关于优化风机偏航控制系统的探究

Research on Optimizing Wind Turbine Yaw Control System

偏航控制系统是风力机组实现快速精准有效对风,避免风能损失的关键系统,偏航误差导致了发电量的持续损失。激光雷达测风装置在测量偏航误差方面应用效果显著。偏航误差越大,风电机组功率曲线离散性越大。偏航误差在3°以内,对发电量的影响很小,不需要进行静态调整,3°以上的风机需进行调整。激光雷达通过检测风轮前方的风速情况,给风机主控系统预留出了足够多的时间,提前响应,优化功率输出实现整个风电场功率最大化。

Yaw control system is the key system for wind turbine to realize fast,accurate and effective wind control and avoid wind energy loss.Yaw error leads to continuous loss of power generation.The application effect of lidar wind measuring device in measuring yaw error is remarkable.The greater the yaw error,the greater the discreteness of wind turbine power curve.The yaw error is within 3 degrees,which has little impact on the power generation,so there is no need for static adjustment,and the fans above 3 degrees need to be adjusted.By detecting the wind speed in front of the wind turbine,the lidar has reserved enough time for the main control system of the wind turbine to respond in advance,optimize the power output and maximize the power of the whole wind farm.