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Method and device for determining modeling boundary of large-area power grid, equipment and medium

A large area and boundary technology, applied in circuit devices, electrical components, AC network circuits, etc., can solve problems such as large leakage current density, large grid interference voltage, unrealistic detailed modeling, etc., and achieve the effect of error control.

Active Publication Date: 2021-10-01
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of land resources and the similarity in the choice of construction paths between the two, it is inevitable that the two will have long-distance small-distance parallel or even cross-crossing situations, resulting in a large interference voltage on the pipeline, resulting in relatively large Large leakage current density, causing personal safety and pipeline corrosion problems
[0003] The interference voltage on the pipeline is jointly generated by all the transmission lines in the power grid, but there are so many transmission lines that make up the power grid. When analyzing the continuous interference of the large-area power grid to the buried metal pipeline, it is not enough to model all the transmission lines in detail. Realistic, so the existing researches all take the interference of a single or a few transmission lines on the pipeline as the research object, but this will lead to a large difference between the analysis results and the actual situation

Method used

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  • Method and device for determining modeling boundary of large-area power grid, equipment and medium
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  • Method and device for determining modeling boundary of large-area power grid, equipment and medium

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Experimental program
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Embodiment 2

[0098] like Figure 7 As shown, the present invention provides a device for determining the boundary of large-scale power grid modeling, including:

[0099] Interference characteristics acquisition module: used to calculate the interference characteristics of transmission lines under different voltage levels and conductor arrangements, and obtain the variation law f(d) of the distance between transmission lines and pipelines;

[0100] Threshold determination module: used to determine the threshold M of the minimum continuous interference voltage component modulus to be considered;

[0101] Truncation boundary determination module: used to determine the modeling boundary L of different types of transmission lines according to the minimum continuous interference voltage component modulus threshold M and the relationship f(d) between the interference voltage and the distance between transmission lines and pipelines, and then the entire large area can be obtained Modeling Boundar...

Embodiment 3

[0103] A kind of computer equipment provided by the present invention, such as Figure 8 As shown, it includes an electrically connected memory and a processor, wherein the memory stores a calculation program that can run on the processor, and when the processor executes the calculation program, the above-mentioned determination of the modeling boundary of the large-scale power grid is realized. method steps.

[0104] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

Embodiment 4

[0106] If the functions are realized in the form of software function units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium executable by a processor. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes. ....

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Abstract

The invention discloses a method and device for determining a modeling boundary of a large-area power grid, equipment and a medium. The method comprises the steps: firstly constructing a continuous interference analysis model of a power transmission line on a pipeline, obtaining a saturation parallel length, and calculating and obtaining a relation between an interference voltage and a distance between the power transmission line and the pipeline under the saturation parallel length; determining the minimum continuous interference voltage component threshold value needing to be considered according to actual pipeline corrosion and personal safety requirements, and then obtaining the interference range of the power transmission line under different voltage grades and wire arrangement modes, namely, the modeling boundary of continuous interference analysis of a large-area power grid on the pipeline is obtained. According to the invention, the continuous interference of the whole power grid on the pipeline is considered, errors caused by the truncation boundary can be quantitatively analyzed, and the error is controllable.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to a method, device, equipment and medium for determining the modeling boundary of a large-area power grid. Background technique [0002] With the rapid development of the economy, the demand for energy is increasing day by day, and the uneven distribution of energy has prompted the rapid construction of transmission lines and oil and gas pipelines, and the scale of power grids and oil and gas pipeline networks has also continued to increase. Due to the limitation of land resources and the similarity in the choice of construction paths between the two, it is inevitable that the two will have long-distance small-distance parallel or even cross-crossing situations, resulting in a large interference voltage on the pipeline, resulting in relatively large Large leakage current density, causing personal safety and pipeline corrosion problems. [0003] The inter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 郭磊寇晓适鲁海亮丁国君李纯张科董曼玲李元杰刘阳姚伟
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST