Multimodel-based flight control system reconfiguration control in the presence of input constraints

(整期优先)网络出版时间:2010-04-14
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Inthispaper,anactivefaultaccommodatestrategyisproposedfortheplantinthepresenceofactuatorfaultandinputconstraints,whichisacombinationofadirectadaptivecontrolalgorithmwithmultiplemodelswitching.Theμ-modificationisintroducedinthemodelreferencearchitecturetoconstructtheadaptivecontroller.TheproofofstabilityisbasedonthecandidateLyapunovfunction,whileappropriateswitchingofmultiplemodelsguaranteesasymptotictrackingofthesystemstatesandtheboundednessofallsignals.Simulationresultsillustratetheefficiencyoftheproposedmethod.