NUMERICAL ANALYSIS OF A SIMPLIFIED MAGNETIC GEARBOX FOR ENERGY HARVESTING APPLICATIONS

The paper assesses the mechanical torque of a two-dimensional magnetic gearbox used in energy harvesting applications by increasing wind turbines' low mechanical power speed. The simplified device doesn’t consider the rotational speed transmission from the inner magnetic rotor to the outer magnetic rotor, which is considered mechanically blocked. The numerical simulation analysis considers a parametric study to address the influence of the dimensions of the outer magnets on mechanical torque by introducing a shape factor and by maintaining the same area of the outer rotor magnets. The results are obtained using the finite element method (FEM).