Xu Pu, Chen Yingqi, Song Qiming, et al. DYNAMIC RESPONSE ANALYSIS OF “WIND TURBINE-PHOTOVOLTAIC-NET CAGE” FLOATING INTEGRATED PLATFORM UNDER COMBINED ACTIONS OF WINDS, WAVES AND CURRENTS[J]. 2025, 46(3): 626-634.
In order to efficiently utilize marine resources and promote the development of multi-energy integrated floating platform
a "wind turbine-photovoltaic-net cage" floating integrated platform is proposed to adapt the deep-sea application. Based on the coupled calculation method of FAST and AQWA
the integral numerical model of wind turbine
photovoltaic (PV) and net cage platform
mooring system was established. The influence of the PV module on the hydrodynamic performance of the integrated platform was investigated by comparing the frequency domain of "PV-net cage" integrated model and single net cage model. Considering the combined actions of winds
waves and currents
the dynamic responses of the "wind turbine-photovoltaic-net cage" floating integrated platform was further calculated. The results show that PV module causes the increase of the additional mass and the peak radiation damping of the integrated model
and has little effect on the first-order wave force but leads to the augment of the RAO in the direction of the heave and the pitch. Under combined actions of winds
waves and currents
the rotor thrust
blade tip flapping deviation
base shear force and tower top deviation of the wind turbine produce large fluctuations. The responses amplitudes of the PV and the net cage platform in the surge and pitch direction significantly increase
but slightly influences on the heave direction. Meanwhile
the axial tension of the windward platform cables remarkably amplifies
and the axial tension of the leeward platform cables reduces. Compared with the single cage platform
the addition of wind turbine and photovoltaic module will also increase the upwind cable tension and decrease the leeward cable tension of the floating integrated platform.
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