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J4  2011, Vol. 45 Issue (10): 1836-1841    DOI: 10.3785/j.issn.1008-973X.2011.10.023
电气工程     
双边空心式永磁直线伺服电机的横向边缘效应
张玉秋1, 刘晓1, 叶云岳1, 金勇2
1. 浙江大学 电气工程学院, 浙江 杭州 310027;2. 浙江省质量技术监督检测研究院,浙江 杭州 310013
Transverse end-effect analysis of double side air-cored permanent
magnet linear servo motor
ZHANG Yu-qiu1, LIU Xiao1, YE Yun-yue1, JIN Yong2
1. College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; 2. Zhejiang Bureau of
Quality and Technical Supervision, Hangzhou 310013, Zhejiang Province, China
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摘要:

针对双边空心式永磁直线伺服电机横向边缘效应较大,会影响气隙磁场分布、使空载反电势和推力幅值减小的问题,研究量化横向边缘效应影响的方法.定义横向漏磁系数,通过将该电机三维有限元和二维有限元气隙磁场的分析结果进行对比,推导出横向漏磁系数的计算公式.该系数主要受电机横向长度、气隙高度和永磁体厚度的影响,可对二维有限元结果进行修正.实测结果表明,修正后的二维有限元结果更加接近实测值,证明了该方法的正确性和有效性.

Abstract:

The double side air-cored permanent magnet linear servo motor (PMLSM) has larger transverse endeffect which will affect the air-gap magnetic field, no-load back electromotive force (EMF) and thrust. A flux leakage coefficient was defined to quantify the end-effect, and the calculation method of the coefficient was obtained through the comparison of the flux density predicted from twodimensional and threedimensional finite element analysis. The coefficient was mainly affected by motor’s transverse length, airgap length and magnet thickness, and can be used to modify the twodimensional predicted results. The revised results accorded well with the actual values, which proved the correctness and validity of the method.

出版日期: 2011-10-01
:  TM 351  
基金资助:

国家自然科学基金资助项目(50905160).

通讯作者: 刘晓,男,讲师.     E-mail: mrliuxiao@yahoo.com.cn
作者简介: 张玉秋(1986—),女,博士生,从事永磁直线电机设计的研究.E-mail:tangshanzyq@yahoo.cn
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引用本文:

张玉秋, 刘晓, 叶云岳, 金勇. 双边空心式永磁直线伺服电机的横向边缘效应[J]. J4, 2011, 45(10): 1836-1841.

ZHANG Yu-qiu, LIU Xiao, YE Yun-yue, JIN Yong. Transverse end-effect analysis of double side air-cored permanent
magnet linear servo motor. J4, 2011, 45(10): 1836-1841.

链接本文:

https://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.10.023        https://www.zjujournals.com/eng/CN/Y2011/V45/I10/1836

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