Analysis of a linear variable reluctance permanent magnet motor

Author

Liu, Pengtao ; Zhu, Jianguo

Author_Institution

Dept. of Electr. Eng., R. Melbourne Inst. of Technol. Univ., Vic., Australia

Volume

2

fYear

1999

fDate

1999

Firstpage

734

Abstract

Variable reluctance permanent magnet (VRPM) motors have a potential for direct drive applications due to their simple structures and high torque characteristics. This paper presents an analysis of a linear VRPM motor by using an equivalent magnetic circuit in conjunction with an electrical circuit. Based on the studies of the permeance pattern to conduct flux through the stator winding and its spatial harmonic distribution, the electrical circuit parameters, such as the self inductance of the stator winding and the induced EMF, and the static forces, such as the cogging force, the reluctance force and the electromagnetic reaction force, are derived analytically. The theoretical results are verified by experiments on a prototype

Keywords

equivalent circuits; force; inductance; linear synchronous motors; machine theory; magnetic circuits; permanent magnet motors; reluctance motors; stators; torque; cogging force; direct drive applications; electromagnetic reaction force; equivalent electrical circuit; equivalent magnetic circuit; flux conduction; induced EMF; linear variable reluctance permanent magnet motor; permeance pattern; reluctance force; self inductance; simple structure; spatial harmonic distribution; static forces; stator winding; torque characteristics; Electromagnetic forces; Electromagnetic induction; Forging; Inductance; Magnetic analysis; Magnetic circuits; Permanent magnet motors; Reluctance motors; Stator windings; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on

Print_ISBN

0-7803-5769-8

Type

conf

DOI

10.1109/PEDS.1999.792796

Filename

792796