Electromagnetic Normal Force Characteristics of a Permanent Magnet Linear Synchronous Motor with Double Primary Side

Author

Sung-An Kim ; Yu-Wu Zhu ; Sang-Geon Lee ; Saha, Simanto ; Yun-Hyun Cho

Author_Institution

Dept. of Electr. Eng., Dong-A Univ., Busan, South Korea

Volume

50

Issue

1

fYear

2014

fDate

Jan. 2014

Firstpage

1

Lastpage

4

Abstract

The large normal force of the permanent magnet linear synchronous motor (PMLSM) is caused by the PM group shifting. This is the significant drawback which will deteriorate the performance of the drive system in high-precision applications. In the optimization design process, when the PM group shifting length is not zero the normal force will be changed into a pulsation curve with large amplitude. To solve this problem, this paper proposes that the PMLSM is divided into two symmetrical PMLSMs. The effectiveness of this proposed structure is verified by the simulation and experiment according to the comparison of the electromagnetic force characteristics between the conventional and proposed structures.

Keywords

linear synchronous motors; optimisation; permanent magnet motors; PM group shifting; PMLSM; double primary side; electromagnetic normal force reduction; optimization design process; permanent magnet linear synchronous motor; pulsation curve; Elevators; Force; Magnetic cores; Mathematical model; Optimization; Permanent magnets; Synchronous motors; Detent force; normal force; permanent magnet linear synchronous motor (PMSLM); thrust force;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2013.2278397

Filename

6692913