Slot opening displacement technique for cogging torque reduction of axial flux brushless DC motor for electric two-wheeler application

Introduction. Reduction of cogging torque is the crucial design consideration axial flux brushless DC (BLDC) motor, particularly for low-speed applications. Aim. The slot opening displacement technique presented in this article to reduce BLDC motors suitable electric two-wheeler Methods. Double rotor single stator configuration motor most such vehicular Initially double 250 W, 150 rpm designed with middle position and considered as reference further analysis. To evaluate profile 3D finite element modeling analysis are performed. enhanced by dividing all teeth into groups displacing openings each group opposite direction respect adjacent group. Results. influence on evaluated As reduced from 1.23 N×m 0.63 N×m, found be effective reducing motor.