Evaluation of the transverse flux circumferential current machine by the use of sizing equations

With the evolution of numerous high power density machines, it becomes important to compare the power potential of machines with vastly different topologies having a variety of different waveforms of back EMF and current. The approach of this paper is based on general purpose sizing and power density equations which will permit comparison of the main dimensions and power of such machines previously reported. In this paper, the comparison method of machine power densities is extended to include the transverse flux circumferential current type permanent magnet (TFCCPM) machine, and furthermore to compare the power production capability between the TFCCPM machine and the well-known squirrel cage induction machine