Analysis of the reduction of detent force in a permanent magnet linear synchronous motor

Author

Yoshimura, T. ; Kim, H.J. ; Watada, M. ; Torii, S. ; Ebihara, D.

Author_Institution

Dept. of Electr. & Electron. Eng., Musashi Inst. of Technol., Tokyo, Japan

Volume

31

Issue

6

fYear

1995

fDate

11/1/1995 12:00:00 AM

Firstpage

3728

Lastpage

3730

Abstract

The problem in improving the positioning precision of a permanent magnet linear synchronous motor (LSM) is the large detent force caused by the permanent magnet. The detent force is thought to arise from the difference of the position of a permanent magnet end and a tooth position. If one detent force is independent from the other, we can reduce the total detent force of the permanent magnet linear synchronous motor by the arrangement of a permanent magnet end and a tooth. This paper presents are improvement of the arrangement of the permanent magnet end of a linear synchronous motor in order to reduce the detent force by using numerical analysis

Keywords

finite element analysis; linear synchronous motors; machine theory; numerical analysis; permanent magnet motors; detent force reduction; finite element method; numerical analysis; permanent magnet linear synchronous motor; positioning precision; tooth position; DC motors; Force measurement; Induction motors; Large-scale systems; Magnetic analysis; Permanent magnet motors; Permanent magnets; Pulsed power supplies; Synchronous motors; Teeth;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.489752

Filename

489752