Simplified Modelling of Wind and Wave Effects on the Performance of Floating Off-shore Wind Turbines (FOWT)

Authors

Keywords:

Wind Energy. Floating Offshore Wind Turbine. Pitch Angle. Wind-wave Misalignment Effects. Power Generation. Performance improvement.

Abstract

This project continues the development of the wind and wave effects onto the performance of Floating Offshore Wind Turbines (FOWT) initiated in past studies. The previous study characterized the influence of wind-wave misalignment onto the power response of a FOWT with special emphasis on the evolution of power generation with variable angle of wind and wave related to the blade-rotor plane. In this work, the variation of the power generation for constant pitch angle was established. In the present work, we develop a simplified model to determine the influence of the wind and wave effects on the performance of Floating Offshore Wind Turbines (FOWT) based on the established premises. Variation of wind turbine power generation due to changes in wind and wave direction has been modeled and simulated for the marine wind farm of Saint Brieuc (France) due to the variable wind and wave conditions that occur in that location, with a large misalignment between wind and wave direction for long periods of time. This characteristics makes the Saint Brieuc marine wind farm of special interest. This study describes the methodology to obtain the optimum conditions for a maximization of the power generation when wind and waves act either separated or combined. A simulation process is run to evaluate the evolution of the power generation at the FOWT when operating for relative wind angles from 0 to 360° and waves of periods from 0 to 10 sec and heave in the range of 0 to 14 m.

Author Biographies

  • Clara Martínez, Université Clermont-Auvergne

    Polytechnical Institute

    Post-graduate Student

  • Carlos Armenta-Déu, Complutense University of Madrid

    Renewable Energy Group

    Head of Unit

    Dpt. of Estrctura de la Materia. Física Térmica y Electrónica

References

C. Armenta-Déu and N. Racouchot (2021) Analysis of Wind-Wave Effect on Short-Term FOWT Power Loss, Journal of Offshore Structure and Technology, Volume 8, Issue 3, pp. 36-54, doi: https://doi.org/10.37591/joost.v8i3.1176

Huefei Wang, Xiangwu Zeng, Jiale Li, Xu Yang and Haijun Wang (2018) A review on recent advancements of substructures for Offshore Wind Turbine. Energy Conversion and Management, Volume 158, Pages 103-119

Stabilizing systems on Floating Wind Turbines. Web site. http://floatingwindfarm.weebly.com/stabilizing-systems.html

Comparison of rotor size with turbine rated capacity for onshore wind turbines currently being commercialized, https://www.researchgate.net/figure/Comparison-of-rotor-size-with-turbine-rated-capacity-for-onshore-wind-turbines-currently_fig3_295918972

Wind turbine performance, https://energieplus-lesite.be/theories/eolien8/rendement-des-eoliennes/

T. Burton, N. Jenkins, D. Sharpe, E. Bossanyi (2011), Wind Energy Handbook, Second edition, Ed. John Wiley and Sons, Pages 105-106

J.F. Manwell, J.G. McGowan, A.L. Rogers (2009) Wind Energy Explained, Theory, Design and Application, Ed. John Wiley and Sons, Print ISBN:9780471499725 |Online ISBN:9780470846124 |DOI:10.1002/0470846127

Saint-Brieuc: Iberdrola's first major offshore wind energy project in French Brittany

https://www.iberdrola.com/conocenos/lineas-negocio/proyectos-emblematicos/parque-eolico-marino-saint-brieuc

Meteoblue website https://www.meteoblue.com/fr/meteo/semaine/saint-brieuc_france_2981280

Information about Offshore wind turbine from Saint Brieuc

https://www.siemensgamesa.com/products-and-services/offshore/wind-turbine-sg-8-0-167-dd

N. Racouchot, C. Armenta Déu (2021) Study of the combined effects of wave’s movement and wind direction onto the performance of FOWT

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Published

2022-11-28

Issue

Vol. 9 No. 2 (2022)

Section

Research Article

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