Feedback linearization of extended relative degree model of nonlinear active magnetic bearing system

In the paper the nonlinear control strategy based on feedback linearization for nonlinear active magnetic bearing (AMB) system is discussed. In this context, self-sensing AMB dynamics, in affine-form is investigated. The extended relative degree of AMB dynamics model is considered. Since AMB system is strongly nonlinear a modification of the classical geometric control linearization is used. Numerical simulations are carried out to verify the theoretical approach.