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Multi-objective optimization of co-located wave-wind farm layouts supported by genetic algorithms and numerical models

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  • Teixeira-Duarte, Felipe
  • Rosa-Santos, Paulo
  • Taveira-Pinto, Francisco

Abstract

This study introduces a novel methodology for optimizing Wave Energy Converter (WEC) positioning in an array using a continuous domain, surpassing the traditional fixed layout approaches. The Wave Energy Park Layout Assessment Index (WLA), which integrates the wave protection factor (HRA) and power absorption efficiency (q-factor), is employed to evaluate the performance of WEC farms. To enhance computational efficiency, unsupervised classification methods, such as k-means clustering, are used to reduce the number of sea states while accurately representing wave energy, preserving 90 % of incoming wave energy. Genetic algorithms, integrating the SNL-SWAN hydrodynamic model, are then used to optimize WEC layout by balancing exploration and computational cost, maintaining solution diversity, and avoiding premature convergence. Compared to the non-optimized designs, the proposed method increases absorbed wave power by 87 % and wave height reduction by 46 %. The study acknowledges trade-offs between objectives and area restrictions, and provides an open-source code for further research and development in WEC farm optimization. This integrated approach aims to enhance the efficiency and effectiveness of WEC farm designs, offering a robust framework for future advancements in wave energy extraction.

Suggested Citation

  • Teixeira-Duarte, Felipe & Rosa-Santos, Paulo & Taveira-Pinto, Francisco, 2025. "Multi-objective optimization of co-located wave-wind farm layouts supported by genetic algorithms and numerical models," Renewable Energy, Elsevier, vol. 241(C).
    • Handle: RePEc:eee:renene:v:241:y:2025:i:c:s0960148125000242
    DOI: 10.1016/j.renene.2025.122362
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    References listed on IDEAS

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