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研究了浮式平台的运动响应对风机气动性能影响.利用动量叶素理论及变速变桨比例积分微分(PID)控制技术,考虑了低于额定风速、额定风速、高于额定风速3种工况,对NREL 5MW水平轴风机随浮式平台运动的气动性能进行了模拟和分析.仿真结果表明:浮式平台的运动使风轮产生了与遭遇波浪同频的周期性载荷,同时浮式平台的运动响应幅值越大,低于额定风速时的平均功率越高,且额定风速时的平均功率越低,而高于额定风速时的平均功率基本不变.
The influence of the dynamic response of the floating platform on the aerodynamic performance of the wind turbine is studied. By using the momentum valence theory and the variable-pitch proportional-integral-derivative (PID) control technology, three operating modes, ie rated wind speed, rated wind speed and rated wind speed, , The aerodynamic performance of NREL 5MW horizontal axis fan with floating platform is simulated and analyzed.The simulation results show that the motion of floating platform causes the wind turbine to generate periodic load with the same frequency as the encountered wave and the floating platform The greater the amplitude of the motion response, the higher the average power below the rated wind speed and the lower the average power at the rated wind speed, whereas the average power above the rated wind speed remains substantially unchanged.