Comparative study of thrust of U-shaped ironless permanent magnet synchronous linear motor based on analytical method and finite element analysis

Issue title: Selected papers from the International Symposium on Applied Electromagnetics and Mechanics - ISEM 2019

Guest editors: Jinhao Qiu, Ke Xiong and Hongli Ji

Article type: Research Article

Authors: Yang, Zhihui^a | Liu, Ren^b | Xia, Bin^a;

Affiliations: [a] School of Electrical Engineering, Shenyang University of Technology, Shenyang, Liaoning, China | [b] Guizhou Aerospace Linquan Motor Co., Ltd, Guiyang, Guizhou, China

Correspondence: [*] Corresponding author: Bin Xia, School of Electrical Engineering, Shenyang University of Technology, No. 111, Shenliao West Road, Shenyang Economy & Technology Zone, Shenyang, Liaoning, China. E-mail: tiandixiabin@163.com

Abstract: Due to the large transverse edge effect for U-shaped ironless permanent magnet synchronous linear motor affect the distribution of air gap magnetic field is large, it will reduce the no-load back electromotive force and thrust. This paper proposes a novel method to evaluate the effect of transverse edge effect based on Kriging surrogate model. By comparing the results of the two-dimensional and three-dimensional finite element analysis of the air gap magnetic field of the motor, it can be seen transverse length of the motor, air gap height and thickness of the permanent magnet are the main influencing factors.

Keywords: Finite element analysis, U-shaped ironless permanent magnet synchronous linear motor, transverse edge effect

DOI: 10.3233/JAE-209425

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 64, no. 1-4, pp. 1091-1101, 2020