Co-located offshore wind–wave energy systems: Can motion suppression and reliable power generation be achieved simultaneously?

Fantai Meng, Nataliia Sergiienko, Boyin Ding, Binzhen Zhou, Leandro Souza Pinheiro Da Silva, Benjamin Cazzolato and Ye Li

Applied Energy, 2023, vol. 331, issue C, No S0306261922016300

Abstract: Floating offshore wind turbines (FOWTs) present a cost-competitive advantage over their fixed-bottom counterparts, but also have technical challenges of achieving the desired stability and power reliability of the wind turbine. It is believed that co-locating of wave energy converters (WECs) and a FOWT can be the solution to these challenges. However, as the power generation of WECs is strongly associated with their hydrodynamic response, their addition tends to have a detrimental effect on the FOWT’s performance. To address this challenge, this paper proposes a framework for combining a FOWT with a small wave array that will make it possible to simultaneously achieve a reliable overall power production, and minimise the motion of a floating platform. It is done by properly controlling the hydrodynamic coupling between FOWT and WEC via a model predictive control approach. The results demonstrate that this novel approach manages to achieve platform stability and power reliability simultaneously, although it might require to collaborate with an aerodynamic control at high wind speeds. This work can be used as a guidance for operation of co-located wind–wave power systems.

Keywords: Offshore wind power; Power reliability; Platform stability; Co-located wind–wave power systems; Hydrodynamics coupling; Model predictive control (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (4)

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DOI: 10.1016/j.apenergy.2022.120373

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