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Direct-drive wave energy converters (WECs) mainly consist of a buoy, a linear generator, and electrical power conversion systems. This paper focus on the optimization of buoy geometries and improvement of the electrical power conversion unit of a direct-drive WEC used in irregular waves. By studying the influence of buoy shape and dimension on hydrodynamic performance of the WEC, a conical buoy with specified parameters is determined to improve the efficiency of wave energy capture. And a novel voltage smoothing unit is designed and verified with simulation to rectify the induced voltage of the WEC.

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Hydrodynamic Performance Analysis and Voltage Regulation of a Direct-Drive Wave Energy Converter in Irregular Waves

  • 会议论文

  • 发表日期：

    2025年

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  • Hailian Jing,
  • Heng Zhou,
  • Yao Zhang,
  • Yefei Zhang,
  • Ruixian Wang,
  • Wei Liu

摘要

Direct-drive wave energy converters (WECs) mainly consist of a buoy, a linear generator, and electrical power conversion systems. This paper focus on the optimization of buoy geometries and improvement of the electrical power conversion unit of a direct-drive WEC used in irregular waves. By studying the influence of buoy shape and dimension on hydrodynamic performance of the WEC, a conical buoy with specified parameters is determined to improve the efficiency of wave energy capture. And a novel voltage smoothing unit is designed and verified with simulation to rectify the induced voltage of the WEC.