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Full-coupled analysis of offshore floating wind turbine supported by very large floating structure with consideration of hydroelasticity

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  • Li, Liang

Abstract

A multi-bodies hydroelastic model is developed and coupled to the full aero-hydro-servo-elastic analysis of a VLFS (very large floating structure) floating wind turbine. The proposed hydroelastic model discretizes the VLFS into a set of interconnected submodules. The hydrodynamic load acting on the entire VFLS is lumped to the mass center of submodules whilst the structural flexibility is represented by the finite element model used to connect submodules. The multi-bodies character makes the developed hydroelastic model robust to the floating structure and convenient to be embedded into coupled dynamic modelling of offshore floating wind turbines. The established model is validated against model test first and subsequently coupled to the numerical model of a moored VFLS floating wind turbine. The wind turbine power production, VFLS flexible deformation and structural loads are investigated. The analysis results reveal the significance of hydroelasticity on wind turbine power production and structural dynamics.

Suggested Citation

  • Li, Liang, 2022. "Full-coupled analysis of offshore floating wind turbine supported by very large floating structure with consideration of hydroelasticity," Renewable Energy, Elsevier, vol. 189(C), pages 790-799.
    • Handle: RePEc:eee:renene:v:189:y:2022:i:c:p:790-799
    DOI: 10.1016/j.renene.2022.03.063
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    References listed on IDEAS

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    1. Li, Liang & Gao, Yan & Yuan, Zhiming & Day, Sandy & Hu, Zhiqiang, 2018. "Dynamic response and power production of a floating integrated wind, wave and tidal energy system," Renewable Energy, Elsevier, vol. 116(PA), pages 412-422.
    2. Li, Liang & Gao, Yan & Hu, Zhiqiang & Yuan, Zhiming & Day, Sandy & Li, Haoran, 2018. "Model test research of a semisubmersible floating wind turbine with an improved deficient thrust force correction approach," Renewable Energy, Elsevier, vol. 119(C), pages 95-105.
    3. Cheng, Zhengshun & Wen, Ting Rui & Ong, Muk Chen & Wang, Kai, 2019. "Power performance and dynamic responses of a combined floating vertical axis wind turbine and wave energy converter concept," Energy, Elsevier, vol. 171(C), pages 190-204.
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    Cited by:

    1. Zhanpu Xue & Hao Zhang & Yunguang Ji, 2023. "Dynamic Response of a Flexible Multi-Body in Large Wind Turbines: A Review," Sustainability, MDPI, vol. 15(8), pages 1-25, April.

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