Study to motion response of floating offshore wind turbine under the turbulent wind

In order to analyze the influence of turbulent wind loads acting on the floating offshore wind turbine (FOWT), environmental loads and motion response were studied under the turbulent wind. Firstly, turbulent wind farm over the sea was predicted by use of the harmony superposition method, then wind loads were calculated by blade element method(BEM) and PID control, modified Morison formula was employed by wave loads, The motion equations were set up under combined wind and wave, the environmental loads and motion simulations were implemented. The numerical results show that the turbulent wind loads have a great influence on motion response of FOWT. So turbulent wind loads must be considered on the analysis of motion response of FOWT.