Distribution network model topology connectivity verification method

Abstract

The invention discloses a distribution network model topology connectivity verification method. The method comprises two aspects, the first including extracting a single line model through a distribution network feeder hierarchical relation, then clustering based on the connectivity of nodes, generating various connected clustering islands, and then determining the distance among the islands so as to preliminarily determine the connectivity of the single line model; and the second including extracting a single line model through a topological relation, then performing generalized dotted line graphic layout, generating a visualized distribution network topological graph, assisting in determining the model connectivity, or readjusting model extraction conditions, performing model re-extraction and re-layout, and conducting comparative analysis of the single line model connectivity. Based on the objective situation in the application of a distribution network model, the method is used for comparative analysis of the topological boundary and internal connectivity of the single feeder model from the two aspects of the hierarchical and topological relations, and provides calibration means for related applications based on the correctness of a topological model.

Description

technical field [0001] The invention belongs to the technical field of distribution automation systems, and in particular relates to a method for checking topology connectivity of a distribution network model. Background technique [0002] The distribution network model is a digital abstract description of the power system, which describes the ledger and topological connection relationship of real electrical equipment, and is the basic model data for power system calculation, analysis, and simulation. The topological connectivity quality of the distribution network model is the cornerstone of various business applications, so ensuring the correct topological relationship of the distribution network model is a key step in the construction and operation of the power system. [0003] In the field of distribution network, the single-feeder graph model (graph and model) is the basic unit for information exchange between different business systems. At present, system information ...

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Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a distribution network model topology connectivity inspection method, which achieves the goal of assisting grid automation maintenance personnel to check the quality of distribution network model connectivity, and solves the problem of relying on manual inspection of distribution network model topology connectivity. Low efficiency, error-prone, non-intuitive, difficult and other problems in certain situations, providing technical support for the practicability of distribution network automation operation and maintenance and power analysis business applications

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