机械外文翻译--能提供低成本风电的新型风力机.doc

Low-costwindpowercanprovideanewwindturbineAbstract:Thefirstgenerationofcommercialproliferationofenhancedwindturbine(DAWT)inNewZealandhasjustbeguntrialoperationtwoyears,ifthedeveloperstoachievetheexpectedresults,thisnewdesignofwindmachinestobesignificantlyreducedcostofwindpower.NewZealandinthedistanceabout100kmAokelannantheWaikaretuontopofahill,arevolutionarynewwindturbineisatwo-yeartrialoperation.Thewindmachinesandtheappearanceofconventionalwindturbinecompletelydifferentcomparedtoitsheightof17m,muchlikeaJuwusquattedonthePeak,andtheconventionalwindturbineisaslenderbody,tallandtoweringoverthetopofthehill.Thisisputintooperationthefirstgenerationofcommercialproliferationofenhancedwindturbine(DAWT:diffuseraugmentedwindturbine),ifthedeveloperstoachievetheexpectedresults,willleadtosignificantreductioninthecostofwindpower.Duringthetrialthenewwindturbinetechnology,canalsotesttheproliferationofCentralCovernewmaterials,high-strengthfiberstostrengthenthesteelreinforcedconcrete.Suchwindturbineonthegroundreferredtoasconcretewindturbine.Inbusiness,itiscalledVortec7ofwindmachines,becauseithasa7mindiameterrotor.Windmachinesfromnearly100smallinvestors,setupaprivatecompany-VortecEnergyLimitedresponsibleforthedesignandconstruction,thecompanyraised3.5millionU.S.dollarsdevelopmentoftheprototype.VortecEnergyLimitediscurrentlybeingfurtherraiseabout700milliondollarstobuildtwosetsofrotordiameterof20moftheunit.Oneofthenewunitswillbeinareasofhighwindspeedtest,probablyinthevicinityofWellington,NewZealand,theaveragewindspeedinanotherarea.SouthAustraliastategovernmentsaidthatthedesignhasalotofinterestinAdelaideandwillspeeduptheinstallationofanaveragewindspeednearthecrew,becausethestategovernmentthatisararewindofrenewableenergy,theneedtopromotetechnicalbreakthroughs-stateadvantageofthemoreLoweraveragewindspeedresourcedevelopment.Twonewtypeofrotordiameterof20moftheunitafterthesuccessfuloperation,VortecEnergyLimitedwillconsiderthepossibilityofNasdaqStockExchange.Vortec7unitperformancedatashowthattherotordiameterof20mbelowthedesignto0.031U.S.dollars/kWhthepriceofInternetaccess,itwillenableNewZealandandwindpowercancompeteexistingpowerplants,andothernewmethodsofpowergenerationcomparedtomoreCompetitive.IfVortecfunctionofwindpowergenerationinthispricelevel,inthedevelopmentofwindpowerwillrapidlybecomeapowerfulnewforce.VortecEnergyLimitedisthebackingofentrepreneursRobinJohannink,hesuccessfullyoperatingaseriesofoperations,butalsoPacificLithium(anextractfromseawaterlithiumcompanies)backing.Johannink,saidVortectechnologyisaninternationalproduct,butthetechnologyintheNewZealandstockmarketwasontherecognitionandattentionisnottoohigh,inthisdifficultmarket.ThereforeVortecEnergyLimitedisconsideringtheNasdaqinNewYorkStockExchangelistingislikelytoachievein1999.AproliferationoftechnologyU.S.aerospacegiantGrummanSpaceCompany(nowNorthropGrummanCorporation)spenteightyearsdevelopingtheproliferationoftechnologyandaproliferationofenhancedwindturbinetechnologypatents.Itwasthespreadofadetailedanalysisoffluiddynamicsandtheuseofa5minthewindtunnelmodelconfirmedtheresults.Theproliferationofwindturbinerotorinthelowerreaches,anditsroleasawing,therearrotorinalow-voltageparts.Thissuctioneffecteffectiveinaroundtherotorspeedmultiplied.Conventionalwindturbinerotorcanonlybeeffectiveuseofwindaround60percent.showapatternofproliferation.Theproliferationofeconomyisthekeytothelowestcosttomaximizethesize.Windtunnelstudiesshowthatin45-degree-proliferationstructure,thewallofsurfacewindflowmaybetwoslotmaintainedbythejet.Intheprototype,thetotalsizeofthespreadoffurtherreduction,throughtheuseofgeneralandexportsindiameterthan30percentofthearcstructure,enhancethehardnessofCentralenclosures.Sothatthedesignhasbeenchosentoreceivetheminimumamountofmaterialthesizeofthegreatestproliferation.VortecEnergyLimitedwasawardedtheNorthropGrummanCorporationwiththeproliferationoftechnologyforaperiodof20yearsofglobalpatentsand20patentssincetherighttoupdatethepermit.NorthropGrummanCorporationtoretaintheirowninternaluseoftheproliferationoftechnologyratherthanenhancethecommercialmarketforwindrights.KennethForeman,formerGrummanSpaceresearchteamleader,VortecEnergyCorporationfortechnicaladvice,VortecEnergyLimitedaccesstotheGrummanSpaceResearchGroupeightyearsonalltherecords,testreportsandpatents.2materialstechnologyGrummanSpaceResearchGroupinthedevelopmentofproliferation-enhancingtechnologiesinthefaceofaproblemisthatcommercial-scalewindturbinematerialsmusthavehighstrengthandlonglife,lowcostfeatures.Havealuminum,glassfiber,steelandreinforcedconcreteforthetraditionalassessmentandaccounting,butthewindcannotmeettherequirementsofeconomicdevelopment.Inalltheassessmentmaterials,themostdesirableisreinforcedconcrete,buttheuseoftraditionalreinforcedconcrete,thesizeofthespreadofthewind-ratedoutputcanonlymeet70kW.Assmall-scaleunitscannotenhancethediffusionoftechnologybusinessdevelopment.NewZealandintheuseofreinforcedconcretetowersandtheconstructionofocean-goingboatssuchequipmenthasalonghistory.Onthisbasis,thestructuralengineerAlexanderandAssociatesin20yearshasdevelopedanewproduct-high-strengthfiberstostrengthenthesteelreinforcedconcrete.Thisnewmaterialbendingstrengthisthreetimesthelow-carbonsteel,basicallydonotneedmaintenance.Thisnewmaterialcouldbeeconomictobuildtheproliferationoflarger,sothatthereissufficientwindmachinesandconventionalwindturbineoutputofthecompetition.Prototyperotordiameterof7m,heightof17m,thehighestoutputfor1MW.Willbetheconstructionoftwounitsusingtherotordiameterof20m,high52m,andeffortsto3MW.Theproliferationoftheuseoftwo-tier3m1m30mmofhigh-strengthsteelfiberreinforcedconcreteslabofreinforcedcompositeformed.Firstlaminatealongthecomplexframeworkofthenecessarytwo-wayWanchengsurfaceandfixedinplace.Thesecondlaminateontop,bending,andthenfillinginthefoundationboardsurfacetwo-waylock.Quthenthesepanelsbondedtogether,andthehardenededgeofdealingwithaproliferationofsegment.CompleteassemblyoftheproliferationofgoodbeforetheAcademyofEngineering,UniversityofAucklandinthesingle-plateassemblyandagoodsegmentofthespreadofthestresstestsamples.3equipmentbalanceInadditiontoenhancingtheproliferationoftechnologyandmaterialstechnology,windmachinesareallconventional.Rotorequippedwithafixedpitchofthefourleaves,leavesfortheweldingofthesteelstructure,thesurfacematerialforglassfiber.DavidBrownthrougharotorspeedgearboxoraconventionaldrivers1200min-1,400VoftheABBcompanyssynchronousgenerator,invertergeneratorsrunning.Rotor,gearboxandgenerator()fromtheU.S.NewWorldPowerCompany(NewWorldPower)toprovide.FrequencyAC-DCrectifierfirst,andthentheinverterforAC50Hz,thestep-uptransformerintothelocalelectricitycompany11kVpowergrid.Rectifier/converterequipmentfromAucklandcompanySantonTechnologyCo.,Ltd.designandmanufacture,thecompanybatterychargersandspeeddrivemanufacturershaveyearsofexperience.Takingintoaccounttheproliferationofsize,needsalargeandstablefoundationtopreventthewindloadsandseismic,Lodging.Equipmentwasinstalledtoalarge-diametercircularorbit,thewindmachinecanalongits360-degreerotation,therotatingdeviceontrackwiththewindcontrolsystemforelectricaldevices().Thisarrangementprovidesthefoundationforstability.Becausethistypeofwindturbinecouldavoidtheproliferationofhighwindsandaprotectivecoverfromtherotorimpactontheabilityofstrongwinds,whichdonotneedtocontrolasimpledesignoftherotorbladepitch.Thismakesthistypeofwindturbineisverysuitableforuseinwindyareas,andmaintenanceisverysmall.4designadvantagesTheproliferationofenhancedwindmachinescomparedwithconventionalwindturbinehasmanyadvantages,including:Lownoise.Conventionalwindturbinenoisefromthemaximumspeedatthetopoftherotorandblade-throughtothepillars.InVortecunit,therotorwasahigh-densitymaterialcoveredbythe(proliferationof),whichpreventthenoisefromtherotorendofthefieldradiationandthereforedidnot,aswithconventionalequipment,amajorpillarofthenoise.Lessland.Onthesametermsofenergyoutput,Vortecunitcomparedwithconventionalwindturbinerequireslessspace,reducingthelandpurchaseandrentalcosts.Withoutaffectingthelandscape.Vortecuniteasilypaintedvariouscolors,whenwatchedfromadistancewhenintegratedwithavarietyofbackgrounds,equipmentDunzuotheshapeandundulatingmountainvillageiscoordination.Decaymaygust.Theproliferationofincreaseinoutputatthesametime,butalsoasawaythrottle,thepeakwindgustdecay,thusreducingtherotortowithstandthefluctuationsanddriveawayfromthestress.Birdslessimpact.Despitethewindfunctionpainteddifferentcolorstoreducethevisualimpact,butthebirdflewneartheveryeye-catching,nobirdsimpactoftherapidlyrotatingbladesofthewindmachineaccident.Infrastructurecostsandlow-costpowergeneration.Windmachinesuseaverysimplesetpitchleaves,ordonotneedtopitchcontrolbrakecontrolsystem.Th