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浙江大学学报(工学版)
J4  2010, Vol. 44 Issue (3): 544-549    DOI: 10.3785/j.issn.1008-973X.2010.03.024
电气工程     
内置永磁体双励磁直线同步电机的设计与优化
黄明星, 叶云岳, 刘壮
浙江大学 电气工程学院,浙江 杭州310027
Design and optimization of dual excitation linear synchronous motors with internally placed permanent magnets
HUANG Mingxing, YE Yunyue, LIU Zhuang
College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
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摘要：

针对磁浮列车现有的全电励磁直线同步电机悬浮力有限、励磁耗能多的不足,提出内置永磁体双励磁直线同步电机结构.详细介绍了该结构的构成和特点,对永磁体励磁部分和电励磁部分分别进行解析计算,并校核次级受力强度.对该电机进行有限元分析的建模,并求解出电机内的磁场分布情况.通过基于有限元方法求解出的空载悬浮力和空载漏磁系数的比较,优化电机的4个关键结构尺寸参数.将内置永磁体双励磁结构与全电励磁结构及另一种双励磁结构进行了对比分析,结果表明,这种结构的电机具有悬浮力较大、励磁耗能少、永磁体散热好等优点.
Abstract:

Dual excitation linear synchronous motors (LSM) with internally placed permanent magnets (PM) were proposed to overcome the shortcomings of electromagnetic excitation linear synchronous motors used in maglev trains, which include limited suspension force and more excitation energy. The structure and feature of this kind of linear motor were introduced. Then the parameters of permanent magnets and electromagnetic windings were analytically calculated, and the stress of secondary was checked. A finite element analysis model of the motor was built, and the distribution of magnetic field was solved. Four important dimensional parameters of the motor secondary were optimized through comparing the noload suspension force and the noload leakage coefficient that worked out with finite element method. Compared with an electromagnetic excitation motor and the other dual excitation motor, the proposed linear motor has some advantages, such as bigger suspension force, less excitation energy, better heatsinking capacity of permanent magnets.
出版日期: 2012-03-20
:  TM 359.4  
基金资助:

“十一五”国家科技支撑计划资助项目11504-QY-007).
通讯作者: 叶云岳,男,教授,博导.     E-mail: yeyunyu/e@yahoo.com.cn
作者简介: 黄明星1976—),男,江西玉山人,博士生,从事直线电机和新型永磁电机及其应用的研究.Email: minshing@163.com
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引用本文:

黄明星, 叶云岳, 刘壮. 内置永磁体双励磁直线同步电机的设计与优化[J]. J4, 2010, 44(3): 544-549.

HUANG Meng-Xing, XIE Yun-Yue, LIU Zhuang. Design and optimization of dual excitation linear synchronous motors with internally placed permanent magnets. J4, 2010, 44(3): 544-549.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2010.03.024    或    http://www.zjujournals.com/eng/CN/Y2010/V44/I3/544

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