兆瓦级风力发电机组偏航反时限优化控制

摘要

为解决兆瓦级风力发电机组不能频繁偏航和及时响应的矛盾，采用体现能量特征的反时限方法获得相对风向阈值及延时时间。考虑输入信号的稳定性，使用均值对风速和风向进行处理。在流程上对相邻两次动作进行时间限制，提高设备使用寿命。在PLC控制器上构建了仿真环境，实测结果验证了该算法的可行性及可靠性，为偏航系统优化运行提供可行指导。%In order to resolve the contradiction between infrequent yaw and timely response for MW wind turbines, the inverse time method reflecting energy features is used to obtained relative wind direction threshold and time delayed. To ensure the stability of the input signal, the average of wind speed and wind direction is used. Service life of the equipment is improved by limiting the time period of two adjacent actions of the yaw. The simulation environment is built in PLC controller, the result of real tests verify the feasibility and reliability of this method; it offers feasible guidance to optimal operation of the yaw system.