Research on image acquisition and contour extraction algorithm of partial discharge in oil
Author:
Li Longfei1, Han Xuefeng1, Liu Lei1, Zhang Fei1, Ge Zhijie1, Du Zhaoguang1, Wang Yifan2ORCID, Zhang Ziyue2, Liu Hongshun2ORCID
Affiliation:
1. Xinjiang Key Laboratory of Extreme Environment Operation and Testing Technology for Power Transmission & Transformation Equipment , State Grid XinJiang Company Limited Electric Power Research Institute , Urumqi 830011 , China 2. School of Electrical Engineering , Shandong University , Jinan 250061 , Shandong Province , China
Abstract
Abstract
Partial discharge in oil paper insulation is an important reason for insulation breakdown. The study of partial discharge in transformer oil is of great significance for ensuring the reliability of transformers. In this paper, a comprehensive observation platform of partial discharge with needle plate electrode and oil-paper insulation is built, and the original shape image set of partial discharge is collected and established. Through multi-channel convolution processing of the true color image, gray level equivalent distribution of 3D section, segmentation stretching of threshold interval and binary neighborhood search, a general technical method suitable for processing a series of low brightness discharge images with background interference is finally obtained.
Funder
The science and technology project of State Grid Xinjiang Electric Power Company
Publisher
Walter de Gruyter GmbH
Subject
Energy Engineering and Power Technology
Reference13 articles.
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