Automatic checking method and device for power distribution network topology based on graph database

Abstract

The invention relates to the technical field of power distribution network topology, and discloses a power distribution network topology automatic checking method and device based on a graph database, and the method comprises the steps: firstly obtaining power distribution network topology information stored in the graph database, carrying out the depth-first traversal of the whole power distribution network topology from a first vertex of a power distribution network topological graph, and carrying out the depth-first traversal of the whole power distribution network topology; the method comprises the following steps of: checking whether a switching value exists in equipment connected with a vertex, then judging whether the switching value is closed or not, and performing corresponding merging and deleting operations on nodes at two ends according to switch closing information to finish first-step topology simplification work; then, a hierarchical clustering algorithm is adopted to partition a power supply area, node actual measurement data belonging to the same partition are classified into one group, and each group is regarded as different power supply areas; and finally, detecting the correlation of voltage curves among different nodes in the power supply area by adopting a discrete Freyming distance so as to detect whether the nodes are in the correct power supply area or not, thereby achieving the purpose of checking the topology of the power distribution network.

Description

technical field [0001] The present application relates to the technical field of distribution network topology, and in particular, to a method and device for automatic verification of distribution network topology based on a graph database. Background technique [0002] With the development of the distribution network and its wide application in the power Internet of Things, the distribution network needs to perform tasks such as information sharing and equipment monitoring in addition to basic distribution tasks. The correctness of the distribution network topology is the basic premise to realize these functions, so it is extremely important to check the distribution network topology. At the same time, the number of distribution network line planning continues to increase, and the investment in distributed power supplies and other equipment increases, resulting in increasingly complex distribution network structures. In this regard, it is increasingly important to check the...

AI Technical Summary

Problems solved by technology

[0004] This application discloses a method and device for automatic verification of distribution network topology based on a graph database, which is used to solve the current problem of verifying the consistency between nodes and power supply areas when performing distribution network topology verification. The relationship with the node is mainly through the manual use of special equipment for on-site identification, but the manual method needs to arrange staff to on-site identification, which is a technical problem with low identification efficiency

Images