Control-oriented modelling of wind direction variability

S Dallas, A Stock, E Hart - Wind Energy Science Discussions, 2023 - wes.copernicus.org
Wind direction variability significantly affects the performance and lifetime of wind turbines
and wind farms. Accurately modelling wind direction variability and understanding the …

Effect investigation of yaw on wind turbine performance based on SCADA data

J Dai, X Yang, W Hu, L Wen, Y Tan - Energy, 2018 - Elsevier
Due to the time-varying wind direction, yaw operation of wind turbines is a common state.
Under yaw, the aerodynamic behavior of wind turbines is complicated, and also causes …

Wind turbine systematic yaw error: Operation data analysis techniques for detecting it and assessing its performance impact

D Astolfi, F Castellani, M Becchetti, A Lombardi, L Terzi - Energies, 2020 - mdpi.com
The widespread availability of wind turbine operation data has considerably boosted the
research and the applications for wind turbine monitoring. It is well established that a …

Improving wind turbine efficiency through detection and calibration of yaw misalignment

B Jing, Z Qian, Y Pei, L Zhang, T Yang - Renewable Energy, 2020 - Elsevier
Yaw misalignment has a serious impact on energy capture, power quality and health status
of wind turbine. However, most detection and calibration methods require additional …

Distribution of mean kinetic energy around an isolated wind turbine and a characteristic wind turbine of a very large wind farm

G Cortina, M Calaf, RB Cal - Physical Review Fluids, 2016 - APS
An isolated wind turbine and a very large wind farm are introduced into large-eddy
simulations of an atmospheric boundary layer. The atmospheric flow is forced with a …

A generalized framework for reduced‐order modeling of a wind turbine wake

N Hamilton, B Viggiano, M Calaf, M Tutkun… - Wind Energy, 2018 - Wiley Online Library
A reduced‐order model for a wind turbine wake is sought from large eddy simulation data.
Fluctuating velocity fields are combined in the correlation tensor to form the kernel of the …

Generalized analytical displacement model for wind turbine towers under aerodynamic loading

J Feliciano, G Cortina, A Spear, M Calaf - Journal of Wind Engineering and …, 2018 - Elsevier
The goal of this work is two-fold: 1) to determine the angular deflection and displacement of
the NREL 5 MW reference wind turbine tower under different atmospheric thermal …

Data-driven method for wind turbine yaw angle sensor zero-point shifting fault detection

Y Pei, Z Qian, B Jing, D Kang, L Zhang - Energies, 2018 - mdpi.com
Wind turbine yaw control plays an important role in increasing the wind turbine production
and also in protecting the wind turbine. Accurate measurement of yaw angle is the basis of …

Wind turbine yaw control optimization and its impact on performance

D Astolfi, F Castellani, F Natili - Machines, 2019 - mdpi.com
The optimization of wind energy conversion efficiency has been recently boosting the
technology improvement and the scientific comprehension of wind turbines. In this context …

Turbulence characteristics of a thermally stratified wind turbine array boundary layer via proper orthogonal decomposition

N Ali, G Cortina, N Hamilton, M Calaf… - Journal of Fluid …, 2017 - cambridge.org
A large eddy simulation framework is used to explore the structure of the turbulent flow in a
thermally stratified wind turbine array boundary layer. The flow field is driven by a constant …