Research on Real-time Automatic Acquisition Technology of Topology Data in Distribution Network

Abstract

The current distribution network equipment renovation plan arrangement is mainly based on the equipment health level, operating years and other indicators. Coordination and optimization between renovation projects are still lacking. Scattered and disorderly transformation will cause potential safety hazards in the distribution network operation. The paper proposes to establish a unified real-time data collection platform for distribution network based on real-time/historical database, and gives the construction idea and implementation plan of the platform. The designed platform has data interfaces with mainstream production control systems, user meters and electrical related systems, and integrates a wealth of common software tools, which can manage and analyze the real-time/quasi-real-time data of the distribution network in a unified manner and can facilitate Coordinated with the implementation of advanced applications of smart distribution networks, it has laid the foundation for the analysis and control of the optimized operation of the entire grid/local area grid and the construction of an integrated model of smart grid operation and distribution. At the same time, the paper proposes a method for checking the topology of low-voltage distribution networks based on outlier detection, calculates the correlation coefficient between the voltage sequence data to measure the similarity of the voltage curves of different users, and finally verifies the users and stations in the grid GIS system The correctness of the zone transformer topology connection relationship.