A Distributed Control and Identification Method for Distribution Network Topology

Abstract

The invention discloses a distributed control and identification method for a topology of a distribution network. Each terminal is only configured with topological information of an installation place and sends basic topological information in a broadcasting form, and each terminal judges whether the terminals are in adjacent or relative positions based on branch information and direction information. Through broadcasting, division of logic layers, generation of least junction trees and determination of proxy terminals are simultaneously completed. When switches and branches of the distribution network change, and equipment is cut off or merged, each terminal automatically updates the topological information and informs the adjacent terminal of the topological information in the broadcasting form, so that the number of manual configurations is reduced, and the automatic generation and the automatic update of the topological information are realized. Through adoption of a distributed structure, the defects of control of a large amount of information and huge communication data of a centralized control storage mode are avoided; and each terminal only needs to be configured with the topological information of the installation place, once the adjacent terminal changes, the topological information can be updated in real time.

Description

technical field [0001] The invention belongs to power system distribution network operation and control technology, in particular to a distributed control and identification method of distribution network topology. Background technique [0002] The management, control and identification of distribution network topology is the basis for realizing various functions such as distribution automation and fault self-healing. The distribution network has many branches and complex operation. During normal operation, the system scheduling needs to collect and detect the data of the whole network, receive and send a large amount of instruction information; when there is a fault, it needs to quickly and accurately diagnose and isolate the fault based on the topology. Therefore, it is of great significance to study distribution network topology control and identification methods to formulate system dispatching strategies and improve system stability and reliability. [0003] The current...

AI Technical Summary

Problems solved by technology

This type of method needs to configure the topology information of the terminal itself and adjacent terminals. Once the adjacent terminal switches or its branches and switch information change greatly, it needs to manually reconfigure the topology information, which is inefficient. This is different from the operation mode of the distribution network. Flexible and changeable, the characteristics of branches and equipment often change do not match

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