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Modeling aspects of a floating wind turbine for coupled wave–wind-induced dynamic analyses

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  • Karimirad, Madjid

Abstract

This paper deals with the numerical modeling of a catenary moored spar-type wind turbine in the integrated coupled analyses. The current spar-type wind turbine is inspired by the Hywind concept. In this paper, different hydrodynamic models based on the Morison formula, Pressure integration method and Panel method considering the mean drift, first and second order forces are studied. A floating wind turbine in deep water depth supporting a 5-MW turbine system is considered. Simo-Riflex (DeepC), HAWC2 and FAST codes are used to carry out the coupled wave–wind-induced analyses. The results show that the damping and inertia forces of the mooring lines are important for the tension responses; especially, the damping of the mooring lines can help to damp-out the high-frequency elastic-deformations of the mooring system. However, the motion responses are not significantly affected by the mooring line damping-effects. The drift and second order forces do not significantly affect the motion and tension responses. However, the heave motion is more affected by the drift and second order forces. The results indicate that either the Morison formula considering the instantaneous position of the structure or first order hydrodynamic forces based on the Panel method and considering the quadratic viscous forces can provide accurate results for the slender spar-type wind turbines. Considering the second order forces is found to be 10–15 times more time consuming while the responses are not significantly affected for the present floating wind turbine. The coupled aero-hydro-servo-elastic code-to-code comparison of HAWC2 and FAST codes shows that the dynamic motion responses, structural responses at the tower–spar interface and at the blade root as well as the power production are in good agreement.

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  • Karimirad, Madjid, 2013. "Modeling aspects of a floating wind turbine for coupled wave–wind-induced dynamic analyses," Renewable Energy, Elsevier, vol. 53(C), pages 299-305.
    • Handle: RePEc:eee:renene:v:53:y:2013:i:c:p:299-305
    DOI: 10.1016/j.renene.2012.12.006
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    Citations

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    Cited by:

    1. Chan, Kemin & Hong, Yu, 2018. "Simulation of Spar Type Floating Offshore Wind Turbine Subjected to Misaligned Wind-Wave Loading Using Conservation of Momentum Method," MPRA Paper 88777, University Library of Munich, Germany.
    2. Tjiu, Willy & Marnoto, Tjukup & Mat, Sohif & Ruslan, Mohd Hafidz & Sopian, Kamaruzzaman, 2015. "Darrieus vertical axis wind turbine for power generation II: Challenges in HAWT and the opportunity of multi-megawatt Darrieus VAWT development," Renewable Energy, Elsevier, vol. 75(C), pages 560-571.
    3. Borg, Michael & Collu, Maurizio, 2015. "Offshore floating vertical axis wind turbines, dynamics modelling state of the art. Part III: Hydrodynamics and coupled modelling approaches," Renewable and Sustainable Energy Reviews, Elsevier, vol. 46(C), pages 296-310.
    4. Weimin Chen & Shuangxi Guo & Yilun Li & Yijun Shen, 2021. "Impacts of Mooring-Lines Hysteresis on Dynamic Response of Spar Floating Wind Turbine," Energies, MDPI, vol. 14(8), pages 1-13, April.
    5. Xiangyuan Zheng & Huadong Zheng & Yu Lei & Yi Li & Wei Li, 2020. "An Offshore Floating Wind–Solar–Aquaculture System: Concept Design and Extreme Response in Survival Conditions," Energies, MDPI, vol. 13(3), pages 1-23, January.
    6. Antonutti, Raffaello & Peyrard, Christophe & Johanning, Lars & Incecik, Atilla & Ingram, David, 2016. "The effects of wind-induced inclination on the dynamics of semi-submersible floating wind turbines in the time domain," Renewable Energy, Elsevier, vol. 88(C), pages 83-94.
    7. Yichen Jiang & Guanqing Hu & Zhi Zong & Li Zou & Guoqing Jin, 2020. "Influence of an Integral Heave Plate on the Dynamic Response of Floating Offshore Wind Turbine Under Operational and Storm Conditions," Energies, MDPI, vol. 13(22), pages 1-18, November.
    8. Mohsen Sobhaniasl & Francesco Petrini & Madjid Karimirad & Franco Bontempi, 2020. "Fatigue Life Assessment for Power Cables in Floating Offshore Wind Turbines," Energies, MDPI, vol. 13(12), pages 1-19, June.
    9. Borg, Michael & Collu, Maurizio & Kolios, Athanasios, 2014. "Offshore floating vertical axis wind turbines, dynamics modelling state of the art. Part II: Mooring line and structural dynamics," Renewable and Sustainable Energy Reviews, Elsevier, vol. 39(C), pages 1226-1234.
    10. Karimirad, Madjid & Michailides, Constantine, 2015. "V-shaped semisubmersible offshore wind turbine: An alternative concept for offshore wind technology," Renewable Energy, Elsevier, vol. 83(C), pages 126-143.
    11. Meng, Qingshen & Hua, Xugang & Chen, Chao & Zhou, Shuai & Liu, Feipeng & Chen, Zhengqing, 2022. "Analytical study on the aerodynamic and hydrodynamic damping of the platform in an operating spar-type floating offshore wind turbine," Renewable Energy, Elsevier, vol. 198(C), pages 772-788.

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