Study and implementation of a control algorithm for wind turbine yaw control system

In order to capture the maximum wind energy and improve the efficiency of wind generation system, the yaw control system is researched. This system takes the initiative to windward. According to the control algorithm proposed in this paper, yaw angle is calculated by the DSP, and the drive signals of stepping motor are generated. The stepping motor is controlled by the micro-stepping control to drive the yaw mechanical device to make the wind turbine windward. Through this way, the yaw control system can track the wind direction automatically. Experimental results show that based on the proposed control algorithm and DSP control, the performance of yaw system is great and the operation precision of stepping motor is high. Therefore, the yaw system has the ability to track the wind direction quickly and exactly.