Improved analysis of a bearingless switched reluctance motor

Author

Takemoto, Masatsugu ; Suzuki, Hitoshi ; Chiba, Akira ; Fukao, Tadashi ; Rahman, M. Azizur

Author_Institution

Dept. of Electr. & Electron. Eng., Tokyo Inst. of Technol., Japan

Volume

37

Issue

1

fYear

2001

Firstpage

26

Lastpage

34

Abstract

Bearingless switched reluctance motors, which can control rotor radial positions with magnetic force, have been proposed. Bearingless switched reluctance motors have combined characteristics of switched reluctance motors and magnetic bearings. Production of radial force for rotor shaft magnetic suspension is explained with differential stator windings. Mathematical relations between motor currents and radial force are derived by considering cross coupling and fringing fluxes. Theoretical relationships are verified with experimental results at partial overlap positions

Keywords

finite element analysis; machine control; machine theory; magnetic forces; position control; reluctance motors; rotors; stators; bearingless switched reluctance motor; cross coupling; differential stator windings; finite element analysis; fringing fluxes; magnetic force; motor currents; partial overlap positions; radial force production; rotor radial positions control; rotor shaft magnetic suspension; Force control; Magnetic analysis; Magnetic forces; Magnetic levitation; Magnetic switching; Production; Reluctance motors; Rotors; Shafts; Stator windings;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/28.903123

Filename

903123