Air gap three-dimensional spark discharge channel detection method based on equal division principle

Abstract

The invention relates to an air gap three-dimensional spark discharge channel detection method based on an equal division principle, which belongs to the technical field of gas discharge of an electric power system, and comprises the following steps: 1, setting an air gap distance, and reading pixel data of images of a picture A and a picture B shot in an orthogonal direction; 2, identifying discharge paths of the graph A and the graph B; step 3, acquiring an air gap two-dimensional electric path image and acquiring an air gap three-dimensional spark discharge path image based on an equal division principle; 4, calculating air gap spark discharge path parameters. According to the invention, the air gap discharge images shot in the orthogonal direction are processed and synthesized, so that parameters such as the two-dimensional discharge path length, the three-dimensional discharge path length, the air gap discharge initial direction angle and the discharge path fractal dimension of the discharge path are calculated, the data size of the processed images is reduced, and the calculation efficiency is improved.

Description

technical field [0001] The invention relates to a method for detecting a three-dimensional spark discharge channel in an air gap based on the equalization principle, and belongs to the technical field of gas discharge in electric power systems. Background technique [0002] The study of air gap discharge characteristics is closely related to the external insulation and lightning protection of power systems, and has always been a hot issue in power system research. The air gap discharge process is complex and changeable, and its discharge path has characteristics such as bending and bifurcation. Since the air gap has nonlinear discharge characteristics, it is difficult to simulate the entire discharge process by computer simulation. At present, more accurate air gap discharge characteristics are mainly obtained through discharge tests. Due to the dispersion of air gap discharge, each discharge path is different. At present, the characteristics of the discharge path are mai...

AI Technical Summary

Problems solved by technology

At present, most of the 3D synthesis algorithms for air gap discharge paths are not accurate enough

There is often some background noise in the discharge image, which increases the difficulty of image processing, and the different distances between the cameras in the orthogonal direction and the different image pixels also increase the difficulty of 3D discharge channel synthesis.

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