Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines
Among the renewable energy technologies, offshore wind energy is expected to provide a significant contribution for the achievement of the European Renewable Energy (RE) targets for the next future. In this framework, the increase of generated power combined with the alleviation of vibratory loads a...
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Online Access: | http://hdl.handle.net/11590/404960 https://doi.org/10.1115/OMAE2021-63316 |
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ftunivroma3iris:oai:iris.uniroma3.it:11590/404960 2024-02-27T08:36:12+00:00 Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines Pustina L. Pasquali C. Serafini J. Lugni C. Gennaretti M. ASME Pustina, L. Pasquali, C. Serafini, J. Lugni, C. Gennaretti, M. 2021 http://hdl.handle.net/11590/404960 https://doi.org/10.1115/OMAE2021-63316 eng eng American Society of Mechanical Engineers (ASME) info:eu-repo/semantics/altIdentifier/isbn/978-0-7918-8519-2 ispartofbook:Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 2021 40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021 volume:9 http://hdl.handle.net/11590/404960 doi:10.1115/OMAE2021-63316 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85117119614 info:eu-repo/semantics/conferenceObject 2021 ftunivroma3iris https://doi.org/10.1115/OMAE2021-63316 2024-01-31T17:43:03Z Among the renewable energy technologies, offshore wind energy is expected to provide a significant contribution for the achievement of the European Renewable Energy (RE) targets for the next future. In this framework, the increase of generated power combined with the alleviation of vibratory loads achieved by application of suitable advanced control systems can lead to a beneficial LCOE (Levelized Cost Of Energy) reduction. This paper defines a control strategy for increasing floating offshore wind turbine lifetime through the reduction of vibratory blade and hub loads. To this purpose a Proportional-Integral (PI) controller based on measured blade-root bending moment feedback provides the blade cyclic pitch to be actuated. The proportional and integral gain matrices are determined by an optimization procedure whose objective is the alleviation of the vibratory loads due to a wind distributed linearly on the rotor disc. This control synthesis process relies on a linear, state-space, reduced-order model of the floating offshore wind turbine derived from aerohydroelastic simulations provided by the open-source tool OpenFAST. In addition to the validation of the proposed controller, the numerical investigation based on OpenFAST predictions examines also the corresponding control effort, influence on platform dynamics and expected blade lifetime extension. The outcomes show that, as a by-product of the alleviation of the vibratory out-of-plane bending moment at the blade root, significant reductions of both cumulative blade lifetime damage and sway and roll platform motion are achieved, as well. The maximum required control power is less than 1% of the generated power. Conference Object Arctic Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) Volume 9: Ocean Renewable Energy |
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Open Polar |
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Anagrafe della Ricerca d'Ateneo (Universitá degli studi Roma Tre) |
op_collection_id |
ftunivroma3iris |
language |
English |
description |
Among the renewable energy technologies, offshore wind energy is expected to provide a significant contribution for the achievement of the European Renewable Energy (RE) targets for the next future. In this framework, the increase of generated power combined with the alleviation of vibratory loads achieved by application of suitable advanced control systems can lead to a beneficial LCOE (Levelized Cost Of Energy) reduction. This paper defines a control strategy for increasing floating offshore wind turbine lifetime through the reduction of vibratory blade and hub loads. To this purpose a Proportional-Integral (PI) controller based on measured blade-root bending moment feedback provides the blade cyclic pitch to be actuated. The proportional and integral gain matrices are determined by an optimization procedure whose objective is the alleviation of the vibratory loads due to a wind distributed linearly on the rotor disc. This control synthesis process relies on a linear, state-space, reduced-order model of the floating offshore wind turbine derived from aerohydroelastic simulations provided by the open-source tool OpenFAST. In addition to the validation of the proposed controller, the numerical investigation based on OpenFAST predictions examines also the corresponding control effort, influence on platform dynamics and expected blade lifetime extension. The outcomes show that, as a by-product of the alleviation of the vibratory out-of-plane bending moment at the blade root, significant reductions of both cumulative blade lifetime damage and sway and roll platform motion are achieved, as well. The maximum required control power is less than 1% of the generated power. |
author2 |
ASME Pustina, L. Pasquali, C. Serafini, J. Lugni, C. Gennaretti, M. |
format |
Conference Object |
author |
Pustina L. Pasquali C. Serafini J. Lugni C. Gennaretti M. |
spellingShingle |
Pustina L. Pasquali C. Serafini J. Lugni C. Gennaretti M. Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines |
author_facet |
Pustina L. Pasquali C. Serafini J. Lugni C. Gennaretti M. |
author_sort |
Pustina L. |
title |
Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines |
title_short |
Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines |
title_full |
Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines |
title_fullStr |
Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines |
title_full_unstemmed |
Individual blade pitch control for alleviation of vibratory loads on Floating Offshore Wind Turbines |
title_sort |
individual blade pitch control for alleviation of vibratory loads on floating offshore wind turbines |
publisher |
American Society of Mechanical Engineers (ASME) |
publishDate |
2021 |
url |
http://hdl.handle.net/11590/404960 https://doi.org/10.1115/OMAE2021-63316 |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
info:eu-repo/semantics/altIdentifier/isbn/978-0-7918-8519-2 ispartofbook:Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE 2021 40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021 volume:9 http://hdl.handle.net/11590/404960 doi:10.1115/OMAE2021-63316 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85117119614 |
op_doi |
https://doi.org/10.1115/OMAE2021-63316 |
container_title |
Volume 9: Ocean Renewable Energy |
_version_ |
1792043189227487232 |