Modelling of Wind-Wave Misalignment for Floating Offshore Wind Turbines

Open Access

Year : 2021 | Volume : | Issue : 2 | Page : 18-35

    Carlos Armenta-Déu

  1. Nestor Racouchot

  1. Professor, Complutense University of Madrid, , Spain
  2. Physics Engineer, Polytechnical Institute. Université Clermont Auvergne, Aubière Cedex, France


The influence of the combined effects of wind and waves onto the performance of a floating offshore wind turbine (FOWT) is analyzed. A study of the wind conditions relative to the position of the aerodynamic rotor has been made, analyzing how the angle of incidence of the wind (angle of attack) varies with the wind direction and the inclination of the wind turbine mast as a consequence of the undulatory movement of the waves. This analysis should result in a theoretical model based on the variation of the angle of attack which allows the characterization of the turbine under the combined effect of the oscillation of the sea surface and changes in relative wind direction to the aerodynamic rotor. The results obtained from this research will allow designers and operators to properly manage the situation under which the FOWT is working for a cross action of wave movement and wind direction. A proposed method to compensate for the aforementioned changes in the aerodynamics of the turbine rotor is a so-called “pitch and yaw compensation” system that allows eliminating the effect produced by the variation in the angle of attack and, therefore, minimizing the effect of oscillation on the generated power generated.

Keywords: Modelling and simulation, floating offshore wind turbine, wind-wave misalignment, pitching and yaw compensation mechanism.

[This article belongs to Journal of Offshore Structure and Technology(joost)]

How to cite this article: Carlos Armenta-Déu, Nestor Racouchot Modelling of Wind-Wave Misalignment for Floating Offshore Wind Turbines joost 2021; 8:18-35
How to cite this URL: Carlos Armenta-Déu, Nestor Racouchot Modelling of Wind-Wave Misalignment for Floating Offshore Wind Turbines joost 2021 {cited 2021 Aug 25};8:18-35. Available from:

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1. Xu Kun, Larsen Kjell, Shao Yanlin, Zhang Min, Gao Zhen, Moan Torgeir. Design and comparative analysis of alternative mooring systems for floating wind turbines in shallow water with emphasis on ultimate limit state design. Ocean Eng. 2021;219. doi: 10.1016/j.oceaneng.2020.108377.
2. Kai-Tung Ma Yong Luo, Thomas Kwan Yongyan Wu Chapter 15. Mooring for floating wind turbines, Mooring System Engineering for Offshore Structures; 2019. p. 299-315.
3. Zhang L, Michailides C, Wang Y, Shi W. Moderate water depth effects on the response of a floating wind turbine. Structures. 2020;28:1435-48. doi: 10.1016/j.istruc.2020.09.067.
4. Xiaoni Wu Yu Hu. Ye Li, Jian Yang, Lei Duan, Tongguang Wang, Thomas Adcock, Zhiyu Jiang, Zhen Gao, Zhiliang Lin, Alistair Borthwick, Shijun Liao. Renew Sustain Energy Rev. 2019 Foundations of offshore wind turbines: A review;104:379-93.
5. Jiwei Li David E, Knapp Steven R, Schill Chris Roelfsema, Stuart Phinn Miles Silman, Joseph Mascaro Gregory P. Asner. Remote Sens Environ. 2019 Adaptive bathymetry estimation for shallow coastal waters using Planet Dove satellites;232.
6. Minxuan Sun Linjun Yu, Ping Zhang Qiangqiang Sun, Xin Jiao Danfeng Sun, Fei Lun. Coastal water bathymetry for critical zone management using regression tree models from Gaofen-6 imagery, Ocean & Coastal Management. Vol. 204; 2021.
7. Bergsma Erwin WJ, Almar R, Rolland A, Binet R, Brodie KL, Bak AS. Coastal morphology from space: A showcase of monitoring the topography-bathymetry continuum. Remote Sens Environ. 2021;261. doi: 10.1016/j.rse.2021.112469.
8. Mareike Leimeister Athanasios Kolios. Reliability-based design optimization of a spar-type floating offshore wind turbine support structure. Reliab Eng Syst Saf. 2021;213.
9. Amine Dabachi Mohamed, Abdellatif Rahmouni Otmane Bouksour. Design and aerodynamic performance of new Floating H-Darrieus Vertical Axis Wind Turbines. Mater Today Proc. 2020;30(4):899-904.
10. Marius Hegseth John, Bachynski Erin E, Bernt J. Leira. Reliab Eng Syst Saf. 2021 Effect of environmental modelling and inspection strategy on the optimal design of floating wind turbines;214.
11. ZhiyuJiang. Installation of offshore wind turbines: A technical review. Renew Sustain Energy Rev. 2021;139.
12. Casey Tina. One floating wind turbine good, two floating wind turbines better, CLEAN Power, Clean Technica.; 2021. Available from:
13. Froese Michelle. Atkins helps design world’s first multi-turbine floating offshore wind platform, Windpower Engineering Development; 2016. Available from: offshore-wind-platform/.
14. Musial W, Butterfield S, Boone A. Feasibility of floating platform systems for wind turbines, conference paper, 23rd ASME Wind Energy Symposium Reno, Nevada. National Renewable Energy Laboratory (NREL); 2004.
15. McGovern Michael. Floating wind sails to Spain, Wind Power Monthly; April 2019. Available from:
16. Two-headed floating offshore wind platform passes trials, the maritime executive; November 2020. Available from: offshore wind- platform-passes-trials.
17. Boo Sung Youn. Design Challenges of a hybrid platform with multiple wind turbines and wave energy converters. Proceedings of the 21st offshore symposium. Houston: Texas; February 2016 Section of the Society of Naval Architects and Marine Engineers (SNAME).
18. Zountouridou EI, Kiokes GC, Chakalis S, Georgilakis PS, Hatziargyriou ND. Offshore floating wind parks in the deep waters of Mediterranean Sea. Renew Sustain Energy Rev. 2015;51:433 48. doi: 10.1016/j.rser.2015.06.027.
19. Hayley Farr Benjamin. Ruttenberg, Ryan K. Walter, Yi-Hui Wang. Crow White 2021 Potential environmental effects of deep water floating offshore wind energy facilities, Ocean & Coastal Management, Vol. 207.
20. Díaz H, Guedes Soares C. An integrated GIS approach for site selection of floating offshore wind farms in the Atlantic continental European coastline. Renew Sustain Energy Rev. 2020;134. doi: 10.1016/j.rser.2020.110328.
21. Campanile A, Piscopo V, Scamardella A. Mooring design and selection for floating offshore wind turbines on intermediate and deep water depths. Ocean Eng. 2018;148:349-60. doi: 10.1016/j.oceaneng.2017.11.043.
22. Alkarem YR, Ozbahceci BO. A complemental analysis of wave irregularity effect on the hydrodynamic responses of offshore wind turbines with the semi-submersible platform. Appl Ocean Res. 2021;113. doi: 10.1016/j.apor.2021.102757.
23. Minnan Yue Qingsong Liu, Chun Li Qinwei Ding, Shanshan Cheng Haitian Zhu. Effects of heave plate on dynamic response of floating wind turbine Spar platform under the coupling effect of wind and wave. Ocean Eng. 2020;201.
24. Pustina L, Lugni C, Bernardini G, Serafini J, Gennaretti M. Control of power generated by a floating offshore wind turbine perturbed by sea waves. Renew Sustain Energy Rev. 2020;132. doi: 10.1016/j.rser.2020.109984.
25. Kaveh Jalili Yaoyu Li, Rotea Mario A. Pitch and roll motion control of a floating wind turbine with hybrid actuation, proceeding paper, ASME 2014 dynamic systems and control conference. San Antonio; October 22-24, 2014.
26. Zhengru Ren Roger Skjetne, Shankar Verma Amrit, ZhiyuJiang Zhen Gao, Henning Halse Karl. Active heave compensation of floating wind turbine installation using a catamaran construction vessel. Mar Struct. 2021;75.
27. Yang Feng, Song Qing-wang, Wang Lei, Zuo Shan, Li Sheng-shan. Wind and wave disturbances compensation to floating offshore wind turbine using improved individual pitch control based on fuzzy control strategy, abstract and applied analysis [Special Issue]. Finite-Time Control Estimation Complex Pract Dyn Syst. 2014;2014:Article ID 968384.
28. Ha Kwangtae, Truong Hoai Vu Anh, Dang Tri Dung, Ahn Kyoung Kwan. Recent control technologies for floating offshore wind energy system: a review. Int J Precis Eng Manuf Green Technol. 2020;8:281-301.
29. Zhang Zili, Høeg Christian. Dynamics and control of spar-type floating offshore wind turbines with tuned liquid column dampers, Structural Control Health Monitoring. The J Int Assoc Struct Control Monit. 2020;27, Issue 6.
30. Kun Xu Kjell Larsen, Yanlin Shao Min Zhang, Zhen Gao Torgeir Moan. Design and comparative analysis of alternative mooring systems for floating wind turbines in shallow water with emphasis on ultimate limit state design. Ocean Eng. 2021;219.
31. Anchoring systems, floating wind turbines. Available from:
32. Woellwarth Lydia. Floating wind: what are the mooring options? Energy Global; 2020. Available from: the-mooring-options/.
33. Díaz B, Rasulo M, Fontana Casey M, Arwade S, DeGroot D, Myers A, Landon Melissa E, Aubeny C. Efficient multiline anchor systems for floating offshore wind turbines, conference paper, Oceans 2016 MTS/IEEE Monterey; 2016.
34. Arias Raúl Rodríguez, Ruiz Álvaro Rodríguez, de Lena Alonso Verónica González Wind Farms O, editor. Mooring and anchoring, floating. Springer. p. 89-119.
35. Esteban MD, Couñago B, López-Gutiérrez JS, Negro V, Vellisco F. Gravity based support structures for offshore wind turbine generators: review of the installation process. Ocean Eng. 2015;110(A):281-91. doi: 10.1016/j.oceaneng.2015.10.033.
36. Armes David. How are offshore wind turbine installed? 2020. Available from:
37. Xiuhe Li Caichao Zhu, Zhixin Fan Xu Chen, Jianjun Tan. Effects of the yaw error and the wind-wave misalignment on the dynamic characteristics of the floating offshore wind turbine. Ocean Eng. 2020;199.
38. Yu Hu, Jian Yang, Charalampos Baniotopoulos, Xinger Wang, Xiaowei Deng. Ocean Eng. 2020 Dynamic analysis of offshore steel wind turbine towers subjected to wind, wave and current loading during construction;216.
39. Markus Lerch Mikel. De-Prada-Gil, Climent Molins. Renew Energy. 2019 The influence of different wind and wave conditions on the energy yield and downtime of a Spar-buoy floating wind turbine;136:1-14.
40. Chuang Tzu-Ching, Yang W, Yang R. Experimental and numerical study of a barge-type FOWT platform under wind and wave load. Ocean Eng. 2021;230. doi: 10.1016/j.oceaneng.2021.109015.
41. Sarmiento J, Iturrioz A, Ayllón V, Guanche R, Losada IJ. Experimental modelling of a multi-use floating platform for wave and wind energy harvesting. Ocean Eng. 2019;173:761-73. doi: 10.1016/j.oceaneng.2018.12.046.
42. Burton Tony, Sharpe David, Jenkins Nick, Bossanyi Ervin, Chapter 3, Ed. John Wiley and Sons. Wind Energy Handbook; 2001.
43. Renoud-Grappin A2021. Simulation using a scale model of the effects of wind rotor-blade bending on the performance of wind turbines, Renewable Energy Group. Faculty of Physics, Complutense University of Madrid, internal report.
44. Montero A. Effects of deformation in the rotor-blade of wind turbines: analysis of the rotor-blade geometry and mechanical loads [masters thesis]. Faculty of Physics, Complutense University of Madrid; 2021.
45. Saint-Brieuc Offshore Wind Farm, Saint-Brieuc: Iberdrola’s first large-scale offshore wind power project in Brittany. Available from: business/flagship- projects/saint-brieuc-offshore-wind-farm.
46. Saint-Brieuc offshore wind Farm, NS Energy. Available from:
47. Available from: https://www.Mété Last online access; 12/07/2021.
48. Pérez V, Armenta-Déu C. Pitching compensation system to improve Floating Offshore Wind Turbine Performance. Wind Eng. 2021.

Regular Issue Open Access Article
Volume 8
Issue 2
Received July 17, 2021
Accepted August 4, 2021
Published August 25, 2021