Torque, power, losses and heat calculation of a transverse flux reluctance machine with soft magnetic composite materials and disc-shaped rotor

In this paper the authors introduce a type of transverse flux reluctance machines (TFRM) in a special lightweight construction method with a disc-shaped rotor. The device uses soft magnetic composites (SMC) for the magnetic circuit, which allows complex stator geometries. Basic design principles concerning the magnetic circuit, torque and power output are described. A crucial point in this paper is the determination of hysteresis- and eddy current losses in the SMC and the calculation of power loss and current displacement in the copper winding. Finally a thermal model based on lumped parameters is introduced and calculated temperature rises are presented.