TUTTE Project, Final Report

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Abstract

In the public research part of the TUTTE joint action, atmospheric conditions were measured by field campaigns carried out in an onshore and in an offshore wind farm located in Finland. Lidar measurements of wind flow, measurements of ambient temperature and pressure at hub height and ground level, and wind turbine SCADA data were analysed. Wind speed, wind shear and turbulence intensity along with seasonal variability of the wind at these two sites was investigated. Atmospheric stability was estimated by three different metrics. Diurnal and seasonal variability of potential temperature difference, which is included in two of the metrics, was explored. Wind farm wake effects and production losses due to wakes, topography and icing were analysed, and the influence of atmospheric stability on wind farm efficiency was examined. The offshore wind farm was modelled by open-source tools developed by The National Renewable Energy Laboratory (NREL) and the model was validated against wind farm SCADA data. VTT’s research team collaborated with Stanford University and NREL.
Original languageEnglish
PublisherVTT Technical Research Centre of Finland
Number of pages25
Publication statusPublished - Dec 2022
MoE publication typeD4 Published development or research report or study

Publication series

SeriesVTT Research Report
NumberVTT-R-00901-22

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