Cogging force reduction in permanent magnet linear motor using phase set shift

Author

Lim, Jaewon ; Jung, Hyun-Kyo

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., Seoul

fYear

2008

fDate

6-9 Sept. 2008

Firstpage

1

Lastpage

4

Abstract

This paper describes the reduction method of cogging force in a linear motor. To decrease the cogging force, the method of phase set shift is presented with considering linear combination characteristics of cogging force. It is figured out that period of cogging force has relation with greatest-common-divisor (GCD) of pole pitch and teeth pitch. It is also verified that phase set shift has similar effect with stator skewing. The cogging and thrust force characteristics of linear planar motor are calculated by using finite element method.

Keywords

finite element analysis; linear motors; permanent magnet motors; stators; cogging force reduction; finite element method; greatest-common-divisor; linear planar motor; permanent magnet linear motor; phase set shift; pole pitch; stator skewing; teeth pitch; Computer science; Finite element methods; Forging; Fourier series; Magnetic analysis; Magnetic cores; Permanent magnet motors; Planar motors; Stator cores; Teeth;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines, 2008. ICEM 2008. 18th International Conference on

Conference_Location

Vilamoura

Print_ISBN

978-1-4244-1735-3

Electronic_ISBN

978-1-4244-1736-0

Type

conf

DOI

10.1109/ICELMACH.2008.4800188

Filename

4800188