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Virtual node-based power grid single line diagram automatic layout method

A virtual node and automatic layout technology, which is applied in the fields of electrical digital data processing, instruments, computer-aided design, etc., to achieve the effect of simple connection, reduction of calculation dimension, and improvement of calculation accuracy

Inactive Publication Date: 2021-06-01
YANSHAN UNIV
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Problems solved by technology

The present invention applies the differential evolution algorithm, adopts the comprehensive layout and routing method, and introduces a penalty item in the objective function, effectively solving the problem of automatic layout of the single-line diagram of the ring-shaped radiation grid, and by introducing virtual nodes, it can be more accurately and quickly Complete the automatic layout of the one-line diagram

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  • Virtual node-based power grid single line diagram automatic layout method
  • Virtual node-based power grid single line diagram automatic layout method
  • Virtual node-based power grid single line diagram automatic layout method

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[0072] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0073] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0074] figure 1 It shows the automatic layout method of the grid one-line diagram based on virtual nodes of the present invention, the method includes the following steps:

[0075] S1. Obtain the initial layout diagram: read the topological structure of the power grid, obta...

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Abstract

The invention provides a virtual node-based power grid single line diagram automatic layout method, which comprises the following steps of: reading a power grid topological structure, acquiring all node and line sets, performing first-stage layout on all node lines by applying a first differential evolution algorithm to obtain an initial layout diagram, applying a second differential evolution algorithm to carry out optimized layout of a main region in the second-stage layout, determining the range of a virtual region based on virtual node coordinates, applying a third differential evolution algorithm to carry out layout of the virtual region in the second-stage layout, and carrying out layout in the range of the virtual region corresponding to each virtual node, obtaining the coordinate of each node, and completing the automatic layout of the power grid single line diagram. According to the method, a differential evolution algorithm is applied, a comprehensive layout and routing mode is adopted, a penalty term is introduced into a target function, the problem of automatic layout of the single line diagram of the annular belt radiation power grid is effectively solved, and automatic layout of the single line diagram can be completed more accurately and quickly by introducing virtual nodes.

Description

technical field [0001] The invention belongs to the technical field of automatic layout of single-line diagrams of power grids, in particular to a method for automatic layout of single-line diagrams of power grids based on virtual nodes. Background technique [0002] The power grid single-line diagram clearly displays the power grid topology in the form of graphics, provides more intuitive graphics for power engineers, and plays an important role in power grid monitoring and analysis. With the continuous expansion of the grid scale, the appearance of the ring network with radial structure puts forward higher requirements for the one-line diagram. The single-line diagram of the power grid is divided into the single-line diagram of the transmission network and the single-line diagram of the distribution network. [0003] In terms of transmission network, "horizontal, horizontal and vertical" is the mainstream way of one-line diagram layout at present. In previous studies, som...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/18G06Q50/06G06F113/04
CPCG06Q50/06G06F30/18G06F2113/04
Inventor 李学平王耀堃闫昱清
Owner YANSHAN UNIV
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