Insulator defect detection method and device for a power transmission line

Abstract

The invention provides a power transmission line insulator defect detection method and device, and the method comprises the steps: collecting a to-be-detected insulator image; determining a three-dimensional model of the to-be-detected insulator according to the to-be-detected insulator image; inputting the three-dimensional model of the to-be-detected insulator into an insulator deep neural network defect detection model generated by pre-training, performing defect detection on the to-be-detected insulator, and determining a defect type; wherein the insulator deep neural network defect detection model is generated by pre-training a plurality of insulator image samples. According to the technical scheme, the efficiency, accuracy and safety of insulator defect detection are improved, the cost of insulator defect detection is reduced, and the method can be widely applied to an electric power system.

Description

technical field [0001] The invention relates to the technical field of fault detection, in particular to an insulator defect detection method and device for transmission lines. Background technique [0002] The insulator of the transmission line is an important part used to fix the conductor to keep its electrical performance. In the operation of the power system, it works in a complex and harsh environment composed of strong electric field, mechanical stress, pollution, temperature and humidity for a long time. The probability of failure is very high, which seriously threatens the safe operation of the power system. According to statistics, the proportion of unexplained flashovers in domestic 110kV lines accounts for 22% of the failure rate, causing great economic losses. Generally speaking, insulator faults mainly include the following aspects: cracks inside the insulator, damage to the surface of the insulator, reduced insulation resistance, and pollution flashover. In ...

AI Technical Summary

Problems solved by technology

However, due to the direct contact of the electric quantity detection method with the measured object, it has buried a safety hazard for the occurrence of electric leakage and the electric shock accident of the operator. Therefore, the safety of the detection equipment and the operator must be considered to avoid unnecessary accidents.

[0030] For the above problems, no effective solutions have been proposed so far

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