Design of a PM Vernier machine with concentrated winding aimed at a direct drive in Wheel operating for Electric bus

Permanent magnet Vernier machine (PMVM) can constitute a good candidate to meet the requirements of in wheel motor electric bus applications since it offers compact size and low speed and high torque operation. A first prototype is sized under the specification of an urban bus and its performance is studied using 2DFEA. To reduce its torque ripples, an optimization procedure is then applied on geometrical parameters leading to better performance of the optimized prototype thus fully meeting the requirements of the application.