Accurate Magnetic Modelling and Performance Analysis of IPM-PMASR Motors

Author

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

Author_Institution

Politecnico di Torino, Turin

fYear

2007

Firstpage

133

Lastpage

140

Abstract

Modern IPM motors, suited to large constant-power speed ranges, have a multiple flux-barrier rotor structure and show a quite complex magnetic behaviour. In this paper the flux-current relationship of such motors is analysed 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 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

machine control; magnetic flux; permanent magnet motors; reluctance motors; torque; IPM-PMASR motor performance analysis; PM assisted synchronous reluctance motor; cross-saturation phenomenon; flux-current relationship; interior permanent magnet motors; machine control; machine design; magnetic modelling; reluctance torques; Anisotropic magnetoresistance; Magnetic anisotropy; Magnetic flux; Performance analysis; Permanent magnet motors; Perpendicular magnetic anisotropy; Reluctance motors; Rotors; Sensorless control; Synchronous motors;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2007. 42nd IAS Annual Meeting. Conference Record of the 2007 IEEE

Conference_Location

New Orleans, LA

ISSN

0197-2618

Print_ISBN

978-1-4244-1259-4

Electronic_ISBN

0197-2618

Type

conf

DOI

10.1109/07IAS.2007.29

Filename

4347778