Title :
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
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;
Journal_Title :
Industry Applications, IEEE Transactions on
DOI :
10.1109/TIA.2008.2009493
