Topology Identification Method of Low-voltage Distribution Network Based on GIS and Voltage Waveform Correlation Analysis
Aiming at the problems of high cost and low efficiency of manual calibration of low-voltage distribution network topology , a topology identification method of low-voltage distribution network based on GIS and voltage waveform correlation analysis is proposed. Firstly , according to the geograph...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2023-10-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=2256 |
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| Summary: | Aiming at the problems of high cost and low efficiency of manual calibration of low-voltage distribution network topology , a topology identification method of low-voltage distribution network based on GIS and voltage waveform correlation analysis is proposed. Firstly , according to the geographic information of the distribution and user in the GIS platform , combined with the spatial constraints of the household variable relationship , the overlapping areas and non-overlapping areas are screened out , and the household variable relationship of the non-overlapping areas is preliminarily determined. Secondly , the voltage sequence correlation between the user in the overlapping area and the distribution in the adjacent station area is analyzed , and the three indicators of Euclidean distance , DDTW and Pearson correlation coefficient are used to evaluate the household change relationship in the overlapping area. Finally , the voltage correlation trend of the overlapping area is continuously monitored dynamically , and when the voltage correlation between the user and the station area changes drastically , the voltage correlation of the user and the adjacent station area is recalculated , the station area to which the user belongs is determined , and the alarm information is pushed to the operation and maintenance personnel for manual verification and confirmation. A numerical example shows the effectiveness and feasibility of the proposed method. |
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| ISSN: | 1007-2683 |