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Design optimization of dynamic inter-array cable systems for floating offshore wind turbines

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  • Rentschler, Manuel U.T.
  • Adam, Frank
  • Chainho, Paulo

Abstract

Despite its huge potential, floating offshore wind technology has not reached commercial maturity yet and numerous problems remain to be investigated. A major knowledge gap exists regarding the dynamic behavior of the freely moving inter-array cables, that link the floating turbines. This work presents a design approach based on a genetic algorithm. No publications on this topic were done before. The hybrid MATLAB-OrcaFlex tool considers fatigue life, performance in extreme weather events and economic evaluation criteria. Starting point for the dynamic analysis are cable configurations from hydrostatic optimization. Based on this hydrostatic optimization, a general design rule for lazy wave cables can be deduced in the depth range from 70 to 200m. To the best knowledge of the authors, such a generalized design recommendation is unique in literature. The methodology and peculiarities of the fatigue life assessment are discussed. Recommendable parameters for the algorithm and the simulations are presented. The optimization tool is applied on a case study with the OC4-DeepCwind model located at Portugal's Aguçadoura test site. In a parametric study, water depth and cable orientation are varied.

Suggested Citation

  • Rentschler, Manuel U.T. & Adam, Frank & Chainho, Paulo, 2019. "Design optimization of dynamic inter-array cable systems for floating offshore wind turbines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 111(C), pages 622-635.
    • Handle: RePEc:eee:rensus:v:111:y:2019:i:c:p:622-635
    DOI: 10.1016/j.rser.2019.05.024
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    References listed on IDEAS

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    1. Geir Skeie & Nils Sødahl & Oddrun Steinkjer, 2012. "Efficient Fatigue Analysis of Helix Elements in Umbilicals and Flexible Risers: Theory and Applications," Journal of Applied Mathematics, Hindawi, vol. 2012, pages 1-22, June.
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    Cited by:

    1. Song, Dongran & Yan, Jiaqi & Gao, Yang & Wang, Lei & Du, Xin & Xu, Zhiliang & Zhang, Zhihong & Yang, Jian & Dong, Mi & Chen, Yang, 2023. "Optimization of floating wind farm power collection system using a novel two-layer hybrid method," Applied Energy, Elsevier, vol. 348(C).
    2. Bórawski, Piotr & Bełdycka-Bórawska, Aneta & Jankowski, Krzysztof Jóżef & Dubis, Bogdan & Dunn, James W., 2020. "Development of wind energy market in the European Union," Renewable Energy, Elsevier, vol. 161(C), pages 691-700.
    3. Dapeng Zhang & Bowen Zhao & Keqiang Zhu, 2022. "Hydrodynamic Response of Ocean-Towed Cable-Array System under Different Munk Moment Coefficients," Sustainability, MDPI, vol. 14(3), pages 1-18, February.
    4. 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.

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