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Intelligent recognition algorithm of connection relation of substation secondary wiring drawing based on d-lle algorithm

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dISCOVER APPLIEd SCIENCES 2024年第1期7卷 1-12页

作者： Liu, Hongzhi Yang, Bojie Kang, Fang Li, Qian Zhang, Hongyang State Grid Shandong Elect Power Co Econ & Technol Res Inst Jinan 250021 Shandong Peoples R China

The accurate recognition of the connection relationship of the substation secondary wiring drawings is a key link in the operation and maintenance of the power system, but the traditional manual recognition method has the problems of time-consuming, labor-intensive and error-prone. Therefore, this paper proposes an intelligent recognition algorithm for substation secondary wiring drawings based on d-lle algorithm. The composition of the substation secondary layout diagram is analyzed, and the connection relationship feature image is preprocessed, including smoothing and contrast enhancement, to improve the image quality. d-lle algorithm (denoised Locally Linear Embedding) is used to effectively extract the connection features in the drawings, which improves the feature expression ability and recognition accuracy. The improved Canny operator is used to extract the feature edge of the connection relationship, and the feature recognition algorithm is used to realize the intelligent recognition of the connection relationship. The experimental results show that the completeness of connection information extraction of substation secondary wiring drawings obtained by the proposed algorithm is between 98.56% and 99.98%, and the mean absolute error of intelligent recognition drawings connection relationship is always lower than 0.01. It shows that the proposed algorithm can accurately and quickly identify the connection relationship in the substation secondary wiring drawings, significantly improve the recognition efficiency, and has strong robustness and versatility, which can provide strong support for the intelligent operation and maintenance of the power system.

关键词： d-lle algorithm Substation Secondary wiring drawings Connection relation Intelligent recognition algorithm design

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