Separation of volume and surface forces and torques in a DC excited Flux Switching Machine

In this paper the separation of volume and surface forces and torques of a highly saturated DC excited Flux Switching Machine (DCFSM) is presented. The volumetric and surface forces are derived from the stress tensor caused by the magnetic field. High saturation of the iron will contribute in the increase of the internal forces, as a consequence, the resultant torque is also separated in volume and surface torque. The simulation results show that the torque created by the volume forces is contributing to significant part of the total torque. Therefore, the research of the volume forces consequences is becoming a relevant topic for further research.