基于后推設(shè)計(jì)的魯棒自適應(yīng)模糊控制研究.pdf

1、揚(yáng)州大學(xué)碩士學(xué)位論文基于后推設(shè)計(jì)的魯棒自適應(yīng)模糊控制研究姓名：于建江申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)教師：張?zhí)炱?0040401——塑墅l壘!些!!!AbstractAsoneofthemajormetllodsoftheadaptivecontrolofnonlinearsystemsbacksteppinghasbeenreceivedmoleandmollattentioninrecentyearsInthispaper

2、aclassofperturbeds砸ctfeedbacknonlinearsystemswiththeformofsingle—input&single’output(SISO)andmultiple—mput&multiple—output(MIMO)aclassofperturbedpurefeedbacknonliIlearsystemsandaclassoftime—delaysnonlinearsystemswithunkn

3、ownvirtualcontrolcoefficientsarestudiedinturnBasedonthemethodofbackstepping，thedesignandanalysisprocedurestlSeaseriesofcontroltheoriessuchasLyapunovstabilitytheoryfuzzyapproximationtheoryadaptivecontroltheoryrobustcontro

4、ltheoryandSOonThemainworkofthispaperissummarizedasfollowsFirstlyanewdesignschemeofdirectadaptivefuzzycontrollerforaclassofperturbedstrictfeedbacknonlinearsystemsisproposedThedesignisbasedonbacksteppingandtheapproximation

5、capabilityofthefuzzysystemswithadjustablelinearparametersAcontinuousrobusttermisadoptedtominifytheinfluenceofmodelingerrorordisturbance，anditnotonlyenhancesthesystem’Srobustnessbutalsoimprovestheflexibili母ofthedesignproc

6、essLeakagetermsaleincorporatedintotheadaptivelawstopreventparameterdrif【sTheadaptivecompensationtermoftheoptimalapproximationerrorisintroducedtoimprovetheperformancefilltherBytheoreticalanalysis，theclosed—loopcontrolsyst

7、emisproventobesemigloballyuniformlyultimatelybounded、埔thWaekingerrorconvergingtoaresidualsetSecondlyaboveresultsallextendedtoMIMOnonlinearsystemsThemodelincludessystem’SexternaldisturbancesorunmodeleddynamicsTheformofsub

8、systems’highvirtualcontrolcoefficientsismollcommonlyThroughintroducingthemodifiedintegralLyapunovfunction，theapproachisabletoavoidtherequirementoftheupperboundofthefirsttimederivationofallthesubsystems’highfrequencycontr

9、olgains，ThirdlyanewdesignschemeofdirectadaptivefuzzycontrollerforaclassofperturbedpurefeedbacknonlinearsystemsisproposedinthispaperImplicitfunctiontheoremandthemeanvaluetheoremareexploitedtoasserttheexistenceofthecontinu