Performance investigation of multi-tooth flux-switching PM linear motor

Author

Cai, Jiongjiong ; Lu, Qinfen ; Jin, Yong ; Chen, Chuanyin ; Ye, Yunyue

Author_Institution

Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China

fYear

2011

fDate

20-23 Aug. 2011

Firstpage

1

Lastpage

6

Abstract

Based on finite element (FE) model, the back-EMF, thrust ripple, thrust force and thrust force-current density characteristics of the multi-tooth flux-switching permanent magnet (FSPM) linear motor are analyzed and compared with those of the conventional FSPM linear motor. Optimal parameters of both stator and mover teeth are further discussed focusing on thrust ripple and thrust force. Finally, performance comparisons between two FSPM linear motors with different end shapes are made. It is found that the structure with two-tooth end is more desirable. It shows that the FSPM linear motor with multi-tooth structure can not only decrease half number of permanent magnets, but also output high thrust force at low current density with small thrust ripple.

Keywords

finite element analysis; linear motors; permanent magnet motors; switchgear; PM linear motor; finite element model; multi tooth flux switching permanent magnet linear motor; thrust force current density characteristics; thrust ripple; Current density; Force; Forging; Permanent magnet motors; Stators; Synchronous motors; Traction motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2011 International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4577-1044-5

Type

conf

DOI

10.1109/ICEMS.2011.6073745

Filename

6073745