Journal cover Journal topic
Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
https://doi.org/10.5194/wes-2017-8
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Brief communications
17 Feb 2017
Review status
This discussion paper is a preprint. A revision of this manuscript was accepted for the journal Wind Energy Science (WES) and is expected to appear here in due course.
Brief Communication: On the influence of vertical velocity profiles on the combined power output of two model wind turbines in yaw
Jannik Schottler, Agnieszka Hölling, Joachim Peinke, and Michael Hölling ForWind, University of Oldenburg, Institute of Physics, Oldenburg, Germany
Abstract. The effect of vertical velocity gradients on the total power output of two aligned model wind turbines as a function of yaw misalignment of the upstream turbine is studied experimentally. It is shown that asymmetries of the power output of the downstream turbine and the combined power of both with respect to the upstream turbine's yaw misalignment angle can be linked to the vertical velocity gradient of the inflow.

Citation: Schottler, J., Hölling, A., Peinke, J., and Hölling, M.: Brief Communication: On the influence of vertical velocity profiles on the combined power output of two model wind turbines in yaw, Wind Energ. Sci. Discuss., https://doi.org/10.5194/wes-2017-8, in review, 2017.
Jannik Schottler et al.
Jannik Schottler et al.

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Short summary
Recently, the concept of intentional derating of single wind turbines in order to increase the energy yield of a wind farm was studied intensively. Although the potential seems promising, the effects of atmospheric conditions need to be understood in greater detail. This study shows a strong influence of vertical velocity gradients on the power output of two model wind turbines, whereas the upstream turbine is derated by an intentional misalignment of the rotor and the inflow.
Recently, the concept of intentional derating of single wind turbines in order to increase the...
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