• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2021, Vol. 57 ›› Issue (6): 171-183.doi: 10.3901/JME.2021.06.171

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Dynamic Response of Floating Wind Farm Platform Based on Barge Platform under Common Sea Conditions

WANG Bo1, DING Qinwei1, LI Chun1,2, YUE Minnan1   

  1. 1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093;
    2. Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, Shanghai 200093
  • Received:2020-05-15 Revised:2020-10-26 Online:2021-03-20 Published:2021-05-25

Abstract: The stability of the floating wind turbine is the most fundamental guarantee for its normal work. In the deep sea, the complexity and variability of the environment load inevitably lead to the complex dynamic response of the floating wind turbine. Whole model of floating wind turbine is established based on the ITI Energy Barge platform and the NREL 5 MW wind turbine, and a floating wind farm based on Barge platform is proposed. The advanced programming language is employed to accomplish the solution of aerodynamic load, and the numerical simulation hydrodynamic software AQWA based on the radiation / diffraction theory and the finite element is used to simulate the dynamic response of floating wind farm platform under the effect of wind and wave. Frequency domain analysis results: The surge, heave and pitch responses of the floating wind turbine Barge platform are mainly concentrated on the low-frequency region. The surge and heave responses show the trend of decrease with the increase of wave frequency, while the pitch response shows the trend of first increase and then decrease. Time domain analysis results: The motion track of the floating wind farm platform is symmetrical with respect to the incident direction of the wind and wave. Compared with the Barge platform, the heave motion of the first row platform connected with the fixed catenary in the floating wind farm is slightly larger, but the differences can be neglected. In addition, the pitch and cabin stability of floating wind farm platform are improved, and its intensity of the fluctuation of the platform in roll and yaw is very small. It is shown that the floating wind farm platform proposed has good stability, which lays a foundation for further research.

Key words: barge platform, floating, wind farm, stability, dynamic response

CLC Number: