Theoretical characterization of flux reversal machine in low-speed servo drives-the pole-PM configuration

Author

Boldea, Ion ; Zhang, Jichun ; Nasar, Syed A.

Author_Institution

Dept. of Electr. Machines & Drives, Univ. Politehnica of Timisoara, Romania

Volume

38

Issue

6

fYear

2002

Firstpage

1549

Lastpage

1557

Abstract

This paper introduces and analyzes a flux reversal machine (FRM) configuration for low-speed (below 150 r/min) servo drives. The FRM configuration includes stator poles with three-phase concentrated coils and 2n_p alternate polarity permanent magnets per stator pole and a salient multiple-pole passive rotor. In-depth finite-element method analysis shows high torque density and less than 3% torque pulsation (through adequate rotor skewing) with sinusoidal three-phase vector control.

Keywords

AC motor drives; finite element analysis; inductance; machine theory; magnetic flux; permanent magnet motors; rotors; servomotors; stators; torque; 2n_p alternate polarity permanent magnets; adequate rotor skewing; finite-element method analysis; flux reversal machine; high torque density; inductance calculation; low-speed servo drives; salient multiple-pole passive rotor; sinusoidal three-phase vector control; stator pole; stator poles; three-phase concentrated coils; AC motors; Coils; Electric machines; Magnetic analysis; Magnetic flux; Reluctance motors; Rotors; Servomechanisms; Shipbuilding industry; Stators;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2002.804759

Filename

1058109