Design of thrust ripple minimization by equivalent magnetizing current considering slot effect

Author

Lee, Dong-Yeup ; Kim, Gyu-Tak

Author_Institution

Dept. of Electr. Eng., Changwon Nat. Univ.

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

1367

Lastpage

1370

Abstract

This paper proposes the maximum thrust design of slotted permanent magnet linear synchronous motor (PMLSM) using equivalent magnetizing current method (EMCM) considering slot effect. The genetic algorithm is used for optimization. The objective functions are selected for the maximum thrust and the minimum detent force. In this paper, design parameters are set as permanent magnet (PM) width, PM height, and slot width. Thrust is increased from 272[N] to 295[N] and detent force is decreased from 5[N] to 2.43[N] greatly in optimum design. Therefore, most thrust ripple has not been generated. Also, the results of 2D EMCM considering slot effect are compared with ones of experimental and finite element analysis

Keywords

genetic algorithms; linear synchronous motors; minimisation; permanent magnet motors; equivalent magnetizing current; finite element analysis; genetic algorithm; permanent magnet linear synchronous motor; slot effect; thrust ripple minimization; Finite element methods; Genetic algorithms; Magnetic analysis; Permanent magnets; Position control; Rotors; Saturation magnetization; Stators; Synchronous motors; Teeth; EMCM; PMLSM; genetic algorithm; slot effect;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871927

Filename

1608469