Wind turbine yaw-to-wind self-correction method and device

Abstract

The invention provides a self-correcting method and equipment for yaw to wind of wind turbines. The self-correcting method for the yaw to the wind includes the following steps: obtaining operation data of the wind turbines; converting the operation data into the operation data with a data point time interval as a system response time; dividing the converted operation data according to different sectors; searching a maximum power value of each of wind speed segments in the operation data in the sectors, and determining a deviation value of the yaw to the wind corresponding to each of the wind speed segments according to the maximum power value of each of the wind speed segments; and performing correction of the yaw to the wind according to deviation value of the yaw to the wind corresponding to each of the wind speed segments of each of the sectors. According to the method and the equipment, calculation and correction of deviation to the wind can be accurately, simply and efficiently performed on the wind turbines on line, and the precision to the wind of the wind turbines can be maintained for a long time.

Description

technical field [0001] The invention relates to the field of yaw control of wind turbines. More specifically, it relates to a yaw-to-wind self-correction method and device for a wind turbine. Background technique [0002] Affected by the difficulty of high-altitude operations, it is difficult to achieve accurate calibration between the initial orientation of the large wind turbine nacelle and the initial orientation of the wind vane. At present, when installing units in wind farms, commissioning personnel generally use visual inspection to calibrate the initial position of the wind vane based on experience, which leads to random deviations between the initial orientation of the wind turbine nacelle and the initial orientation of the wind vane. In addition, long-term operation of measuring equipment such as wind direction will produce zero point drift, which will also affect the measurement accuracy of yaw versus wind angle. At the same time, during the operation of the win...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a wind turbine yaw-to-wind self-correction method and equipment to solve the problem that the accuracy of the existing yaw-to-wind correction method is not high

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