Effect of double-triple winding layout on axially-laminated anisotropic rotor synchronous reluctance motors

Abstract

This paper deals with the effect of the combination of double and triple layer (DTL) winding configurations on axially laminated anisotropic (ALA) rotor synchronous reluctance motors. Three ALA rotor shapes are opted in this paper to evaluate the airgap flux density, torque average and torque ripple contents. The stator geometry of a 4-pole, 1.5 kW, conventional three-phase squirrel cage induction motor, having 36 slots is used. 2-D Finite Element Method (FEM) is utilized to analyse the performance of the machines. From the FEM results, it evidenced that DTL winding configuration reduced the airgap flux density Total Harmonic Distortion (THD), improved torque average and dropped the torque ripple contents in all three ALA rotor synchronous reluctance motors.