Print Email Facebook Twitter Power performance testing according to IEC 61400-12-1 edition 2, 2017: Comparing the four methods Title Power performance testing according to IEC 61400-12-1 edition 2, 2017: Comparing the four methods Author Zeron, V. Wagenaar, J.W. Wachter, M. Publication year 2018 Abstract In this paper, a comparison is made between the four different power performance analysis methods as specified in the recently issued IEC 61400-12-1 edition 2, 2017 standard on “Power performance measurements of electricity producing wind turbines”. These methods include various combinations of meteorological mast and/or remote sensing device (RSD) measurements with the aim to explicitly incorporate the wind shear and wind veer across a wind turbine’s rotor plane. Also, this standard introduces for the first time the use of RSDs for power curve testing. The differences between these four methods are analyzed in terms of the power curve, the Annual Energy Production (AEP) and their uncertainty contributions. A test was performed at the ECN Wind turbine Test site Wieringermeer on a 2.5MW research machine, including a meteorological mast reaching close to tip height and a Leosphere WindCube V2 ground-based LiDAR. It was found that the case that combines the hub-height wind speed measurement of the anemometers assisted by the LiDAR at several heights shows the highest power curve and AEP values and the lowest uncertainty estimate. The case of the tall met-mast which uses only measurements from the anemometers at several heights shows the lowest AEP values and the highest uncertainty estimate. Furthermore, it was found that using the Rotor Equivalent Wind Speed (REWS) leads to a reduction in the standard deviation of the power output and therefore, in the uncertainties of the power curve as compared to the hub-height wind speed measurements Subject Energy EfficiencyEnergyEnergy / Geological Survey NetherlandsIEC61400-12-1 2017Large wind turbinesEquivalent wind speedPower curve,Annual energy productionUncertainty analysis To reference this document use: http://resolver.tudelft.nl/uuid:08200619-7fa2-4e19-a2f0-d57609cee57a TNO identifier 843278 Source WindEurope Conferentie in Hamburg, 25-28 September 2018, 1-10 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.