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Characteristics of a two-dimensional periodic wave energy converter array

Author

Listed:
  • Jin, Huaqing
  • Zhang, Haicheng
  • Zheng, Siming
  • Xu, Daolin

Abstract

This study concentrates on the hydrodynamics of wave energy converters (WECs) consisting of an array of periodic buoys. The interaction between the bodies and waves was solved by a precise analytical method. The intrinsic relationships between wave propagation, energy capture, and array response are analyzed. Bragg resonance was found not only in scattering waves but also in radiation waves. The radiation wave is affected by different power take-off (PTO) damping, which could lead to incoming waves travelling freely through the array or being prevented through the array. The results show that Bragg resonance reduces the extraction efficiency significantly, and each device is affected to a different degree. In addition, this study reveals that there is collective behavior in the periodic WECs, all bodies in the array oscillate with identical amplitude at the Bragg resonance frequencies. Furthermore, the parametric effects on the hydrodynamic performance are investigated. The result of the study may provide useful guidance for the practical design of the WEC array.

Suggested Citation

  • Jin, Huaqing & Zhang, Haicheng & Zheng, Siming & Xu, Daolin, 2024. "Characteristics of a two-dimensional periodic wave energy converter array," Renewable Energy, Elsevier, vol. 222(C).
    • Handle: RePEc:eee:renene:v:222:y:2024:i:c:s0960148123017494
    DOI: 10.1016/j.renene.2023.119834
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