A bounded-error approach to simultaneous state and actuator fault estimation for a class of nonlinear systems
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10.1016/j.jprocont.2017.01.002
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/115902
Tipus de documentArticle
Data publicació2017-04-01
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Reconeixement-NoComercial-SenseObraDerivada 3.0 Espanya
Abstract
This paper proposes an approach for the joint state and fault estimation for a class of uncertain nonlinear systems with simultaneous unknown input and actuator faults. This is achieved by designing an unknown input observer combined with a set-membership estimation in the presence of disturbances and measurement noise. The observer is designed using quadratic boundedness approach that is used to overbound the estimation error. Sufficient conditions for the existence and stability of the proposed state and actuator fault estimator are expressed in the form of linear matrix inequalities (LMIs). Simulation results for a quadruple-tank system show the effectiveness of the proposed approach.
CitacióBuciakowski, M., Witczak, M., Puig, V., Rotondo, D., Nejjari, F., Korbicz, J. A bounded-error approach to simultaneous state and actuator fault estimation for a class of nonlinear systems. "Journal of process control", 1 Abril 2017, vol. 52, p. 14-25.
ISSN0959-1524
Versió de l'editorhttp://www.sciencedirect.com/science/article/pii/S0959152417300124
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