후류에 의한 풍력터빈의 피로하중 특성
Characteristics of Fatigue Load in a Wind Turbine by the Wake
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초록
Thewakegeneratedbyawindturbinehasaneffectonperformanceofadownstream windturbineaswellas mechanicalloads.Thispaperinvestigatedcharacteristicsoffatigueloadatthebladerootduetothewakeeffects andquantitativelyanalyzeditseffectsatoperatingconditionofa5MW tripodoffshorewindturbineusingBladed 4.1software.Thewakeeffectswasstudiedthewaythewake'scenterpositionmovefrom therotorcentertothe bladetiptothefar-away positionwherethewakedoesn'taffectthewindturbine.Whenwake'scenterwas locatedonthebladetiportherotorcenter,damageequivalentfatigueloadwashigherthanotherpositions.Itwas upto10∼14% comparedtothoseofnon-wakecase.Resultsofthisstudywouldbehelpfultodesignwindturbines andwindfarmstohavelifetimesmorethan20yearsofthewindturbine.
Abstract
Thewakegeneratedbyawindturbinehasaneffectonperformanceofadownstream windturbineaswellas mechanicalloads.Thispaperinvestigatedcharacteristicsoffatigueloadatthebladerootduetothewakeeffects andquantitativelyanalyzeditseffectsatoperatingconditionofa5MW tripodoffshorewindturbineusingBladed 4.1software.Thewakeeffectswasstudiedthewaythewake'scenterpositionmovefrom therotorcentertothe bladetiptothefar-away positionwherethewakedoesn'taffectthewindturbine.Whenwake'scenterwas locatedonthebladetiportherotorcenter,damageequivalentfatigueloadwashigherthanotherpositions.Itwas upto10∼14% comparedtothoseofnon-wakecase.Resultsofthisstudywouldbehelpfultodesignwindturbines andwindfarmstohavelifetimesmorethan20yearsofthewindturbine.
참고문헌 (12)
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