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This paper concerns a class of MIMO system disturbance attenuation and rejection problem for magnetic bearing system. The disturbance is formulated as a hierarchical one with two different parts. The first part is described by an exogenous model, while the second one is uncertain but bounded signal. In consideration of this, a new composite control scheme is presented, a nonlinear tracking differentiator...
In this paper, the problem of robust fault detection using an interval observer for dynamic systems characterized by LPV (linear parameter varying) models is presented. The observer faces the robustness problem using two complementary strategies. Modeling uncertainties are considered unknown but bounded by intervals. Their effect is addressed using an interval state observation method based on zonotope...
This paper investigates a robust model predictive control approach for a nonlinear aerodynamic test rig, a twin rotor multi-input-multi-output system (TRMS). A highly nonlinear dynamic model of the system has been used to design the robust controller. According to the nonlinear model a polytopic model has been developed considering the nonlinearities and uncertainties of the plant. To this end, a...
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