Millimetre Wave Radar-based Wind Turbine Yaw Study

Yaw system is one of the key components of wind turbine, and the existence of certain error angle of yaw system will affect the generating capacity of wind turbine. The development trend of wind turbine is intelligent, large capacity, more stable and safe operation, the yaw control algorithm is constantly optimized, and the yaw system’s accuracy and flexibility to the wind is significantly improved.This paper proposes a millimeter wave radar-based yaw adjustment strategy for wind turbine yawing in view of the traditional yaw system’s large wind error, poor flexibility, lagging yaw response, and high number of ineffective yaws. Firstly, the composition of yaw system is introduced, secondly, the working principle of millimeter wave radar is analyzed, and finally, a yaw static error adjustment strategy based on millimeter wave radar is proposed.Finally, a yaw static error adjustment strategy based on millimeter wave radar is proposed to effectively reduce the yaw static error and the impact of yaw static error on the output power of wind turbine.