A wind turbine anti-sweeping tower system based on blade state

By installing strain gauges and gyroscopes on the blades to detect blade curvature and angle, and combining this with an integrated actuator to adjust the blade tip direction, the problem of blade sweeping against the tower was solved, achieving a balance between the safety and power generation of the wind turbine generator.

CN224432711UActive Publication Date: 2026-06-30大唐黑龙江新能源开发有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
大唐黑龙江新能源开发有限公司
Filing Date
2025-09-16
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

As wind turbine power increases and blade length increases, blade-to-tower sweep accidents become more frequent, leading to wind turbine tower collapses. Existing technologies are insufficient to effectively prevent the risk of blade-to-tower sweep and maintain power generation.

Method used

By installing strain gauges and gyroscopes on the blade body and blade tip to detect curvature and angle, and combining them with an integrated actuator and control system, the direction of the blade tip is adjusted in real time to make it perpendicular to the tower, avoid collisions, and stop the machine when necessary.

Benefits of technology

It effectively reduces the risk of blade tip swiping on the tower, maintains power generation, prevents blades from colliding with the tower, and improves the safety and operating efficiency of wind turbine generators.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a wind turbine anti-sweeping tower system based on blade condition, relating to the field of wind power generation. It includes a blade body, with strain gauges symmetrically installed on the inner sides of the front and rear sills for detecting the blade body's curvature. A gyroscope is installed on the inner side of the blade tip for detecting the tip's curvature angle. In strong wind environments, the blade body and tip can rotate in the wind direction. By using strain gauges to detect the blade body's curvature and the gyroscope to detect the tip's curvature angle, the clearance distance between the blade and the tower can be detected in a timely manner. Furthermore, when the blade tip bends at a certain angle, it can rotate in the wind direction. In strong wind environments, this not only reduces the risk of blade tip sweeping but also maintains a certain level of power generation.
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