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Model Test and Sea Trial of a Multi-Absorber 1 MW Wave Energy Converter

Author

Listed:
  • Min Chen

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Songwei Sheng

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Yaqun Zhang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Zhenpeng Wang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Kunlin Wang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou 510640, China)

  • Jiaqiang Jiang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    Guangdong Provincial Key Laboratory of Renewable Energy, Guangzhou 510640, China)

Abstract

An innovative multi-absorber 1 MW wave energy converter (WEC), Nankun, is proposed for efficient wave energy extraction. It comprises a semi-submersible floating platform, a wave energy capture mechanism, a hydraulic energy conversion system, and a mooring system. The WEC operates by converting fluctuating wave power into stable electrical output through a unique sharp eagle-shaped wave absorber coupled with a hydraulic energy conversion module. Scaled model experiments (1:25) demonstrated energy-capture efficiency ranges predominantly between 30% and 50% across 0.8–1.4 s wave periods, with a peak of 56.17%. Analysis of the wave direction effect revealed that the device achieved significantly a higher energy capture at 180 deg compared with 0 deg wave headings, with a relative efficiency ratio of approximately 1.0:0.6~0.8. A full-scale prototype with 10 absorbers was deployed in the South China Sea, achieving grid connection in November 2023. Operational data confirmed viability and generation capacity, with the peak daily output reaching 9850 kWh and a cumulative production of 89,852 kWh over 20 days.

Suggested Citation

  • Min Chen & Songwei Sheng & Yaqun Zhang & Zhenpeng Wang & Kunlin Wang & Jiaqiang Jiang, 2025. "Model Test and Sea Trial of a Multi-Absorber 1 MW Wave Energy Converter," Energies, MDPI, vol. 18(17), pages 1-20, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:17:p:4711-:d:1742203
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    References listed on IDEAS

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    1. Yuehong Lu & Zafar A. Khan & Manuel S. Alvarez-Alvarado & Yang Zhang & Zhijia Huang & Muhammad Imran, 2020. "A Critical Review of Sustainable Energy Policies for the Promotion of Renewable Energy Sources," Sustainability, MDPI, vol. 12(12), pages 1-31, June.
    2. Dalton, G.J. & Alcorn, R. & Lewis, T., 2010. "Case study feasibility analysis of the Pelamis wave energy convertor in Ireland, Portugal and North America," Renewable Energy, Elsevier, vol. 35(2), pages 443-455.
    3. Diego Vicinanza & Lucia Margheritini & Jens Peter Kofoed & Mariano Buccino, 2012. "The SSG Wave Energy Converter: Performance, Status and Recent Developments," Energies, MDPI, vol. 5(2), pages 1-34, January.
    4. Margheritini, L. & Vicinanza, D. & Frigaard, P., 2009. "SSG wave energy converter: Design, reliability and hydraulic performance of an innovative overtopping device," Renewable Energy, Elsevier, vol. 34(5), pages 1371-1380.
    5. Leonard, Matthew D. & Michaelides, Efstathios E. & Michaelides, Dimitrios N., 2020. "Energy storage needs for the substitution of fossil fuel power plants with renewables," Renewable Energy, Elsevier, vol. 145(C), pages 951-962.
    6. Tedd, James & Peter Kofoed, Jens, 2009. "Measurements of overtopping flow time series on the Wave Dragon, wave energy converter," Renewable Energy, Elsevier, vol. 34(3), pages 711-717.
    7. Clément, Alain & McCullen, Pat & Falcão, António & Fiorentino, Antonio & Gardner, Fred & Hammarlund, Karin & Lemonis, George & Lewis, Tony & Nielsen, Kim & Petroncini, Simona & Pontes, M. -Teresa & Sc, 2002. "Wave energy in Europe: current status and perspectives," Renewable and Sustainable Energy Reviews, Elsevier, vol. 6(5), pages 405-431, October.
    8. Sheng, Songwei & Wang, Kunlin & Lin, Hongjun & Zhang, Yaqun & You, Yage & Wang, Zhenpeng & Chen, Aiju & Jiang, Jiaqiang & Wang, Wensheng & Ye, Yin, 2017. "Model research and open sea tests of 100 kW wave energy convertor Sharp Eagle Wanshan," Renewable Energy, Elsevier, vol. 113(C), pages 587-595.
    9. Wu, Bijun & Chen, Tianxiang & Jiang, Jiaqiang & Li, Gang & Zhang, Yunqiu & Ye, Yin, 2018. "Economic assessment of wave power boat based on the performance of “Mighty Whale” and BBDB," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P1), pages 946-953.
    10. Kofoed, Jens Peter & Frigaard, Peter & Friis-Madsen, Erik & Sørensen, Hans Chr., 2006. "Prototype testing of the wave energy converter wave dragon," Renewable Energy, Elsevier, vol. 31(2), pages 181-189.
    11. 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.
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