A trailing-edge flap control strategy for mitigating rotor power fluctuations of a 5 MW\noffshore floating wind turbine is developed under turbulent wind inflow. The wind shear must be\nconsidered because of the large rotor diameter. The trailing-edge flap control strategy is based on\nthe turbulent wind speed, the blade azimuth angle, and the platform motions. The rotor power is\npredicted using the free vortex wake method, coupled with the control strategy. The effect of the\ntrailing-edge flap control on the rotor power is determined by a comparison with the rotor power\nof a turbine without a trailing-edge flap control. The optimal values of the three control factors are\nobtained. The results show that the trailing-edge flap control strategy is effective for improving the\nstability of the output rotor power of the floating wind turbine under the turbulent wind condition
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