Open AccessField investigation on the influence of yaw misalignment on the propagation of wind turbine wakes
Author(s) -
Bromm Marc,
Rott Andreas,
Beck Hauke,
Vollmer Lukas,
Steinfeld Gerald,
Kühn Martin
Publication year - 2018
Publication title -
wind energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.743
H-Index - 92
eISSN - 1099-1824
pISSN - 1095-4244
DOI - 10.1002/we.2210
Subject(s) - nacelle , wake , turbine , inflow , marine engineering , wind power , aerodynamics , environmental science , aerospace engineering , deflection (physics) , wind speed , meteorology , engineering , physics , electrical engineering , optics
A comprehensive understanding of the wake development of wind turbines is essential for improving the power yield of wind farms and for reducing the structural loading of the turbines. Reducing the overall negative impact of wake flows on individual turbines in a farm is one goal of wind farm control. We aim to demonstrate the applicability of yaw control for deflecting wind turbine wakes in a full‐scale field experiment. For this purpose, we conducted a measurement campaign at a multimegawatt onshore wind turbine including inflow and wake flow measurements using ground‐ and nacelle‐based long‐range light detection and ranging devices. Yaw misalignments of the turbine with respect to the inflow direction of up to 20° were investigated. We were able to show that under neutral atmospheric conditions, these turbine misalignments cause lateral deflections of its wake. Larger yaw misalignments resulted in greater wake deflection. Because of the inherent struggle in capturing complex and highly dynamic ambient conditions in the field using a limited number of sensors, we particularly focused on providing a comprehensive and comprehensible description of the measurement setup, including the identification of potential uncertainties.