, Vadim Kaparin The paper focuses on the adaptation of the Newton observer for the estimation of the magnetic flux in the feedback control of a nonlinear active magnetic bearing (AMB) system. The Newton observer is constructed for the exact discrete-time model of the AMB system and is presented in a detailed and simple algorithm ready for implementation. The observer is combined with three controllers, and the effectiveness of the observer-based control scheme is verified via numerical simulations.
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