Improvement of electric motor thrust by three-dimensional magnetic pole structure

被引：0
|
作者：
Hayashi S. [1 ]
Hashimoto H. [1 ]
Tokuyama T. [1 ]
Matsumoto T. [1 ]
Miyazaki T. [1 ]
机构：
[1] Kobe Steel Ltd., Electric and Magnetic Control Research Section, Applied Physics Research Laboratory, Technical Development Group, 1-5-5, Takatsuka-dai, Nishi-ku, Kobe, Hyogo
来源：
IEEJ Transactions on Industry Applications | 2019年 / 139卷 / 07期
关键词：
High thrust; Linear moter;
D O I：
10.1541/ieejias.139.645
中图分类号：
学科分类号：
摘要：
In a linear motor which is used in various industrial applications, improvement of thrust density to minimize instrument size is desired. This paper presents a structure to increase the magnetic flux generated from a permanent magnet by three-dimensionally configuring magnetic poles. We constructed an analytical model of a cylindrical-type linear motor with the developed magnetic pole structure and compared the general SPM (Surface Permanent Magnet) structure with the permanent magnet quantity. As a result, the magnetic flux linkage of the developed model increased to about twice that of the comparison model. For this reason, it was confirmed by analyzing that the thrust increases to about twice that of the comparison model by increasing the air gap magnetic flux density without increasing the surface contributing to the generation of the force and the volume of the electric motor. © 2019 The Institute of Electrical Engineers of Japan.
引用
收藏
页码：645 / 651
页数：6
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