Tower displacement monitoring method based on image recognition

Abstract

The invention discloses a wind turbine generator tower displacement monitoring method based on an image recognition algorithm. The method comprises the steps of: carrying out the video / photograph imaging of a unit in operation through simple imaging equipment, recognizing the boundary of a tower in imaging based on an image recognition algorithm, and calculating the displacement amplitude of the whole tower at any height. According to the invention, quick diagnosis of the displacement overrun of the tower of the operating unit can be achieved with low cost and in a simple and feasible implementation means, and the potential safety hazards of operation can be discovered in time.

Description

technical field [0001] The invention relates to the field of wind power, in particular to a method for monitoring the displacement of a wind turbine tower. Background technique [0002] After my country's wind power has experienced rapid growth, wind farm construction resources in high wind speed areas such as the "Three Norths" have become increasingly scarce. Wind power developers have gradually turned to areas with lower wind speeds such as the central, eastern, and southern regions of my country. In order to capture more wind energy, tall towers Units and flexible tower units have been installed and used in large quantities, and monitoring the displacement of the tower is an important measure to ensure the safe operation of such units. [0003] At present, the tower displacement monitoring methods commonly used in my country include laser ranging, infrared imaging, and multi-point displacement measurement. These monitoring methods rely on high-cost data acquisition and m...

AI Technical Summary

Problems solved by technology

These monitoring methods rely on high-cost data acquisition and monitoring equipment, and require long-term monitoring, and the equipment installation process also requires professional and technical personnel to operate

If the displacement of multiple locations needs to be monitored, multiple monitoring devices need to be installed at the same time, which further increases the monitoring cost and engineering implementation difficulty

In addition, the methods currently used are mostly single-dimensional monitoring, that is, the displacement monitoring of the tower is determined by the displacement in one direction.

Therefore, the tower displacement monitoring method commonly used in my country at present cannot quickly respond to the tower displacement monitoring needs of the operation site, and thus cannot timely and effectively eliminate the hidden dangers of on-site operation safety.

[0004] In addition, at present, many wind turbines in my country have adopted flexible tower technology, and the deformation of the tower is flexible and non-rigid. Therefore, the displacement amplitude of the tower calculated from a single direction cannot represent the real deformation of the tower.

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