기상탑 차폐 영향에 따른 측정 풍속의 오차 분석
The Error Analysis of measuring wind speed on Met Mast Shading Effect
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초록
Intheperformancetestforwindturbinesofmedium andlarge,Thereferencemet-mastshouldbeinstalledfor measurementreferencewindspeedasIEC61400-12-1standardsanddesignofboomsformountedananemometer mustbeconsideredexactly.Boom-mountedcupanemometerareinfluencedbyflow distortionofthemastandthe boom.Thereforedesignofboomsmustbeimportantsothatflow distortionduetoboomsshouldbekeptbelow 0.5%.But,in some cases atsize ofmet-maststructure,the distance ofboom from mastis longerthen measurementofwindspeedisimpossiblebecauseofoscillationofboom-mountedanemometer.Inthispaper,We measuredawindspeedatseveralpointfrom mastandboom andweanalyzedtheerrorofwindspeedateach pointofmeasurement.Also,wewillsuggestacorrectionmethodusingthedatacurvefittingabouterrorsofwind speedbetweeneachpointofmountedanemometer.
Abstract
Intheperformancetestforwindturbinesofmedium andlarge,Thereferencemet-mastshouldbeinstalledfor measurementreferencewindspeedasIEC61400-12-1standardsanddesignofboomsformountedananemometer mustbeconsideredexactly.Boom-mountedcupanemometerareinfluencedbyflow distortionofthemastandthe boom.Thereforedesignofboomsmustbeimportantsothatflow distortionduetoboomsshouldbekeptbelow 0.5%.But,in some cases atsize ofmet-maststructure,the distance ofboom from mastis longerthen measurementofwindspeedisimpossiblebecauseofoscillationofboom-mountedanemometer.Inthispaper,We measuredawindspeedatseveralpointfrom mastandboom andweanalyzedtheerrorofwindspeedateach pointofmeasurement.Also,wewillsuggestacorrectionmethodusingthedatacurvefittingabouterrorsofwind speedbetweeneachpointofmountedanemometer.
참고문헌 (6)
- "IEC(InternationalElectrotechnicalCommission), IECStandard61400-12-1,Windturbines-Part12-1:Powerperformancemeasurements ofelectricityproducingwindturbines,1rd Ed", ~ (2005)
- "IEC(InternationalElectrotechnicalCommission), IECStandard61400-1,Windturbines-Part1:Designrequirements,3rdEd", ~ (2005)
- 육상풍력실증연구단지조성 연구사업, "한국에너지기술연구원", 지식경제부, ~ (2009)
- 김현구, "IEC 61400 풍력표준을 적용한 제주도 김녕 난류강도 특성분석", 한국태양에너지학회 논문집, 30(6), pp.59~65 (2010), 한국태양에너지학회
- J.F.Manwell, "WindEnergyExplained" (2002), JOHN WILEY & SONS
- "BTM Consultaps,InternationalWindenergy Development,WorldMarketupdate2010", ~ (2010)