Analysis of Fractional-Slot Concentrated Winding PM Vernier Machines With Regular Open-Slot Stators

Permanent magnet (PM) vernier (PMV) machines have been extensively researched for direct-drive applications due to their inherently high torque density. This paper presents a quantitative investigation on fractional-slot concentrated winding PMV (FSCW-PMV) machines with regular open-slot stator topology. Based on winding theory, the configuration of two winding types, i.e., nonoverlapping winding ...