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1、軋機(jī)液壓厚度自動(dòng)控制系統(tǒng)的研究及應(yīng)用THERESEARCHANDAPPLICATIONOFTHECOLDMILLAUTOMATICGAUGECONTROLSYSTEMABSTRACTAutomaticGaugeControlSystem(AGC)isanimportantpartinautomaticsysteminmill.Theclassicalcontroltheoryisbasedonaccuratemathematicmodel.Butbecauseofcomplexityofmillprocessmechanism,itisdifficulttobuildan
2、exactmathematicmodel.Intelligentcontroltechnologyisaneffectwaytosolvetheproblemofautomaticgaugecontrol.Thisthesisintroducesdetailedlyaboutthenewtechniques,thenewspecialties,thegeneralconstitutionofthecoldsheetmill,thelocationandfunctionoftransducers,andtheparametersofmaintechnologybasedon
3、theMSB-6C-650BReversiblecoldrollingmillthickHydraulicControlSystem.Thesystem'smaincontrolmethod,principle,theprimaryfunctionofreversiblerollingmillandelectriccontrolsystemaccuracy,tensioncontrolaccuracy,precisionthicknesscontrolarealsointroduceddetailedly.Basedonthecurveofmillelasticdefor
4、mationandthecurveofstripplasticdeformation,theinfluenceofsomefactorsonthestripexitgaugeisanalyzed.OntheanalysisofthehydraulicAGCsystemandoperationmechanisminastripmill,andthemathematicalmodelofelectric-hydraulicpositioncontrolsystemisbuiltaccordingtotheequationofloadingpressure-fluxinserv
5、ovalve,theequationofloadingfluxinhydrauliccylinderandtheequationofforceequilibriuminhydrauliccylinder.Accordingtothemathematicalmodelofelectric-hydraulicpositioncontrolsystem,thePIDcontrollerisapplied,andsteadycontroleffecthasbeenachievedinhydraulicAGCsystem.Becauseofthepropertyoffastresp
6、onse,highcontrolprecisionandhighanti-interferenceofthehydraulicAGCsystem,AdaptiveFuzzyPIDcontrollerandthesingleneuronadaptivePIDcontrollerareadopted,whichisappliedintheAGCcontrolsystem.Simulationresultsshowthat,basedontheAdaptiveFuzzyFuzzyReasoningPIDcontrollersarecomparedtothetraditional
7、systemdynamicresponsecurvesbetter,shorterresponsetime!Overshootissmall,steady-statehighprecision!Systemencounterinterferencecanquicklyreturntosteady-state,gooddynamicandstaticproperties.AdaptivesingleneuronPIDcontrollercomparedtothetraditionalstep-responseovershoots