Unmatched disturbance rejection for AMB systems via DOBC approach

This paper addresses the disturbance rejection problem for active magnetic bearing (AMB) systems via DOBC approach. A linearized model of AMB system with unmatched disturbance is proposed in state space form. Based on the model we present, a method which estimates and actively rejects disturbance with disturbance observer and feedback controller is proposed. Simulation results show the performance of the system in presence of unknown disturbance.