The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine

With recent advances in offshore floating wind and wave energy technology, questions have emerged as to whether the two technologies can be combined to reduce their overall levelised cost of energy. In this paper, the potential for combining a floating offshore wind turbine to a point absorbing wave...

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Autores principales:	David M. Skene, Nataliia Sergiienko, Boyin Ding, Benjamin Cazzolato
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	wave energy offshore floating wind energy wave-structure interactions Technology T
Acceso en línea:	https://doaj.org/article/b0df35a759974132848b447d4312ecd6
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spelling	oai:doaj.org-article:b0df35a759974132848b447d4312ecd62021-11-11T16:05:55ZThe Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine10.3390/en142173851996-1073https://doaj.org/article/b0df35a759974132848b447d4312ecd62021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/7385https://doaj.org/toc/1996-1073With recent advances in offshore floating wind and wave energy technology, questions have emerged as to whether the two technologies can be combined to reduce their overall levelised cost of energy. In this paper, the potential for combining a floating offshore wind turbine to a point absorbing wave energy converter is investigated. The focus of the investigation is how much power might be produced by a combined floating wind and wave energy converter system, and the resultant changes in motion of the floating wind platform. A model for the combined wave and wind system is developed which uses the standardised NREL OC3 5 MW spar type wind turbine and a cylindrical buoyant actuator (BA), which is attached to the spar via a generic wave power take-off system (modelled as a spring-damper system). Modelling is conducted in the frequency domain and the tests span a wide range of parameters, such as wave conditions, BA sizes, and power take-off coupling arrangements. It is found that the optimal (with respect to power production) BA size is a draft and radius of approximately 14 m. It is found that this BA can theoretically produce power in the range of 0.3 to 0.5 MW for waves with a significant wave height of 2 m, and has the potential to produce power greater or near to 1 MW for waves with a significant wave height of at least 3 m. However, it is also found that, in terms of the relative capture width, significantly smaller BAs are optimal, and that these smaller BA sizes less significantly alter the motion of the floating wind platform.David M. SkeneNataliia SergiienkoBoyin DingBenjamin CazzolatoMDPI AGarticlewave energyoffshore floating wind energywave-structure interactionsTechnologyTENEnergies, Vol 14, Iss 7385, p 7385 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	wave energy offshore floating wind energy wave-structure interactions Technology T
spellingShingle	wave energy offshore floating wind energy wave-structure interactions Technology T David M. Skene Nataliia Sergiienko Boyin Ding Benjamin Cazzolato The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine
description	With recent advances in offshore floating wind and wave energy technology, questions have emerged as to whether the two technologies can be combined to reduce their overall levelised cost of energy. In this paper, the potential for combining a floating offshore wind turbine to a point absorbing wave energy converter is investigated. The focus of the investigation is how much power might be produced by a combined floating wind and wave energy converter system, and the resultant changes in motion of the floating wind platform. A model for the combined wave and wind system is developed which uses the standardised NREL OC3 5 MW spar type wind turbine and a cylindrical buoyant actuator (BA), which is attached to the spar via a generic wave power take-off system (modelled as a spring-damper system). Modelling is conducted in the frequency domain and the tests span a wide range of parameters, such as wave conditions, BA sizes, and power take-off coupling arrangements. It is found that the optimal (with respect to power production) BA size is a draft and radius of approximately 14 m. It is found that this BA can theoretically produce power in the range of 0.3 to 0.5 MW for waves with a significant wave height of 2 m, and has the potential to produce power greater or near to 1 MW for waves with a significant wave height of at least 3 m. However, it is also found that, in terms of the relative capture width, significantly smaller BAs are optimal, and that these smaller BA sizes less significantly alter the motion of the floating wind platform.
format	article
author	David M. Skene Nataliia Sergiienko Boyin Ding Benjamin Cazzolato
author_facet	David M. Skene Nataliia Sergiienko Boyin Ding Benjamin Cazzolato
author_sort	David M. Skene
title	The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine
title_short	The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine
title_full	The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine
title_fullStr	The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine
title_full_unstemmed	The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine
title_sort	prospect of combining a point absorber wave energy converter with a floating offshore wind turbine
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b0df35a759974132848b447d4312ecd6
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The Prospect of Combining a Point Absorber Wave Energy Converter with a Floating Offshore Wind Turbine

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