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Numerical study on the performance of a wave energy converter with three hinged bodies

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  • Yu, Hui-Feng
  • Zhang, Yong-Liang
  • Zheng, Si-Ming

Abstract

In this paper, we propose a novel wave energy converter (hereinafter called Wave Loong®) consisting of two rafts hinged at each raft end and one pendulum hung at the joint of the rafts. A mathematical model based on the linear wave theory with the consideration of three bodies hinged together and various connection conditions between any two of the three bodies is presented to investigate the performance of the converter. The effect of damping coefficient, raft length, pendulum length, pendulum radius of gyration, pendulum mass and wavelength on capture width ratio is analysed, and the mechanisms underlying wave energy capture are explored. The comparison of capture width ratios for the converter with and without a pendulum is made to demonstrate that the performance of the Wave Loong® is much better than a conventional raft-type WEC in terms of capture width ratio and wavelength bandwidth. The comparison of capture width ratios for the WECs with various connection conditions between any two of a fore raft, aft raft and pendulum is also made to evaluate which kind of connection condition is superior.

Suggested Citation

  • Yu, Hui-Feng & Zhang, Yong-Liang & Zheng, Si-Ming, 2016. "Numerical study on the performance of a wave energy converter with three hinged bodies," Renewable Energy, Elsevier, vol. 99(C), pages 1276-1286.
    • Handle: RePEc:eee:renene:v:99:y:2016:i:c:p:1276-1286
    DOI: 10.1016/j.renene.2016.08.023
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    References listed on IDEAS

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    1. Babarit, A. & Hals, J. & Muliawan, M.J. & Kurniawan, A. & Moan, T. & Krokstad, J., 2012. "Numerical benchmarking study of a selection of wave energy converters," Renewable Energy, Elsevier, vol. 41(C), pages 44-63.
    2. Henderson, Ross, 2006. "Design, simulation, and testing of a novel hydraulic power take-off system for the Pelamis wave energy converter," Renewable Energy, Elsevier, vol. 31(2), pages 271-283.
    3. Lin, Yonggang & Bao, Jingwei & Liu, Hongwei & Li, Wei & Tu, Le & Zhang, Dahai, 2015. "Review of hydraulic transmission technologies for wave power generation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 50(C), pages 194-203.
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    Cited by:

    1. Liu, Changhai & Hu, Min & Gao, Wenzhi & Chen, Jian & Zeng, Yishan & Wei, Daozhu & Yang, Qingjun & Bao, Gang, 2021. "A high-precise model for the hydraulic power take-off of a raft-type wave energy converter," Energy, Elsevier, vol. 215(PA).
    2. Li, Qiaofeng & Mi, Jia & Li, Xiaofan & Chen, Shuo & Jiang, Boxi & Zuo, Lei, 2021. "A self-floating oscillating surge wave energy converter," Energy, Elsevier, vol. 230(C).
    3. Hao Tian & Zijian Zhou & Yu Sui, 2019. "Modeling and Validation of an Electrohydraulic Power Take-Off System for a Portable Wave Energy Convertor with Compressed Energy Storage," Energies, MDPI, vol. 12(17), pages 1-15, September.
    4. Fernando Jaramillo-Lopez & Brian Flannery & Jimmy Murphy & John V. Ringwood, 2020. "Modelling of a Three-Body Hinge-Barge Wave Energy Device Using System Identification Techniques," Energies, MDPI, vol. 13(19), pages 1-16, October.
    5. Tongphong, Watchara & Kim, Byung-Ha & Kim, In-Cheol & Lee, Young-Ho, 2021. "A study on the design and performance of ModuleRaft wave energy converter," Renewable Energy, Elsevier, vol. 163(C), pages 649-673.
    6. Ni, Wenchi & Zhang, Xu & Zhang, Wei & Liang, Shuangling, 2021. "Numerical investigation of adaptive damping control for raft-type wave energy converters," Renewable Energy, Elsevier, vol. 175(C), pages 520-531.
    7. Wang, Chen & Zhang, Yongliang & Deng, Zhengzhi, 2022. "A novel dual-chamber oscillating water column system with dual lip-wall pitching motions for wave energy conversion," Energy, Elsevier, vol. 246(C).

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