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1、NeuronPIDCoordinationControlforaUnitPowerPlant'WangNingNationalKeyLaboratoryofIndustrialControlTechnology,andResearchInstituteofAdvancedProcessControl,ZhejiangUniversity,Hangzhou,310027P.R.ChinaE-Mail:nwang@iipc.zju.edu.cnAbstract-TheneuronPIDcoordinationcontrolmethodII.
2、THEDYNAMICCHARACTERISTICSforaunitpowerplantisproposedinthispaper.TheOFAUNITPOWERPLANTdynamiccharacteristicsoftheunit,theneuron二。delandlearningstrategies户;controlaredescribed.ThenthemultivariablemodelfeecoordinationcontrolToasteamdrumboiler,supposethefuelsystemworkssystem
3、isdesignedandthecontrolschemeispresented.well,thepowerunitplantcanbesimplifiedasaWithanexample,thesimulationtestsaremade.Thecontrolledplantwithtwoinputsandtwooutputs.Theresultsdemonstratethatthenevcontrolmethodhasapproximatelymathematicalmodelofaunitpowerplantgoodperform
4、ance,verystrongrobustnessandcanbewritenasadaptability.ThecontrolmethodisverysimpleandtheIP(s)1=[Gru,v(s)Gt}p(s))「up(s))(I)selectionofthecontrollerparametersisnotstrict.[N(s)]LG,vvx(s)GN=p(s)lu.v(s)]Where,u,istheopeningpositionofthesteamturbineI.INTRODUCTIONregulatingvalv
5、e;upistheboilerinput;PdenotesthevapourpressurepriortotheregulatingvalveoftheAunitpowerplantisasyntheticalsystemintegratingasteamturbinegenerator.,Grur(S),GP.N(s),GN.N(S)boiler,asteamturbine,agenerator,thepowernetworkandG,,,(s)aretherelativetransferfunctionsandtheloads.In
6、ordertoobtaingoodperformance,thecoordinationcontroloftheplantmustbeconsidered.ThepurposeofthecoordinationaretomakeapowerIII.THENEURONMODELANDunitadpottotheloadchangesasquicklyaspossibleandSTRATEGIESFORCONTROLtoensurethechangesofthevapourpressurepriortothesteamturbineinal
7、imitedareaatthesametime.ManycontrolmethodsforaunitpowerplanthavebeenIn[1],theadaptiveneuronmodel(inFig.I)formodel-presented,suchasPIDcontrol[1],afrequencydomainfreecontrolisproposedbyN.Wang,J.TuandJ.method[2],optimalcontrol[3],self-tuningcontrol[4](1991).arediscussed.How
8、ever,Beingverycomplicatedwiths,(1)一uncertaintiesandhardlytomodelexactly,thecontrolx2(t)P,(1)systemdesig