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自动化学报 2008
基于神经网络补偿的非线性时滞系统时滞正反馈控制DOI: 10.3724/SP.J.1004.2008.01196, PP. 1196-1202 Keywords: Time-delaysystem,neuralnetworks,systemidentification,adaptivecontrol,linearizationcompensation Abstract: ？Anewadaptivetime-delaypositivefeedbackcontroller(ATPFC)ispresentedforaclassofnonlineartime-delaysystems.Theproposedcontrolschemeconsistsofaneuralnetworks-basedidentificationandatime-delaypositivefeedbackcontroller.Twohigh-orderneuralnetworks(HONN)incorporatedwithaspecialdynamicidentificationmodelareemployedtoidentifythenonlinearsystem.Basedontheidentifiedmodel,locallinearizationcompensationisusedtodealwiththeunknownnonlinearityofthesystem.Atime-delay-freeinversemodelofthelinearizedsystemandadesiredreferencemodelareutilizedtoconstitutethefeedbackcontroller,whichcanleadthesystemoutputtotrackthetrajectoryofareferencemodel.Rigorousstabilityanalysisforboththeidentificationandthetrackingerroroftheclosed-loopcontrolsystemisprovidedbymeansofLyapunovstabilitycriterion.Simulationresultsareincludedtodemonstratetheeffectivenessoftheproposedscheme.
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