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Zinc oxide arrester simulation method and system

A simulation method and lightning arrester technology, applied in design optimization/simulation, piezoresistor core, overvoltage protection resistors, etc., can solve problems such as analysis and calculation of transient electromagnetic characteristics of lightning arresters, reduce calculation amount and improve simulation effect, the effect of improving the solution efficiency

Pending Publication Date: 2022-03-18
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the deficiencies of the prior art, the present invention provides a simulation method and system of a zinc oxide arrester, which solves the problem that the existing modeling method cannot analyze and calculate the instantaneous electromagnetic characteristics of the arrester, and improves the simulation effect of the zinc oxide arrester

Method used

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  • Zinc oxide arrester simulation method and system
  • Zinc oxide arrester simulation method and system
  • Zinc oxide arrester simulation method and system

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Effect test

Embodiment 1

[0049] Such as figure 1 As shown, Embodiment 1 of the present invention provides a simulation method for a zinc oxide arrester to analyze the influence of the arrester on the leakage current characteristics of the arrester due to moisture aging and moisture, so as to provide a reference for online monitoring of the health status of the zinc oxide arrester.

[0050] Specifically: according to the actual structure of the zinc oxide arrester, based on the finite element simulation analysis software, a two-dimensional finite element simulation calculation model of the zinc oxide arrester is established to solve the distribution of the current density vector in the entire target space, and then obtain the leakage current characteristics of the arrester .

[0051] Taking the establishment of a two-dimensional finite element simulation calculation model of a 220kV arrester and the simulation of leakage current as an example, the specific content includes the following:

[0052] S1: ...

Embodiment 2

[0066] Embodiment 2 of the present invention provides a simulation system of a zinc oxide arrester, including:

[0067] The data acquisition module is configured to: acquire the parameter data of the zinc oxide arrester;

[0068] The two-dimensional geometric model building module is configured to: construct a two-dimensional geometric model of the zinc oxide arrester according to the acquired parameter data;

[0069] The parameter assignment module is configured to: assign values ​​to the material property parameters of each part of the two-dimensional geometric model;

[0070] The two-dimensional electromagnetic simulation module is configured to: obtain a two-dimensional electromagnetic simulation model according to the assigned two-dimensional geometric model, and perform simulation on the zinc oxide arrester according to the two-dimensional electromagnetic simulation model.

[0071] The working method of the system is the same as the simulation method of the zinc oxide a...

Embodiment 3

[0073] Embodiment 3 of the present invention provides a computer-readable storage medium on which a program is stored, and when the program is executed by a processor, the steps in the simulation method for a zinc oxide arrester as described in Embodiment 1 of the present invention are implemented.

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Abstract

The invention provides a simulation method and system for a zinc oxide arrester. The method comprises the following steps: acquiring parameter data of the zinc oxide arrester; constructing a two-dimensional geometric model of the zinc oxide arrester according to the obtained parameter data; assigning the material characteristic parameters of each part of the two-dimensional geometric model; obtaining a two-dimensional electromagnetic simulation model according to the assigned two-dimensional geometric model, and performing analogue simulation on the zinc oxide arrester according to the two-dimensional electromagnetic simulation model; according to the method, the electromagnetic characteristics in the time domain range of the lightning arrester can be simulated and solved, the problem that an existing modeling method cannot analyze and calculate the instantaneous electromagnetic characteristics of the lightning arrester is solved, and the simulation effect of the zinc oxide lightning arrester is improved.

Description

technical field [0001] The invention relates to the technical field of zinc oxide arresters, in particular to a simulation method and system for zinc oxide arresters. Background technique [0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art. [0003] Zinc oxide arrester is an indispensable overvoltage protection device in the power grid, which can be used to limit the impact of lightning overvoltage on power equipment and maintain stable and reliable operation of power equipment. When it is under the rated voltage of the system, the arrester shows high impedance to the outside, and the leakage current is very small. When it is under the lightning impulse voltage, the conductivity of the arrester increases rapidly, and the lightning current flows to protect the electrical equipment from damage. Zinc oxide surge arresters are widely used in various power stations due to their good no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F17/11H01C7/112H01C7/12
CPCG06F30/23G06F17/11H01C7/12H01C7/112
Inventor 李鹏飞张皓段玉兵姚金霞马国庆刘均鹏马聪王兴帅师伟秦佳峰黄振宁胡晓黎刘萌刘辉周超张洋
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY
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