Brushless Wound Rotor Vernier Motor Using Single-phase Additional Winding on Stator for Variable Speed Applications

This paper introduces a topology for achieving the brushless operation of wound rotor vernier motor using single-phase additional winding on stator, specifically designed variable-speed applications e.g., washing machines. In proposed topology, stator consists two sets: four-pole three-phase main and an two-pole winding. On other hand, contains 44-pole field to generate effect, excitation induction. The produces fundamental component MMF, while generates subharmonics MMF induce current in rotor. is connected rotating rectifier supply direct rotor’s interaction responsible production torque. presence subharmonic air gap confirmed through Fourier analysis obtained from function. Moreover, validated 2D finite element (FEM) variable speed application.