Power distribution network feeder line fault positioning method and device, terminal equipment and storage medium

Abstract

The invention relates to the technical field of power distribution networks, and discloses a power distribution network feeder line fault positioning method and device, terminal equipment and a storage medium, and the method comprises the steps: building a tree topology structure of a power distribution network feeder line region according to preset information collection nodes when it is judged that the power distribution network feeder line region has a fault; obtaining node current information of each node in the tree-shaped topological structure, and traversing the tree-shaped topological structure to obtain node current information of head nodes and tail nodes of all Y-shaped branches; wherein each Y-shaped branch comprises a head node, two branches and two tail nodes; judging the Y-shaped branch of which the fault current flows through the head node and the fault current does not flow through the two tail nodes as a fault Y-shaped branch; and searching nodes in the fault Y-shaped branch and determining the position of a fault point. According to the method, overlarge memory space caused by a complex network topology structure can be avoided, meanwhile, the judgment process is simplified, and the position of a fault point can be quickly searched.

Description

technical field [0001] The present invention relates to the technical field of distribution network, and in particular, to a method, device, terminal equipment and storage medium for locating a fault of a distribution network feeder. Background technique [0002] The important goal of distribution network construction is to improve the reliability of power supply, and feeder automation is an important technical means to improve the reliability of power supply of distribution network. When the line fails, the power distribution terminal should be able to automatically identify the fault, automatically isolate the fault area, and complete the power supply recovery in the distribution network feeder area. [0003] At present, the common methods for locating feeder faults include matrix algorithm. The matrix algorithm is to represent the network topology and fault overcurrent information provided by FTU (Feeder Terminal Unit, feeder terminal unit) in matrix form, and then correc...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a distribution network feeder fault location method, device, terminal equipment and storage medium to solve the technical problem in the prior art that the storage capacity is too large due to the complex network topology structure, which can not only simplify the judgment process, but also quickly Efficient search to locate fault points

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