Short-term prediction of hydrodynamic response of a novel semi-submersible FOWT platform under wind, current and wave loads.

In the present study, the hydrodynamic response of the novel semi-submersible floating wind turbine (FOWT) platform "Three Gorges Leading (TGL)" was investigated under the actions of wind, current, and wave load and mooring recovery force. AQWA based on potential flow theory was used to establish the hydrodynamic model of the platform and calculate the hydrodynamic coefficients and frequency domain hydrodynamic response. Premised on the hydrodynamic model, the influence of environmental parameters on the hydrodynamic response of the platform was specifically analyzed, the Kriging-MOGA algorithm was used to establish an approximate prediction model for the frequency domain hydrodynamic response of the platform, and the time domain response of the platform under the predicted hazardous conditions was analyzed using FAST-AQWA (F2A) under the action of aerodynamic-hydrodynamic coupling. Findings were made that the hydrodynamic response of the platform was significantly affected by the aerodynamic load of the blades, and the novel semi-submersible platform was verified to meet the operating requirements of offshore floating wind turbines. • Hydrodynamic response of a novel semi-submersible FOWT platform is studied. • Carry out the sensitivity and correlation analysis of the influence of each environmental parameter. • The Kriging-MOGA prediction model for the frequency domain response of the platform is used for short-term prediction. • F2A is used to calculate the time domain response of the platform under the action of aero-hydrodynamic coupling. [ABSTRACT FROM AUTHOR]