optimal design and analysis of a novel reluctance axial flux magnetic gear

This paper proposes modelling and optimization of a new reluctance axial flux magnetic gear (ramg) with stationary outer rotor and advantages of lower permanent magnet usage. due to the less use of the pms, this structure has a higher economic interest, more reliability, and very simple and robust structure than its conventional ones. gear ratio and operating principles are extracted and verificated using 3-d finite element method (fem) simulations. finally, a parametric optimization is done based on effective dimensions in design procedure with maximum torque density objective function. the magnetic flux distributions of optimized ramg are calculated by 3-d fem, as well as static and dynamic magnetic torques are derived correspondingly.