A static and dynamic calibration method for wind turbine yaw deviation

Abstract

The invention discloses a wind turbine generator set yaw deviation static and dynamic calibration method. The method comprises a static calibration and a dynamic calibration, where the yaw deviation angle alpha of a wind turbine generator set is measured through static calibration; and the other kind is that through permanent installation measurement of the dynamic calibration, the real-time yaw deviation angle alpha1, the alpha2, the alpha 3 and the alpha n of the wind turbine generator set are measured, the yaw deviation angle alpha caused by the wake of the rotating blades of the wind turbine generator set is found, the yaw deviation angle value is calibrated and corrected, a yaw system is used for performing yaw action for facing the wind, the yaw position information is fed back to amain control unit, and the main control unit is used for judging whether the yaw system continues to perform the yaw action for facing the wind, so that a wind turbine generator set impeller can accurately face the wind, and the wind turbine generator set can normally and efficiently generate electricity.

Description

technical field [0001] The invention relates to the technical field of wind power generating set equipment, in particular to a static and dynamic calibration method for yaw deviation of a wind generating set. Background technique [0002] In order to ensure the efficient operation of wind turbines, large wind turbines use a yaw system. According to the wind direction data collected by the wind measurement system, the main control system judges it and issues instructions to keep the wind rotors of the wind turbines always in the windward state (when the wind force When the wind rotor of the generating set is facing the wind, the wind generating set obtains the maximum wind energy and generates the maximum electric energy). However, due to the rotation of the impeller of the wind turbine, an inevitable wake is generated, which will change the wind direction in front of the original wind turbine, making the real-time data collected by the wind measurement system deviate from th...

AI Technical Summary

Problems solved by technology

It prevents the wind rotor of the wind turbine from facing the wind, resulting in a decrease in the power generation efficiency of the wind turbine during the process of facing the wind

At the same time, if the wind turbine deviates from the wind direction for a long time, it will cause serious structural mechanical damage to the mechanical components such as the rotation and support of the wind turbine.

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