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1FaintnesscontrollerofburningboilerThetextwhichstudyseriescoalpowderburningboilerscontrolascheme,presentedheatloadsystemlevelmodulescontrol,andenterthecircuitvaguecourtingsuperiorcontrol,simulationresultsconfirmthefeasibilityofthescheme.Currently,manylargedomesticplantshaveadoptedcomputerfirecontrol,andtheeffectisverygood.However,becauseofourelectricenergyisverytense,thereweremanysmallplantsinthepotguardingtheplant,especiallyt-heautomaticcontrolsystemcoalpowderboilers,andhavenotbeenproperlyaddressed.ThereasonisCoalpowderboilersfactorstobechargedmore,stronginternallink,externaldisturbancesarefrequentandhasdistinctcharacteristicsandnonlinearcharacteristicspurelylagforautomaticcontrolsystemforhighsecurity.Thusthesystemisacategorydifficulttocontrol.Althoughmanysmallpowerplantboilersdesignedconventionalinstrumentationsystem,butdidnotachievethedesiredpurpose,andmoststillusemanualcontrol.Thisisbecauseconventionalinstrumentscanonlyachieveasaltsinkscontrol,notcontrolledprocesschanges,nottheentireboilersystemcoordinationandcontrol.Developmentofthemid-1970s.Toobscurecontroltheory,Coalpowderboilercombustioncontrolsystemhasgoodperformanceandachievegiantburningboilersambiguouscontrolsystem.Boilersoperatingsystemisanimportantwaytoachieveautomation.Modelsteamboilersteamdrumboilercombustionsyst-emsburningpressureisthemaintargetwasthetransferofcontrol,causingsteampressurechangesanumberoffactors,suchasfuelvolume,entervolume,towater,steamflowandthevariouschangesinthenatureburn.Itisthem-aindisturbancefuelvolumechange(knownasthethree),andsteamflowchanges(knownasthethree).Changesinthevolumeoffuel,ignoringsomeminorfactors,thepressuresteamboilerssimilartothedynamicsofthetarget.BonusPointforinertiallinkswiththechainlink.Fromtheactualprocessgaspr-essureforthetransmissionofacertainlag,thetimelaginnet.Wecanburnbetweenabout1s2s;mathematicalmodelsforthesystemG(S)=P(S)/M(S)=Ke/(TS(TZS+1)(1)TypeofP,Tpressuresteam,andonetimeconstants;adelayofonetopowderonetime,Kratiofactor.Thismathematicalmodel,itisonlyasimilartimeconstantsdifficulttoidentifytheprecisemeasurements,changesinoperatingconditionsandthepresenceofsystemequipmenterrorandotherfactorswillcausetheparameters,constantchanges,such2changesresultingmathematicalmodelandtheactualsyste-m.Oftendonotmatchtoensurebettercontroloverperformance,theuseofvaguecontrolisofgreatsignificance.Controlscheme,boilercombustionsystemisacomplexofthreeexporttargets,asseeninfigure1,butexistsbetweenthevolumeofFigure1targetsex-pressedbytheactualindepthstudy,Itfoundthat:themainchamberpressur-efromthewindandenterthefilm,andthevolumeofitsothereffectsaresmallitcanbefuelvolume,SteamchamberpressureasthepressurebroughtfansoftheformerfedsinglecircuitcontrolUnification.Inaddition,theplanistoensureaccesstothetraditionaleconomicpracticescombustionboilersthatfallthroughasynthesizingCalibrationofgasblastwindofsynthesizing.DepartmentcitedvariousconstraintssmethodsasaresultoftheeffectisnotidealC27,firstasameansofeconomiccontrolofthemaintempleburnedZr0mutilatedsynthesizingcheckingdeviceisexpensive,lifeshort;Secondly,thelongerthetimelagsynthesizingsignalswhentheloadchanges,thevolumeofcoalmutations,synthesizingnottimelyresponse,maintainedtheoriginalairblowvolumewillinevitablycausegiantroastinadequate.Therefore,wedonotadoptsuchanapproach,buttousethermalefficiencythancoalandwindbetweenpeaksidentitytochambertemperatureaccusedofusingcourtingsuperiorcontrol,automaticsearchofthebestwindthancoal.Sothatthefuelcandesignfortwoinchesasmutuallyindependentandaffiliatedcontrolsystemsthatheatloadcontrolsystems(tomaintainsteampressure)roasteconomiccontrolsyste-m(POWiththebestwind/coalthan).Thediagramshowedinfigure1.Usedtocontrolsteampressureonthechambertemperaturecontrolparametersfordeputytovapourpressureforcontrolparametersstringlevelcontrol.Intermsoftiming,becausechambertemperaturemuchmorethanvapourpressureadvance,andinertiatimeconstantsaresmaller.Advance.Tothevolumeofcoaltoovercomesystemtransitiontime,thevolumeofsuperlarge,theslowrecoveryoftheparameters,suchaspoorqualitycontrolshortcomings,butalsoforpeopledeputycircuitintodisturbances(suchasgreenhouses,citedwind,chamberpressure,thevolumeofcoal,coal,etc.)hasafairlystronganti-interferencecapability.PlansforChinahadtopowdermachinerotationalspeed,fansofTheIr.Proportionaltotherotationalspeedwithpowdermachinetoachieveratecontrol,asfansoftenrough-andwilladjusttotheoptimalworkingpointfortheworkpointsnear.Whenchangestothevolumeofcoal,fanscorrespondinglychanged,chambertemperaturechangesatthistimesinceanexcellentstart3am-biguoussignalcontrollers,automaticsearchofthebestwindthancoal.Controlalgorithmsvaguecontrolalgorithms,ambiguoussignalcontrollersKansaidonereasonsingletwo-part,theacquisitionofcontrolispartoftheSeparationLinealgorithmstable,partlybythecontroltableonlinealgorithm.SeparationLinealgorithmisbasedontheexperienceofoperators,basedonfuzymathsyntheticreasoningprocess,withtheultimateaimofproducingabluredcontrollerfortheon-lineapplicationcontrolenquiriestable(thatis,vaguecontroltable).Onlinealgorithmisactuallytableexportcontrolprocess.Thelessonslearnedfromartificialvaguecontroltableisverycrude,causingcrude-easons,isvagueindefiningsubset.Fullyrelyonthesubjectiveandwillnotnecessarilyrealistic.Theneedtocontrolonlinevaguecontroltableonlineame-nded.Wethereforeadoptedavaguesignalcontrollertoimprove.Comparedwiththebasicambiguitycontroller,whichaddedavaguecontrollerparameterswillbeonlinefromtheagency.Theagencyrevisedalgorithmisbasedonfakeintelligencepeoplecontrolledthinking,analysisandidentificationsystemexportstatus,dynamicallyindependentlyconductedonlineamendedtoadjustthecont-roloftheentireprocesssimulationtestsaccordingtocontrolascheme,andtheuseof(1)amathematicalmodelparameterselectedT1=120s,T2=60s,t=20slagtime,samplingcyclecircuitasis,outsidecircuitfor2soP=3anumberofgaspressurecircuitemulation,FigurespiritvapourpressurevaguestringclasscontrolsystemdiagramFigure5givesthestringclassvaguecontrolsimulationcurve,andinBandstouringinterference.Theresultscanbeseenbythesimulationoperation,thestringclassvaguecontrolhasstrongantinterference-capability,theuseofimprovedAmbiguoussignalcontrollersforboilercombustioncontrolsystemhasaverygoodperformance.So,thewindcoalthancourtingdistinctionsblurredcontrolalgorithmsinthetrialoperationofaboilerplantcoalpowder,iftestingelements(temperatureHeat,Puppetkits)installedsuitablelocation,theoperatingresultswereverygood.Asthisisanexcellentcontroloftheexportofafifteenvolumeamendment,thus,isparticularlyapplicabletocoalvolatileoccasions.4鍋爐燃燒系統(tǒng)的模糊控制本文研究了煤粉鍋爐燃燒系統(tǒng)的控制方案,提出了熱負(fù)荷系統(tǒng)的串級模糊控制,及送風(fēng)回路的模糊自尋優(yōu)控制,仿真結(jié)果證實了該方案的可行性。目前,國內(nèi)的許多大型火電廠已采用了微機(jī)控制,收效甚好。但是,由于我國的電力能源十分緊張,還存在許多小型的火力發(fā)電廠,對于這些電廠的鍋護(hù),特別是煤粉鍋爐系統(tǒng)的自動控制問題,并沒有得到很好的解決。究其原因是煤粉鍋爐的待控因素比較多,內(nèi)部關(guān)聯(lián)強(qiáng),外部擾動十分頻繁,且具有明顯的純滯后特性和非線性特性,對自動控制系統(tǒng)的安全性要求較高等。因此是一類難以控制的系統(tǒng)。許多小型電廠的鍋爐雖然設(shè)計了常規(guī)儀表系統(tǒng),但都沒有達(dá)到預(yù)期的目的,大多數(shù)仍然采用手工控制。這是因為常規(guī)儀表只能實現(xiàn)帶沖量的控制,不能適應(yīng)受控過程的變化,不能實現(xiàn)整個鍋爐系統(tǒng)的協(xié)調(diào)控制。70年代中期發(fā)展起來的模糊控制理論,
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