Research on magnetic force characteristics of the controlled-PM Maglev linear synchronous motor with finite element method

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part I

Article type: Research Article

Authors: Du, Yumei^{a; *} | Jin, Nengqiang^a | Shi, Liming^a

Affiliations: [a] Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing, China

Correspondence: [*] Corresponding author: Yumei Du, P.O. Box 2703, Beijing, China, 100190. Tel.: +86 10 82547067; Fax: +86 10 82547065; E-mail: ymdu@mail.iee.ac.cn

Abstract: A controlled-PM Maglev system with permanent magnets and electromagnets excitation together can improve the lift/weight ratios, and reduce electromagnetic power consumption at the same air gap compared with a conventional electromagnetic attractive levitation system. It has been proved to be a very effective approach with great potential for application in magnetic levitation system. This paper analyses the magnetic force characteristics of linear synchronous motor in a controlled-PM maglev model vehicle system in our lab with finite element method (FEM), presents the relationship between the magnetic forces and air gap at different current excitation, thrust-angle performance, and experiment results.

Keywords: Linear synchronous motors, controlled-PM Maglev, hybrid maglev, magnetic force, FEM

DOI: 10.3233/JAE-2010-1185

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 1-2, pp. 777-784, 2010