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

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 edg...

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Bibliographic Details
Published in:China ocean engineering 2017-10, Vol.31 (5), p.578-588
Main Authors: Yang, Jing, Zhang, Da-hai, Chen, Ying, Liang, Hui, Tan, Ming, Li, Wei, Ma, Xian-dong
Format: Article
Language:English
Subjects:
Adaptation
Buoys
Coastal Sciences
Design optimization
Engineering
Enumeration
Floating
Fluid- and Aerodynamics
Hydrodynamics
Marine & Freshwater Sciences
Mathematical models
Modelling
Numerical and Computational Physics
Oceanography
Offshore Engineering
Passive control
Simulation
Tidal energy
Tidal power
Tides
Water levels
Wave energy
Wave power
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Summary: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.
ISSN:0890-5487
2191-8945
DOI:10.1007/s13344-017-0066-6