Toroidally wound induction machines

This paper presents the toroidally wound induction machine and argues that such machines could have advantages compared to traditional concentrically wound machines. The paper emphasises the importance of attenuating harmonics in induction machines, which can be achieved using toroidal windings whilst reaping the benefits of non-overlapped windings. The paper also discusses possible construction methods and how these could result in a higher slot fill factor because the stator winding can be wound directly onto the stator structure.