Magnetic gearboxes -- Design and construction, Finite element method, Heterodyning (Electronics)
This paper presents the performance comparison between a flux concentration and triple permanent magnet consequent pole magnetic gear rotor typology with the same 7.5:1 gear ratio. The triple permanent magnet consequent pole magnetic gear is unique in that it can create torque change through two field heterodyning pole combinations. The performance with respect to volumetric and mass torque density is considered. It is shown that the flux concentration typology can operate with a higher mass and volumetric higher torque density, even when using a low flux concentration ratio rotor.
Wong, Ho Yin, "Coaxial Magnetic Gearbox with a Flux Concentration Halbach Rotor and Consequent Pole Rotor Typology" (2018). Electrical & Computer Engineering PhD Day. 2.