Chinese Journal of Ship Research, Volume. 19, Issue 4, 71(2024)

Design and hydrodynamic performance of 15 MW Spar-type floating offshore wind turbine platform

Lin LIN1...2, Mingyang CHEN3, Peng YANG3,4, Panpan SHEN1,2, Qingbin ZHU1,2 and Kai ZHANG5 |Show fewer author(s)
Author Affiliations
  • 1Shanghai Investigation, Design and Research Institute Co., Ltd., Shanghai 200335, China
  • 2Shanghai Engineering Research Center of Offshore Wind Energy Development and Utilization, Shanghai 200335, China
  • 3School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
  • 4Key Laboratory of Ship and Ocean Hydrodynamics of Hubei Province, Huazhong University of Science and Technology, Wuhan 430074, China
  • 5China Ship Scientific Research Center, Wuxi 214082, China
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    Objectives

    A new Spar-type floating wind turbine platform design scheme is proposed for a 15 MW floating wind turbine, and its performance is analyzed.

    Methods

    Based on potential flow theory, the frequency domain hydrodynamic calculation of the platform is carried out and the wave loads and motion response characteristics of the platform under different wave directions are analyzed. The blade element momentum method is applied to calculate the aerodynamic load of the impeller and make it equivalent to the wind coefficient in order to calculate the time-domain response of the platform under the combined effect of wind, waves and currents under different working conditions, while also analyzing the force situation of the mooring lines.

    Results

    The results show that the heave, roll, and pitch of the platform have peak points at the natural frequency of its motion, and the positions of occurrence are all far from the main energy region of the waves. Under the action of wind, waves and currents, compared to the working conditions, the maximum pitch angle of the platform under extreme conditions is smaller, but the amplitude of maximum surge, heave and mooring tension are greater than the working conditions.

    Conclusions

    The newly designed Spar-type floating wind turbine platform has good stability and hydrodynamic performance. Under the designed environmental loads, its response and mooring force can meet the requirements of the specifications, ensuring the safety and stability of the wind turbine.

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    Lin LIN, Mingyang CHEN, Peng YANG, Panpan SHEN, Qingbin ZHU, Kai ZHANG. Design and hydrodynamic performance of 15 MW Spar-type floating offshore wind turbine platform[J]. Chinese Journal of Ship Research, 2024, 19(4): 71

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    Paper Information

    Category: Technology and Equipment for Development and Utilization of Marine New Energy

    Received: Aug. 29, 2023

    Accepted: --

    Published Online: Mar. 14, 2025

    The Author Email:

    DOI:10.19693/j.issn.1673-3185.03533

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