Articles | Volume 3, issue 1
Wind Energ. Sci., 3, 395–408, 2018
https://doi.org/10.5194/wes-3-395-2018
Wind Energ. Sci., 3, 395–408, 2018
https://doi.org/10.5194/wes-3-395-2018

Research article 14 Jun 2018

Research article | 14 Jun 2018

Determination of optimal wind turbine alignment into the wind and detection of alignment changes with SCADA data

Niko Mittelmeier and Martin Kühn

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Latest update: 20 Jan 2022
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Short summary
Upwind horizontal axis wind turbines need to be aligned with the main wind direction to maximize energy yield. This paper presents new methods to improve turbine alignment and detect changes during operational lifetime with standard nacelle met mast instruments. The flow distortion behind the rotor is corrected with a multilinear regression model and two alignment changes are detected with an accuracy of ±1.4° within 3 days of operation after the change is introduced.