Accurate Modeling and Performance Analysis of IPM-PMASR Motors

Author

Armando, Eric ; Guglielmi, Paolo ; Pellegrino, Gianmario ; Pastorelli, Michele ; Vagati, Alfredo

Author_Institution

Dept. of Electr. Eng., Politec. di Torino, Turin

Volume

45

Issue

1

fYear

2009

Firstpage

123

Lastpage

130

Abstract

Modern interior permanent magnet motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behavior. In this paper, the flux-current relationship of such motors is analyzed, and a simplified but effective model of the cross-saturation phenomenon is proposed and verified by experiment. In addition, new flux variables are introduced that allow a rigorous splitting of permanent-magnet (PM) and reluctance torques. It is shown that the PM contribution to torque is larger than expected from the PM no-load flux. This can lead to more accurate machine design and control strategies.

Keywords

permanent magnet motors; reluctance motors; rotors; IPM-PMASR motors; control strategies; cross-saturation phenomenon; interior permanent magnet motors; machine design; multiple flux-barrier rotor structure; permanent magnet and synchronous reluctance motors; Anisotropic magnetoresistance; Induction motors; Magnetic anisotropy; Performance analysis; Permanent magnet motors; Perpendicular magnetic anisotropy; Reluctance motors; Rotors; Sensorless control; Synchronous motors; Interior permanent-magnet (IPM) motors; permanent-magnet (PM) electrical machines; synchronous reluctance motors;

fLanguage

English

Journal_Title

Industry Applications, IEEE Transactions on

Publisher

ieee

ISSN

0093-9994

Type

jour

DOI

10.1109/TIA.2008.2009493

Filename

4757378