基于激光雷达的风力机偏航误差纠正策略研究

本文在分析了现有测风系统不足的基础上,通过风洞实验验证了不同入射角来流风速对风速仪测风的影响,证明了现有风速测量的不准确性。在此基础上提出了激光雷达风轮前方测风系统,根据电量损失的百分比和偏航误差的余弦平方关系曲线,通过在风电场安装激光雷达,收集激光雷达和现有测风系统(机舱后方气象架和测风塔)的风况数据,对数据进行相关性及拟合分析,得出现有测风系统所测量风向的偏差值。通过在人机界面(HMI)中修正此偏差值可以减少功率损失。

Wind Turbine Yaw Error Correction Strategy Based on Lidar

Based on the analysis of the existing insufficiency of wind measurement system, wind tunnel experiments are used to verify the influence of wind velocity at different incident angles on wind measurement by anemometer, and the inaccuracy of current wind speed measurement is proved. Based on this, a wind measurement system in front of the laser radar winder was proposed. Based on the percentage of power loss and the square of the cosine of the yaw error, the laser radar was installed on the wind farm to collect the laser radar and the existing wind measurement system (the rear of the engine room The weather data of the meteorological frame and the wind measuring tower were correlated and fitted to the data, and the deviation of the measured wind direction from the existing wind measurement system was obtained. Power loss can be reduced by correcting this offset in the Human Machine Interface (HMI)