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Effects of heave plates on the global performance of a multi-unit floating offshore wind turbine

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  • Jang, Ha-Kun
  • Park, Sewan
  • Kim, Moo-Hyun
  • Kim, Kyong-Hwan
  • Hong, Keyyong

Abstract

This paper aims to investigate the heave-plate effects on the behavior of a multi-unit floating offshore wind turbine (MUFOWT). The global performance of the large-scale, square-shape, semi-submersible floating platform equipped with 4 wind turbines at each corner, and 24 wave energy converters on frames along near-waterline is numerically simulated in time domain by using the in-house turbine-floater-mooring fully-coupled dynamic analysis program, MUFOWT. Cases with and without heave plates are systematically compared to identify the role of heave plates. For verification, an independent 1/50-scaled experiment was conducted by authors in the Korea Research Institute of Ships and Ocean Engineering's (KRISO) 3D wave basin. The numerical results with heave plates are extensively compared against the physical model-test results. Finally, the global performance results under survival-storm conditions, in which the WECs and blades of wind turbines are fixed, with and without heave plates are systematically investigated. The findings indicate that the heave plates are effective in reducing heave and pitch motions, and shift their natural frequencies with a minimal increase of mass.

Suggested Citation

  • Jang, Ha-Kun & Park, Sewan & Kim, Moo-Hyun & Kim, Kyong-Hwan & Hong, Keyyong, 2019. "Effects of heave plates on the global performance of a multi-unit floating offshore wind turbine," Renewable Energy, Elsevier, vol. 134(C), pages 526-537.
    • Handle: RePEc:eee:renene:v:134:y:2019:i:c:p:526-537
    DOI: 10.1016/j.renene.2018.11.033
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    Cited by:

    1. Zhou, Binzhen & Hu, Jianjian & Jin, Peng & Sun, Ke & Li, Ye & Ning, Dezhi, 2023. "Power performance and motion response of a floating wind platform and multiple heaving wave energy converters hybrid system," Energy, Elsevier, vol. 265(C).
    2. Zhongliang Meng & Yun Chen & Shizhen Li, 2022. "The Shape Optimization and Experimental Research of Heave Plate Applied to the New Wave Energy Converter," Energies, MDPI, vol. 15(4), pages 1-12, February.
    3. Pei Zhang & Shugeng Yang & Yan Li & Jiayang Gu & Zhiqiang Hu & Ruoyu Zhang & Yougang Tang, 2020. "Dynamic Response of Articulated Offshore Wind Turbines under Different Water Depths," Energies, MDPI, vol. 13(11), pages 1-20, June.

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