Design of a two phase power converter for the control of a Transversal Flux Machine

The transversal-flux-machine (TFM) is a high-pole machine especially suited and developed for low speed and high torque. Its greatest advantage is the simplified stator configuration realized by common ring coils. However, the magnetic design in stator and especially in the rotor is rather complicated. The transversal-flux-machine is a single phase permanent magnet synchronous machine. For continuous torque production, at least two parallel systems are required, therefore. Practically, this means two phases. Control of such a two phase machine requires a customized power converter. This paper describes design of that power converter and includes a possible control structure for that unique machine.