The working principle of the wind yaw system is to sense changes in wind direction through a wind vane, and convert it into electrical signals that are transmitted to the yaw motor. The yaw motor drives the engine room to rotate around the centerline of the tower according to the direction of the electrical signals, keeping the wind turbine always in a windward state, thereby improving the efficiency of wind energy utilization.
When the wind direction changes, the wind vane will drive the rotor of the yaw motor to rotate, causing current to be generated in the stator winding of the yaw motor, thereby generating torque and driving the engine room to rotate. At the same time, the yaw system is equipped with a series of sensors and controllers to monitor the position, speed, acceleration and other parameters of the cabin, and adjust the speed and direction of the yaw motor based on these parameters to achieve precise yaw control.
In addition, in order to improve the reliability and stability of the yaw system, a series of protection measures are adopted, such as overspeed protection, overcurrent protection, overvoltage protection, etc., to ensure the safe operation of the yaw system.