基于FAST的大型风电机组叶根载荷反馈独立变桨距控制策略

Blade Root Load Feedback Individual Pitch Control Strategy for Large-scale Wind Turbines Based on FAST

针对湍流、风剪切效应、塔影效应等因素对风电机组风轮叶片、塔架等部件产生不平衡载荷,引起风机零部件振动加剧、疲劳损伤等问题,利用美国可再生能源实验室(NREL)开发的FAST软件,搭建5 MW陆基风机模型,研究基于叶根载荷反馈的独立变桨距控制策略,通过FAST和MATLAB/Simulink的联合仿真分析,表明该控制策略可以有效降低风电机组的不平衡载荷。

In order to solve the problems of unbalance loads on wind turbine blades、tower and other components, resulting in increased vibration, fatigue damage and other problems of wind turbine components,caused by turbulence, wind shear effect and tower shadow effect, the FAST software developed by NREL was used to build a 5MW land-based wind turbine model. The individual pitch control strategy based on blade root load feedback is studied. The co-simulation analysis of FAST and MATLAB/Simulink shows that the control strategy can effectively reduce the unbalanced load of wind turbine.