In-wheel Slotless Permanent Magnet Synchronous Motor for Light Electric Vehicle Propulsion

This paper proposes an in-wheel slotless permanent magnet synchronous motor with toroidal winding for the propulsion of a light electric vehicle. Design evaluation based on 2D finite-element field analysis, proves that the exterior-rotor radial-flux permanent magnet slotless stator with three-phase toroidal winding represents a good-performance choice for light electric traction system.