Title :
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
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;
Journal_Title :
Industry Applications, IEEE Transactions on
