Design, optimization and numerical modelling of a novel floating pendulum wave energy converter with tide adaptation

Abstract

A novel floating pendulum wave energy converter (WEC) with the ability of tide adaptation is designed and presented in this paper. Aiming to a high efficiency, the buoy’s hydrodynamic shape is optimized by enumeration and comparison. Furthermore, in order to keep the buoy’s well-designed leading edge always facing the incoming wave straightly, a novel transmission mechanism is then adopted, which is called the tidal adaptation mechanism in this paper. Time domain numerical models of a floating pendulum WEC with or without tide adaptation mechanism are built to compare their performance on various water levels. When comparing these two WECs in terms of their average output based on the linear passive control strategy, the output power of WEC with the tide adaptation mechanism is much steadier with the change of the water level and always larger than that without the tide adaptation mechanism.

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Correspondence to Da-hai Zhang.

Additional information

Foundation item: The work was financially supported by the National Natural Science Foundation of China (Grant No. 51579222), the Fundamental Research Funds for the Central Universities (Grant No. 2017XZZX00102A), and the Youth Funds of the State Key Laboratory of Fluid Power and Mechatronic Systems (Zhejiang University, Grant No. KLoFP_QN_1604).

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Yang, J., Zhang, Dh., Chen, Y. et al. Design, optimization and numerical modelling of a novel floating pendulum wave energy converter with tide adaptation. China Ocean Eng 31, 578–588 (2017). https://doi.org/10.1007/s13344-017-0066-6

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Keywords

  • wave energy
  • simulation
  • model analysis
  • tide adaptation