外文翻译---三坐标测量机测头的误差校准

外文翻译---三坐标测量机测头的误差校准

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时间:2018-11-19

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1、附录2StudyandDesignnoAutomationControlSystemoftheThermalPowerUnitfromtheSystemPointofview.TianJianyanliusifengPanlizhen(1.NanjingUniversityofAeronauticsandAstronautics,Nanjing210016China)(2.TaiyuanUniversityofTechnology,Taiyuan030024China)Abstract:Fromthesy

2、stempointofview,thefeatureofthethermalpowerunitandthedemandonitscontrolsystemareanalyzedandresearchindetailsinthispaper.Thecharacterthattheboilsandthesteamturbineareawholeofrelativeindependenceisfullyconsidered.Bycoordinatecontrol,thepurposeoftheoptimalwh

3、oleoperatingeffectofthesystemisrealizeadoptingthekeytechniquesofcommunication,computerandintelligentinformationprocessetc....Theadaptationandwholepropertyofthesystemisemergedbyinteractionandcoordinationbetweensubsystems.1IntroductionThesystemisanorganicwh

4、olecertainstructureandfunction,whichconsistsofseveralelementwithinterrelation,interdependenceandinterplay.Thethermalpowerunitisatypicalsystem,composedofgenerator,steamturbine,boilerandmanyanxiliaryequipment.Itsmainfunctionistoproducethepowerloadaccordingt

5、opowernetworkrequirement.Systemengineeringisthescienceusedtostudyanddesignthecomplexsystem.Inthemeantime,Itisalsothetheoryandmethodusedtodealwithsystemsintermofdefiniteaiminordertoachievetheoptimalwholeofthesystem.Fromthesystempointofview,thecoordinatecon

6、trolsystemofthethermalpowerunithasbeenstudiedanddesignedinthispaper.2StudyandDesignonAutomationControlSystemoftheThermalPowerunitfromtheSystemPointofView2.1FunctionofAutomationControlSystemofthePowerunitAtfirstthethermalpowerunitasthecontrolledobjectisdee

7、plystudiedbeforeitsautomationcontrolsystemisstudiedanddesigned.Thethermalpowerunitisahugegroupofequipments,whichiscomposedofgenerator,,steamturbine,boilerandmanyauxiliaryequipments.Itsprocessflowiscomplexandpipelinesintervenient.Especiallythelarge-scalepo

8、werunitisatypicalcoupling,nonlinear,varyingcomplexcontrolledobjectwithmulti-inputandmulti-output.Thousandsofparametersaremeasured,operatedandcontrolled.Thecharacterofobjectischangefulbecauseofmanydifferentoperatingm

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