| Citation: | LI Hao, GUAN Ti, WANG Shan, et al. Topological relation detection technology of substation wiring diagram in electric power system[J]. Journal of Beijing University of Aeronautics and Astronautics, 2021, 47(3): 531-538. doi: 10.13700/j.bh.1001-5965.2020.0476(in Chinese)
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Topological relation of electrical components is the core-data required by substation wiring diagram automatic generation technology. At present, known technologies still rely much on artificial access to topological relations. By the combination of deep learning based object detection technology and traditional computer image processing technology, topological relation can be detected automatically. Firstly, to segment the electrical components and connection lines, deep learning based object detection technology was used to identify the electrical components, and the image processing technology was used to preprocess the scalar-format wiring diagram of power plants. Secondly, a contour tracking algorithm was adopted to detect and mark the connected area of the connection lines. Finally, the topological relation of the drawing was acquired according to the obtained information of electrical components and connection lines. Comparative experiments based on a dataset released by the State Grid Corporation of China indicate the effectiveness of the proposed method.
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