according to the theoretical analysis. And three types of PM pole shape are adopt to reduce the cogging torque. By optimizing the dimension parameters of PMs, each of these three shapes can reduce the cogging torque effectively.

引用

页码：304 / 309

页数：6

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