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1、Proceedingsofthe6thWorldCongressonIntelligentControlandAutomation,June21-23,2006,Dalian,ChinaQuasiT-SFuzzyModelsandStableControllersfor*NetworkedControlSystemsHuajingFang,HongZhang,YiweiFang,FangYangSchoolofInformationTechnologyandEngineeringHuazhongUniversityo
2、fScienceandTechnologyWuhan,430074,Chinahjfang@public.wh.hb.cn,hjfang126@126.comAbstract-NetworkedControlSystems(NCS)aresystemsrecentyears,manyresearchersareinterestedinNCS,therearewithatleastoneloopclosedthroughdatanetworks.NCShavehundredsresearchpapersappearin
3、gonjournalsandmanypeculiarities,suchasnetwork-inducedtimedelay,dataconferences,witchdealwiththedesignandperformancepacketdropouts,asynchronousclockamongnetworknodesetc.[1-6]analysisofNCS.ItisnecessarytodevelopnewtheoryandtechnologyforcontrolInthispaper,weemphas
4、izeonthelinearandnonlinearsystemovernetworks.ManyresearchersareinterestedinNCSNCSwithnetwork-introducedrandomtimedelays.Wewillrecently.Inthispaper,weemphasizedontheNCSwithrandomtimedelays.WepresentedanewmodelingmethodforlinearandconsiderNCSasdepictedinFigure1,a
5、ndpresentanewnonlinearNCSwithrandomtimedelays,andnamedthesemodelsasQuasiT-Sfuzzymodels.BasedonthesenewActuatorPlantSensordescriptionsforNCS,twotheoremsforthestabilityofclosed-loopNCSandstablecontrollerdesignwerepresented.Allthediscussionsandresultsinthispaperar
6、enotonlyapplicabletoNCSbutalsoapplicabletonormalnonlinearsystemwithDelaytCADataNetworkDelaytSCmultipletimedelaysIndexTerms–Networkedcontrolsystems,Randomtimedelay,ControllerMultipletimedelays,Fuzzymodeling,StabilityFig.1NetworkedControlSystemI.INTRODUCTIONmodel
7、ingmethodforlinearandnonlinearNCSwithrandomAsnetworkscontinuetobuildout,suchasInternet,andtimedelaysanddiscussthestablecontrollerdesignproblems.networktechnologybecomescheaperandmorereliablethanThispaperisorganizedasfollows.First,anewmodelingtraditionalfixedpoi
8、nt-to-pointwiringconnections,moreandmethodforlinearandnonlinearNCSwithrandomdelays,morecontrolsystemshaveoperatedandwilloperateoverwhichisnamedasQuasiT-Sfuzzymodeling,ispres