Method and device for determining a clearance value of a wind turbine

By shooting videos of wind turbine generators and combining them with rotational speed information to calculate the clearance value, the problem of large clearance value calibration error was solved, achieving higher calculation accuracy and stability.

CN117846891BActive Publication Date: 2026-07-24BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
Filing Date
2022-09-30
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing technology has a large calibration error in the airspace value of wind turbine generator sets, resulting in inaccurate airspace values. This is mainly due to the differences and errors in the operation of on-site personnel, which lead to inaccurate calibration results.

Method used

By capturing video of the wind turbine generator set using a camera, the pixel distance between the blade tip and the tower is determined. Combined with the wind turbine generator set's rotational speed and blade tip trajectory information, the physical distance corresponding to each pixel is calculated, and the clearance value is finally determined, avoiding human error and simplifying the operation process.

Benefits of technology

It improves the accuracy of airspace values, reduces human error caused by maintenance personnel, and enhances calculation precision and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided are a method and device for determining a clearance value of a wind turbine. The method for determining the clearance value of the wind turbine comprises: determining a pixel distance between a blade tip and a tower of the wind turbine when the blade tip passes the tower based on a video of the wind turbine captured by a camera; determining a physical distance corresponding to a unit pixel based on a rotational speed of the wind turbine and a number of pixels included in a track of the blade tip in the video within a preset time length; and determining the clearance value of the wind turbine based on the physical distance corresponding to the unit pixel and the pixel distance between the blade tip and the tower, thereby improving the accuracy of the clearance value.
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