Xinjiang Goldwind Science & Technology has been granted a patent for methods, apparatuses, and systems for accurately determining and correcting installation errors of wind vanes. The technology involves obtaining images of wind turbine blades and the outer rotor of the generator, calculating the center line of the wind turbine, and determining if the wind vane is aligned with the center line. If not aligned, a deviation angle is calculated and the wind vane’s direction is corrected accordingly, improving installation accuracy. GlobalData’s report on Xinjiang Goldwind Science & Technology gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Xinjiang Goldwind Science & Technology, ram air turbine was a key innovation area identified from patents. Xinjiang Goldwind Science & Technology's grant share as of June 2023 was 1%. Grant share is based on the ratio of number of grants to total number of patents.
Method for correcting wind vane installation errors
A recently granted patent (Publication Number: US11686288B2) describes a method and apparatus for correcting an installation error of a wind vane in a wind turbine. The method involves obtaining an image of the wind turbine blades and the outer rotor of the generator. From this image, the contour of the blades and the outer rotor is obtained. A center line of the wind turbine is then calculated based on the contour of the outer rotor and two blades. An intersection point between the center line and the outer rotor contour is determined as a reference point.
The method further involves obtaining the orienting plane of the wind vane and determining whether it is aligned with the center line of the wind turbine. If the wind vane is not aligned, a deviation angle between the wind vane and the center line is calculated based on the orienting plane and the reference point. The direction of the wind vane is then corrected according to the deviation angle.
The apparatus for implementing this method includes an image obtaining module, a contour obtaining module, a center line calculation module, an alignment determination module, and an angle correction module. The image obtaining module acquires an image of the wind turbine blades and the outer rotor. The contour obtaining module extracts the contour of the blades and the outer rotor from the image. The center line calculation module calculates the center line of the wind turbine based on the obtained contours. The alignment determination module determines whether the wind vane is aligned with the center line. The angle correction module calculates the deviation angle and corrects the direction of the wind vane accordingly.
The system for correcting the installation error of the wind vane includes an image collecting apparatus and a processor. The image collecting apparatus is detachably disposed at the head of the wind vane and acquires the image of the blades and the outer rotor. The processor obtains the image, calculates the center line, determines the alignment, calculates the deviation angle, and corrects the direction of the wind vane.
Overall, this patent presents a method and apparatus for accurately aligning the wind vane of a wind turbine, which can help optimize the performance and efficiency of the turbine.
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