Research on image acquisition and contour extraction algorithm of partial discharge in oil
| Autor: | Longfei Li, Xuefeng Han, Lei Liu, Fei Zhang, Zhijie Ge, Zhaoguang Du, Yifan Wang, Ziyue Zhang, Hongshun Liu |
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| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | International Journal of Emerging Electric Power Systems. |
| ISSN: | 1553-779X 2194-5756 |
| DOI: | 10.1515/ijeeps-2022-0377 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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