Characterisation and modelling of magnetic couplings and gears for servo control systems

This paper investigates control issues for drive trains incorporating non-linear magnetic gears. An analytical model of the magnetic gear is used as the basis for deriving optimum PI controller settings based on minimizing the ITAE metric. It is shown that a linearized two-inertia model of the magnetic gear, and PI controller based on an optimal fourth order ITAE polynomial, provide good control of the highly compliant non-linear magnetic gear characteristics.