盘式永磁电机齿槽转矩的分析与抑制

作者：周俊杰，范承志，叶云岳 日期：2009-02-23/span> 浏览：4150 查看PDF文档

盘式永磁电机齿槽转矩的分析与抑制

周俊杰，范承志，叶云岳
（浙江大学 电气工程学院，浙江 杭州 310027）

摘要：在对用于油田抽油机的大力矩低速盘式永磁电机的研究过程中，为削弱齿槽效应所引起的转矩波动，采用了一种以有限元电磁场计算为基础的磁极尺寸优化设计方法，确定了采用磁极分段移位法时的最佳位移量，并通过优化分段磁钢的径向尺寸，实现了削弱齿槽转矩的目的。研究结果表明,该设计为大力矩低速盘式永磁电机设计提供了参考依据。
关键词：盘式永磁电机；齿槽转矩；有限元分析
中图分类号：TM351文献标识码：A文章编号：1001-4551(2009)02-0079-03

Cogging torque analysis and reduction of disc permanent magnet motors
ZHOU Jun-jie, FAN Cheng-zhi, YE Yun-yue
(College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China)
Abstract: The big-torque and low-speed disc permanent magnet motors were studied for the oil field pumping units. Aiming at reducing the cogging torque, a size-optimal design method was adopted based on finite element method(FEM) electromagnetic fields analysis. The best displacement was determined for the method of the rotor pole stacks shifting, and the pole stacks radial sizes were also optimized. The purpose of reducing cogging torque was achieved. The results indicate that a reference is provided for design of big-torque and low-speed disc permanent magnet motor.
Key words: disc permanent magnet motors; cogging torque; finite element method（FEM）
参考文献(References):
［1］CHANG S K, HEE S Y, KI W N, et al. Magnetic pole shape optimization of permanent magnet motor for reduction of cogging torque［J］. IEEE Transactions on Magnetics,1997,33(2):1822 -1827.
［2］付求涯，刘新才.永磁无刷直流电机齿槽转矩的最小化技术［J］.微特电机，2003(6)：10-12.
［3］罗宏浩，吴峻，常文森.动磁式永磁无刷直流直线电机的齿槽力最小化［J］.中国电机工程学报，2007，27(5)：12-16.
［4］潘开林，傅建中，陈子辰.永磁直线同步电机的磁阻力分析及其优化［J］.浙江大学学报:工学版，2005，39(10)：1056-1062.
［5］YANG Yu-bo, WANG Xiu-he, ZHANG Rong, et al. The optimization of pole arc coefficient to reduce cogging torque in surface-mounted permanent magnet motors［J］. IEEE Transactions on Magnetics,2006,42(4):1135-1138.
［6］王秀和.永磁电机［M］.北京：中国电力出版社，2007.
［7］徐月同,傅建中,陈子辰.永磁直线同步电机推力波动优化及实验研究［J］.中国电机工程学报，2005,25(12)：122-126.