Application of high gain adaptive output feedback control to a magnetic levitation system

This paper shows application results of a high gain adaptive output feedback control to a magnetic levitation system. Usual high gain output feedback control can not be applied to the magnetic levitation system, since it is an unstable system with a relative degree greater than one and uncertain nonlinearities in control input term. In the applied method, a high gain adaptive output feedback controller is designed by introducing two different virtual filters and using backstepping strategy. The application results are shown in the numerical simulations and experiments.