基于机舱激光雷达的风力激增益预置前馈控制方法研究

Wind Excited Gain Preset Feedforward Control Method Based on Cabin Lidar

由于单增益变桨控制方法难以满足风力机组运行性能需求,提出基于机舱激光雷达的风力激增益预置前馈控制方法研究。引入机舱激光雷达技术测量风力机流经风速,基于雷达监测数据通过建立风速模型、获取前馈控制器参数、设计增益预置前馈控制器实现风力机变桨控制。仿真实验结果表明:所提方法控制风力机变桨时桨距角超调幅值为15°、调整时间为10 s、轮毂最大力矩为2 900 kNm,说明该方法具有良好的控制性能,可以有效降低风力机组所受载荷。

Because the single gain pitch control method is difficult to meet the operational performance requirements of wind turbine, a wind excited gain preset feedforward control method based on cabin laser radar is proposed. The cabin laser radar technology is introduced to measure the wind speed of the wind turbine. Based on the radar monitoring data, the wind speed model is established, the feedforward controller parameters are obtained, and the gain preset feedforward controller is designed to achieve the wind turbine pitch control. The simulation results show that the pitch angle overshoot value is 15°, the adjustment time is10 s, and the maximum moment of the hub is 2 900 kNm when the proposed method is used to control the wind turbine pitch, which shows that the method has good control performance and can effectively reduce the load on the wind turbine.