基于尾缘襟翼的风力机智能叶片控制设计

Control Design of Smart Rotor forWind Turbines Based on Trailing Edge Flap

大型风力机运行期间,叶片承受的载荷复杂多变且分布不均匀,传统的风力机变桨距控制难以及时响应快速变化的风载荷,且叶片整体转动无法实现局部控制.文章针对风力机变桨距控制的不足,设计了基于尾缘襟翼的智能叶片控制系统,并通过仿真分析智能叶片对风力机载荷的控制效果.仿真结果表明智能叶片可有效降低风力机叶根弯矩、俯仰力矩、偏航力矩的波动,从而有效减缓风力机的疲劳载荷.

The rotors of large wind turbines are always suffering complex and variable loads during operation.The traditional rotor pitch control is difficult to respond the rapidly changing load in time,and the whole rotor rotation can not realize local control.In order to make up the disadvantages of rotor pitch control on large wind turbines,a control system of smart rotor based on trailing edge flap is designed,and the control effect of smart rotor for wind turbine load is analyzed by simulation in this paper.The simulation results show that the smart rotor can effectively mitigate the unbalance loads of blade root bending moment,tilt moment and yaw moment,so as to effectively slow down the fatigue load of wind turbine.