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Theoretical modeling of a co-located system with a floating wind platform and vertical truncated cylinders array

Author

Listed:
  • Zhu, Kai
  • Zheng, Siming
  • Michele, Simone
  • Cao, Feifei
  • Shi, Hongda

Abstract

Combined floating offshore wind turbines (FOWTs), wave energy converters (WECs), and floating solar photovoltaics (FPVs) systems have the potential to provide cost-effective solutions for offshore multi-energy complementation and structure protection. In this study, a theoretical model based on the potential flow theory and eigenfunction matching method is utilized to study wave diffraction and radiation by a co-located system, in which the main components of the wind platform and WECs are made of vertical cylindrical floats. Based on the displacement constraint matrix, coupled equations of motion are developed to calculate the kinematic response of the co-located systems. After running the convergence analysis and model validation, the present model is employed to perform a multiparameter impact analysis. Case studies are presented to clarify the effects of the WEC radius, draft, layout, power take-off (PTO) system, and incident wave heading and frequency on the hydrodynamic coefficient, wave energy capture width, and motion response of the wind platform. Our findings highlight that several factors play a crucial role in the performance of the co-located system, more importantly, that the theoretical model developed in this study is capable of effectively predicting the wave-structure interactions in wave fields, making it applicable to future wave farm projects.

Suggested Citation

  • Zhu, Kai & Zheng, Siming & Michele, Simone & Cao, Feifei & Shi, Hongda, 2024. "Theoretical modeling of a co-located system with a floating wind platform and vertical truncated cylinders array," Renewable Energy, Elsevier, vol. 223(C).
    • Handle: RePEc:eee:renene:v:223:y:2024:i:c:s0960148124000909
    DOI: 10.1016/j.renene.2024.120025
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