Effect of Permanent Magnet Rotor Design on PMSM Properties

The paper is focused on the permanentmagnet location and shape investigation in PMSM. At first,the real PMSM has been modeled by means of FEM whichhas been verified by experiments. Next step was a creatingof two new models with different position of PM: one withsurface mounted PM and other one with inset PM. The PMvolume and quality have been in all models kept constant .The main goal of this paper is to investigate the influence ofthe PM design on PMSM properties such as torque ripple,maximum torque, EMF, stator current and winding losses.The investigation has shown, that PM surface design canimprove PMSM properties