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1、设计巴巴工作室www.88doc88.comFaintnesscontrollerofburningboilerThetextwhichstudyseriescoalpowderburningboilerscontrolascheme,presentedheatloadsystemlevelmodulescontrol,andenterthecircuitvaguecourtingsuperiorcontrol,simulationresultsconfirmthefeasibilityofthescheme.Currently,manylargedomesticplantshavea
2、doptedcomputerfirecontrol,andtheeffectisverygood.However,becauseofourelectricenergyisverytense,thereweremanysmallplantsinthepotguardingtheplant,especiallyt-heautomaticcontrolsystemcoalpowderboilers,andhavenotbeenproperlyaddressed.ThereasonisCoalpowderboilersfactorstobechargedmore,stronginternall
3、ink,externaldisturbancesarefrequentandhasdistinctcharacteristicsandnonlinearcharacteristicspurelylagforautomaticcontrolsystemforhighsecurity.Thusthesystemisacategorydifficulttocontrol.Althoughmanysmallpowerplantboilersdesignedconventionalinstrumentationsystem,butdidnotachievethedesiredpurpose,an
4、dmoststillusemanualcontrol.Thisisbecauseconventionalinstrumentscanonlyachieveasaltsinkscontrol,notcontrolledprocesschanges,nottheentireboilersystemcoordinationandcontrol.Developmentofthemid-1970s.Toobscurecontroltheory,Coalpowderboilercombustioncontrolsystemhasgoodperformanceandachievegiantburni
5、ngboilersambiguouscontrolsystem.Boilersoperatingsystemisanimportantwaytoachieveautomation.Modelsteamboilersteamdrumboilercombustionsyst-emsburningpressureisthemaintargetwasthetransferofcontrol,causingsteampressurechangesanumberoffactors,suchasfuelvolume,entervolume,towater,steamflowandthevarious
6、changesinthenatureburn.Itisthem-aindisturbancefuelvolumechange(knownasthethree),andsteamflowchanges(knownasthethree).Changesinthevolumeoffuel,ignoringsomeminorfactors,thepressuresteamboilerssimilartothedynamicsofthetarget.BonusPointforinertiallinkswiththechainlink.Fromtheactualprocessgaspr-essur
7、eforthetransmissionofacertainlag,thetimelaginnet.Wecanburnbetweenabout1s~2s;mathematicalmodelsforthesystemG(S)=P(S)/M(S)=Ke/(TS(TZS+1))(1)TypeofP,Tpressuresteam,andonetimeconstants;adelayofonetopowderonetime,Kratiofactor.Thi
