Evaluation of torque ripple in high performance synchronous reluctance machines

Author

Fratta, A. ; Troglia, G.P. ; Vagati, A. ; Villata, F.

Author_Institution

Dipartimento di Ingegneria Elettrica Ind., Politecnico di Torino, Italy

fYear

1993

fDate

2-8 Oct 1993

Firstpage

163

Abstract

Synchronous reluctance motors with multiple-segment rotor structures are considered. The presence of stator slots is taken into account with respect to torque ripple. An analytical model is presented, based on magnetic interaction between d and q axes, due to stator toothing. The effect of skewing is also considered. Its partial effect on torque ripple reduction due to the rotor anisotropy is shown. A closed expression for the torque is obtained, giving the torque ripple as a function of design parameters. Experimental verification of the proposed model is given based on measurements on prototype motors

Keywords

machine theory; reluctance motors; rotors; stators; torque; anisotropy; closed expression; design; machine theory; magnetic interaction; motors; multiple-segment rotor; performance; skewing; stator slots; synchronous reluctance machines; toothing; torque ripple; Analytical models; Anisotropic magnetoresistance; Magnetic anisotropy; Perpendicular magnetic anisotropy; Prototypes; Reluctance motors; Rotors; Stators; Synchronous motors; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-1462-X

Type

conf

DOI

10.1109/IAS.1993.298919

Filename

298919