Real-time updating method and system of intelligent distribution network section, storage medium, and terminal

Abstract

The invention provides a real-time updating method and system of intelligent distribution network section, a storage medium, and a terminal. The method includes the steps of taking basic topological information and switch state information provided by a distribution network automation system as a basis, importing installation position information of synchronous phasor measurement units, and generating a distribution network global topological matrix considering the influence of switches; through the generated distribution network global topological matrix, determining path information betweeneach phasor measurement unit, identifying a multi-terminal section by constructing an adjacent sub-array method, and forming a multi-terminal section configuration matrix with the synchronous phasor measurement units as nodes. In the way, the invention lays a foundation for correct identification of a fault diagnosis module.

Description

technical field [0001] The present disclosure relates to a method, a system, a storage medium and a terminal for real-time updating of an intelligent distribution network section. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art. [0003] With the massive access of Distributed Generation (DG), the energy flow of the distribution network has the characteristics of randomness and time-varying. Due to the limitation of power electronic devices, the short-circuit current capacity of DG is small. Traditional measurement devices such as FTU, fault The collection and extraction of fault feature quantities such as indicators can no longer meet the requirements of fault diagnosis of distribution network with DG, and the traditional fault diagnosis scheme brings great challenges. [0004] High-precision synchrophasor measurement units (Phasor Measurement Uni...

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Problems solved by technology

The centralized section identification method mainly relies on the staff to manually input the configuration of each section according to the topology analysis of the distribution network automation system, but it cannot guarantee that the section configuration will change when the network topology is affected by power production, load demand, and faults Case

The distributed section identification method will disperse the topology information of the entire distribution network to many distributed intelligent distribution terminals. Each distribution terminal only stores and manages the local topology information corresponding to the installation location and adjacent distribution terminals. There is a large delay in uploading information to the master station, which cannot guarantee the real-time requirements of the fault diagnosis module of the master station for section information

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