Examination for a Hybrid Excitation Motor with Reverse Saliency while Having a Field Winding on a Rotor

This paper proposes a hybrid excitation motor (HEM) with reverse saliency while having a field winding on a rotor. In addition to utilizing reluctance torque, this HEM with reverse saliency aims to reduce the cost of the inverter by improving power factor and to cancel the cost increased by the field winding power supply and the slip ring. By means of 2-D finite element analysis (2D-FEA), it becomes clear that the proposed motor has good characteristics as a traction motor.