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1、652IEEETRANSACTIONSONFUZZYSYSTEMS,VOL.20,NO.4,AUGUST2012Fault-TolerantControlforTSFuzzySystemsWithApplicationtoNear-SpaceHypersonicVehicleWithActuatorFaultsQikunShen,BinJiang,SeniorMember,IEEE,andVincentCocquempotAbstractThispaperaddressestheproblemo
2、ffault-tolerantthepasttwodecades,ascanbeattestedtobytheabundantlit-controlforTakagiSugeno(TS)fuzzysystemswithactuatorfaults.erature[3],[4],[12][23].Fault-tolerantcontrol(FTC)aimstoFirst,ageneralactuatorfaultmodelisproposed,whichinte-preservethefuncti
3、onalitiesofafaultysystemwithacceptablegratestime-varyingbiasfaultsandtime-varyinggainfaults.Then,performances.FTCcanbeachievedintwoways:passiveandsliding-modeobservers(SMOs)aredesignedtoprovideabankofresidualsforfaultdetectionandisolation.BasedonLyap
4、unovactive.Theformerusesfeedbackcontrollawsthatarerobuststabilitytheory,anovelfault-diagnosticalgorithmisproposedtowithrespecttopossiblesystemfaults[12],[13].Ontheotherestimatetheactuatorfault,whichremovestheclassicalassumptionhand,thelatterusesanFDI
5、moduleandaccommodationtech-thatthetimederivativeoftheoutputerrorsshouldbeknownasniques.Theproblemtodesignarobustfault-detectionsysteminsomeexistingwork.Further,anovelfault-estimationobserverforuncertainTakagiSugeno(TS)fuzzymodelswasstudiedisdesigned.
6、Utilizingtheestimatedactuatorfault,anaccommoda-tionschemeisproposedtocompensatefortheeffectofthefault.Inin[14].In[15],theproblemoffaultdetectionforfuzzysystemsaddition,asufficientconditionfortheexistenceofSMOsisderivedwithintermittentmeasurementswasin
7、vestigated.In[16],usingaccordingtoLyapunovstabilitytheory.Finally,simulationresultstheobtainedfaultinformation,anadditivecontrollerwasde-ofanear-spacehypersonicvehiclearepresentedtodemonstratesignedtocompensateforthefault.Lessconservativecriteriafort
8、heefficiencyoftheproposedapproach.faultaccommodationoftime-varyingdelaysystemswerepro-IndexTermsFaultdiagnosisandestimation,near-spacehy-posedusingadaptivefault-diagnosisobserversin[17].In[18],personicvehicle(NSHV),sliding-modeobserver(SMO),Takagithep