wind turbine market overview -全球风能市场报告

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1、WindTurbineStudyTableofContentsWhatisaWindTurbine?WindEnergy:HowitWorks…PricingCapitalCostEstimatesInstallationCostFactorsOperationandMaintenanceCostFactorsArticle:TheEconomicsofWindEnergy(AWEA)CommercializedWindTurbineManufacturersMarketShareofTop10ManufacturersTop3ManufacturesVestasWindSystemsA/SO

2、verviewHoover’sReportProductBrochuresGEWindOverviewHoover’sReportProductBrochuresEnerconGmbHOverviewHoover’sReportProductBrochuresWindEnergyProjectsinOhioRelatedArticles10StepsinBuildingaWindFarmWindPowerTodayWindPowerMythsvs.FactsCompanyProfile:BTMConsultApSWindEnergyResources/AssociationsWindTurbi

3、nesWindpoweristheprocessbywhichwindisharnessedandusedtogenerateelectricity.Awindturbineconvertskineticenergy(fromwind)intomechanicalenergy.Windturbinesarelarge,computer-controlledstructureswithlongrotatingblades.Turbinesaremountedontopoftalltowersforoptimalaccesstowind.Themostcommontypeofwindturbine

4、forproducingelectricityhasahorizontalaxis,withtwoormoreaerodynamicbladesmountedonthehorizontalshaft.Withahorizontal-axismachine,thebladetipscantravelatseveraltimesthewindspeed,whichresultsinahighefficiency.Thebladeshapeisdesignedbyusingthesameaerodynamictheoryasforaircraft.Modernwindturbinesarenowas

5、largeas3to5MW(3,000to5,000KW.)WindTurbineDiagramHubofRotorGearboxLowSpeedShaftTowerHighSpeedShaftYawMechanismHydraulicSystemElectricalGeneratorRotorBladesNacelleAnemometerandtheWindWaneElectronicControllerCoolingUnitWindTurbineComponentsThenacellecontainsthekeycomponentsofthewindturbine,includingthe

6、gearbox,andtheelectricalgenerator.Therotorbladescapturethewindandtransferitspowertotherotorhub.Thehuboftherotorisattachedtothelowspeedshaftofthewindturbine.Thelowspeedshaftofthewindturbineconnectstherotorhubtothegearbox.Theshaftcontainspipesforthehydraulicssystemtoenabletheaerodynamicbrakestooperate

7、.Thegearboxhasthelowspeedshafttotheleft.Itmakesthehighspeedshafttotherightturnapproximately50timesfasterthanthelowspeedshaft.Thehighspeedshaftrotateswithapproximately1,500revolutionsperminute(RPM)andd