Airborne LiDAR-based Wind Deflection Check for Power Transmission Lines

Wind deflection faults in transmission lines are an undeniable reality that can disrupt the normal operation of power systems. To address this issue and ensure the continuous and reliable functioning of transmission lines, this paper proposes an innovative approach: an airborne LiDAR-based wind deflection check method. By acknowledging the occurrence of wind deflection faults, we aim to develop a solution that effectively mitigates their impact and enhances the overall stability of power systems. The extraction and single-component segmentation of power lines are achieved by using a linear extraction algorithm based on principal components and an improved region growth segmentation algorithm for the filtered. The Euclidean clustering method is used to segment other components to obtain the point cloud data of each type of component monomer. The point cloud data are used to measure the basic attribute information and location information of the components. The experiments use UAVs with airborne LiDAR to select transmission lines in a certain region for data scanning and processing. The experimental results show that the method in this paper can realize fast and effective wind deflection checking of transmission lines, which can be done in a certain region for data scanning and processing. The experimental results show that the method in this paper can realize fast and effective wind deflection checking of transmission lines, which helps to realize reconstruction, localization, and early warning of transmission lines in 3D scenes.

I. Introduction

The wind deflection fault of power lines is a common fault that occurs frequently during the working operation of high-voltage transmission lines ^[1]-[2]. Because the power line is usually exposed to the natural outside world, the transmission line insulator string and wire in the strong wind, rain, hail, and other external factors and the common influence of the line’s own structure and parameters lead to an increase in the wind deflection angle of the transmission line wire, while the wire will have different degrees of displacement, which will lead to a reduction in the transmission line air gap, when the gap caused by the wind deflection angle is less than the transmission line wire work allowed value. When the gap caused by the wind deflection angle is less than the allowable value of the transmission line wire work, a breakdown discharge will occur, which will lead to a wind deflection flashover accident, resulting in a large area blackout and a great threat to the safety of power supply to the grid ^[3]-[5].