水平轴风力机叶片优化设计及性能分析

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1、上海交通大学硕士学位论文BLADEOPTIMIZATIONDESIGNANDPERFORMANCEANALYSISOFHORIZONTALAXISWINDTURBINEABSTRACTWithenvironmentalpollutionandenergycrisisgettingmoreandmoreserious,windpowerattractsextensiveattentionfromresearchers.Windturbinebladeasthecorecomponentofwindenergyconvertersystem,itsperforma

2、ncedirectlyaffectspowercoefficient,componentsselection,regulationmethodandoperationofwindturbine.Thereforethewindturbinebladedesignisoneofthecoreresearchesinwindturbinetechnology.Inthispaper,abladeoptimizationdesignplatformofwindturbineispresented.5MWhorizontalaxiswindturbinebladeis

3、designedbythisplatformwithdifferentoptimumgoalandoptimumvarieties.Theaerodynamicperformanceandstructuralloadsofthebladesarealsostudiedhere.Themaincontentsare:(1)UsemathematicalsoftwareMatlabandwindturbinesimulatorcodeFASTtobuildbladeoptimizationdesignplatformbasedongeneticoptimizati

4、onalgorithm.20kWwindturbinebladeisredesignedhere.Throughthecomparisonandanalysis,feasibilityofthedesignplatformisvalidated.(2)5MWwindturbinebladeisdesignedbythebladeoptimizationdesignplatformwithbladechordlengthandtwistangleradialdistribution,tipspeedratioandnumberofwindturbineblade

5、asdesignoptimumvarieties,andmaximumpowercoefficientandlowestbladeloadasdesignoptimumgoals.Throughanalysisofaerodynamicperformance,thebladegeometrystructurewithexcellentandcomprehensiveperformanceisobtained.(3)Optimizedbladeof5MWwindturbineissimplifiedthrough3万方数据ABSTRACTdifferenteng

6、ineeringprocess.Throughthecomparativeanalysis,thebestbladegeometryisobtained.Thenthevibrationmodeandloadconditionsofthebladearestudied.KEYWORDS:Windturbineblade,optimizationdesign,aerodynamicperformanceanalysis,structuralloadanalysis4万方数据上海交通大学硕士学位论文目录摘要.............................

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