Automatic generation method of distribution network single-line graph of hybrid-type layout

Abstract

The invention discloses an automatic generation method of a distribution network single-line graph of a hybrid-type layout. The method includes: step 1, importing electrical models of a distribution network; step 2, abstracting the electrical models of the distribution network as an undirected graph of "node-edge", wherein management equipment is abstracted as nodes, primary management subordinateto all the management equipment is used an internal layout elements of the nodes, external electrical connections of the primary equipment inside all the nodes are converted into connection points ofthe nodes, and for primary equipment not contained in the management equipment, single-end equipment or equipment connected with the management equipment is used as entries, and a trunk-spur model isformed through searching for electrical topological relationships; step 3, carrying out laying-out and line routing on insides of the nodes; step 4, carrying out uniform laying-out and position regularization on the undirected graph of "node-edge"; step 5, using a line routing algorithm to carry out line routing on connection relationships among the nodes; and step 6, converting the undirected graph of "node-edge" into the distribution network single-line graph. Engineering implementation efficiency is improved.

Description

technical field [0001] The invention relates to a method for automatically generating a single-line diagram of a power distribution network with a hybrid layout. Background technique [0002] The single-line diagram of distribution network is a logical diagram that graphically describes the topology relationship of all equipment within the power supply range of a feeder, and is one of the important tools for distribution network planning, design and operation management. The single-line diagram is composed of feeder electrical equipment primitives and connecting lines. It mainly realizes the complete and accurate expression of the equipment and its connection relationship. It requires the legibility and aesthetics of the generated graphics. The position of the equipment primitives in the figure does not represent the actual position of the equipment. . [0003] One-line diagrams traditionally use a "fish bone" layout, such as figure 1 As shown, that is, a fish skeleton str...

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Problems solved by technology

[0004] In recent years, the single-line diagram of the distribution network has been drawn on the basis of the traditional primary equipment such as switches, feeder sections, and distribution transformers, and management equipment such as switching stations, power distribution rooms, ring network cabinets, and branch boxes have been added, so it presents a mixed According to the layout requirements, the content of the one-line diagram is required to be more accurate and complete, not only including switches, feeder sections, distribution transformers and other equipment, but also adding management equipment such as switching stations, power distribution rooms, ring network cabinets, and branch boxes. However, in the prior art, there is no automatic drawing method for this kind of hybrid layout one-line diagram, and manual drawing is still required at present, with a huge workload

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