Title :
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
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;
Conference_Titel :
Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-1462-X
DOI :
10.1109/IAS.1993.298919
