On turbulence models and lidar measurements for wind turbine control

<p>To provide comprehensive information that will assist in making decisions regarding the adoption of lidar-assisted control (LAC) in wind turbine design, this paper investigates the impact of different turbulence models on the coherence between the rotor-effective wind speed and lidar measur...

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Autores principales:	L. Dong, W. H. Lio, E. Simley
Formato:	article
Lenguaje:	EN
Publicado:	Copernicus Publications 2021
Materias:	Renewable energy sources TJ807-830
Acceso en línea:	https://doaj.org/article/f629987d65ed4dfead2f4c0cea822fba
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spelling	oai:doaj.org-article:f629987d65ed4dfead2f4c0cea822fba2021-11-30T13:19:11ZOn turbulence models and lidar measurements for wind turbine control10.5194/wes-6-1491-20212366-74432366-7451https://doaj.org/article/f629987d65ed4dfead2f4c0cea822fba2021-11-01T00:00:00Zhttps://wes.copernicus.org/articles/6/1491/2021/wes-6-1491-2021.pdfhttps://doaj.org/toc/2366-7443https://doaj.org/toc/2366-7451<p>To provide comprehensive information that will assist in making decisions regarding the adoption of lidar-assisted control (LAC) in wind turbine design, this paper investigates the impact of different turbulence models on the coherence between the rotor-effective wind speed and lidar measurement. First, the differences between the Kaimal and Mann models are discussed, including the power spectrum and spatial coherence. Next, two types of lidar systems are examined to analyze the lidar measurement coherence based on commercially available lidar scan patterns. Finally, numerical simulations have been performed to compare the lidar measurement coherence for different rotor sizes. This work confirms the association between the measurement coherence and the turbulence model. The results indicate that the lidar measurement coherence with the Mann turbulence model is lower than that with the Kaimal turbulence model. In other words, the potential value creation of LAC based on simulations during the wind turbine design phase, evaluated using the Kaimal turbulence model, will be diminished if the Mann turbulence model is used instead. In particular, the difference in coherence is more significant for larger rotors. As a result, this paper suggests that the impacts of different turbulence models should be considered uncertainties while evaluating the benefits of LAC.</p>L. DongW. H. LioE. SimleyCopernicus PublicationsarticleRenewable energy sourcesTJ807-830ENWind Energy Science, Vol 6, Pp 1491-1500 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Renewable energy sources TJ807-830
spellingShingle	Renewable energy sources TJ807-830 L. Dong W. H. Lio E. Simley On turbulence models and lidar measurements for wind turbine control
description	<p>To provide comprehensive information that will assist in making decisions regarding the adoption of lidar-assisted control (LAC) in wind turbine design, this paper investigates the impact of different turbulence models on the coherence between the rotor-effective wind speed and lidar measurement. First, the differences between the Kaimal and Mann models are discussed, including the power spectrum and spatial coherence. Next, two types of lidar systems are examined to analyze the lidar measurement coherence based on commercially available lidar scan patterns. Finally, numerical simulations have been performed to compare the lidar measurement coherence for different rotor sizes. This work confirms the association between the measurement coherence and the turbulence model. The results indicate that the lidar measurement coherence with the Mann turbulence model is lower than that with the Kaimal turbulence model. In other words, the potential value creation of LAC based on simulations during the wind turbine design phase, evaluated using the Kaimal turbulence model, will be diminished if the Mann turbulence model is used instead. In particular, the difference in coherence is more significant for larger rotors. As a result, this paper suggests that the impacts of different turbulence models should be considered uncertainties while evaluating the benefits of LAC.</p>
format	article
author	L. Dong W. H. Lio E. Simley
author_facet	L. Dong W. H. Lio E. Simley
author_sort	L. Dong
title	On turbulence models and lidar measurements for wind turbine control
title_short	On turbulence models and lidar measurements for wind turbine control
title_full	On turbulence models and lidar measurements for wind turbine control
title_fullStr	On turbulence models and lidar measurements for wind turbine control
title_full_unstemmed	On turbulence models and lidar measurements for wind turbine control
title_sort	on turbulence models and lidar measurements for wind turbine control
publisher	Copernicus Publications
publishDate	2021
url	https://doaj.org/article/f629987d65ed4dfead2f4c0cea822fba
work_keys_str_mv	AT ldong onturbulencemodelsandlidarmeasurementsforwindturbinecontrol AT whlio onturbulencemodelsandlidarmeasurementsforwindturbinecontrol AT esimley onturbulencemodelsandlidarmeasurementsforwindturbinecontrol
_version_	1718406600725626880

On turbulence models and lidar measurements for wind turbine control

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