Abstract
A trailing-edge flap control strategy for mitigating rotor power fluctuations of a 5 MW offshore floating wind turbine is developed under turbulent wind inflow. The wind shear must be considered because of the large rotor diameter. The trailing-edge flap control strategy is based on the turbulent wind speed, the blade azimuth angle, and the platform motions. The rotor power is predicted using the free vortex wake method, coupled with the control strategy. The effect of the trailing-edge flap control on the rotor power is determined by a comparison with the rotor power of a turbine without a trailing-edge flap control. The optimal values of the three control factors are obtained. The results show that the trailing-edge flap control strategy is effective for improving the stability of the output rotor power of the floating wind turbine under the turbulent wind condition.
Highlights
Wind power has been developing rapidly worldwide due to fossil fuel energy depletion and environmental pollution
A trailing-edge flap control strategy is integrated into the blade of the NREL 5 MW
A simple flap control method based on wind speed, blade azimuth angle, and platform motion is proposed to achieve method based on wind speed, blade azimuth angle, and platform motion is proposed to achieve effective flap control
Summary
Wind power has been developing rapidly worldwide due to fossil fuel energy depletion and environmental pollution. The floating platform swings periodically in a certain direction under the influence of the waves and currents This phenomenon produces a large negative effect on the fatigue loads of the relevant components of the wind turbine [5]. Research on load fluctuations and optimal control basic data forwind offshore wind energy[6]. Offshore floating wind turbine to mitigate the rotorthe power in the turbulent wind condition. Scale offshore floating wind turbine to mitigate rotorfluctuations power fluctuations in the turbulent wind. FVW model used tothe calculate the rotor of the windwith turbine proposed trailing-edge flap control.
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