Deteriorated insulator detection system and method based on drone

Abstract

The invention discloses a deteriorated insulator detection system and method based on a drone and relates to the field of repairing and maintenance of power transmission circuits. The system comprisesa guidance cover, a connection rod, a drone, a detector, a wireless transmission module and an electric field analysis module. The connection rod is fixed on the guidance cover. The drone is fixed onthe connection rod and used for driving the guidance cover to up-down moving along an insulator string. The detector is fixed on the guidance cover and comprises an electric field sensor and a photoelectric sensor. The electric field sensor is used for measuring axial electric field intensity of the insulator string. The photoelectric sensor is used for positioning and acquiring position information of the deteriorated insulator detection system. The wireless transmission module comprises a measurement end wireless transceiving unit and a ground end wireless transceiving unit. The electric field analysis module is connected with the ground end wireless transceiving unit, establishes an electric field distribution curve of the insulator string according to the axial electric field intensity and the position information and analyzes whether there is deteriorated insulator according to the electric field distribution curve. According to the invention, detection safety and maintenance efficiency can be improved.

Description

technical field [0001] The invention relates to the field of inspection and maintenance of power transmission lines, in particular to a degraded insulator detection system and method based on an unmanned aerial vehicle. Background technique [0002] The insulator is in the shape of a sheet, and the insulator string composed of multiple insulators plays an insulating and supporting role in the transmission line. Because insulators are exposed to electromechanical loads, sun and rain, and changes in cold and heat for a long time, there is a natural deterioration phenomenon. When the deterioration reaches a certain level, its insulation and mechanical properties will decline, and may even cause line flashover, insulation cracking or even Faults such as breakdown pose a potential threat to the safe operation of the power system. Therefore, the detection of degraded insulators on transmission lines is an important means to ensure the safe and stable operation of transmission lin...

AI Technical Summary

Problems solved by technology

However, most of the detection devices designed by these methods are manually operated, which is not only affected by the subjective factors of operators, it is almost impossible to complete the detection of insulators on ultra-high voltage transmission lines, and the degree of difficulty and risk are relatively large.

[0004] The existing commonly used detection method for degraded insulators is distributed voltage detection, which cannot measure composite insulators, and needs to touch the steel caps on both sides of the insulator piece by piece, which is cumbersome to operate

At the same time, the electric field measurement method is currently used to detect the deterioration of insulators, mainly in the form of manual tower climbing detection, which has large detection errors, inconvenient operation, and high risk.

Moreover, it is necessary to manually record the detection data during the detection and then analyze it after the detection is completed. Since the data is manually recorded, the detection is time-consuming and inevitably makes mistakes.

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