Analysis method, lightning arrester, analysis device and computer readable storage medium

An analysis method and lightning arrester technology, applied in the field of simulation calculation

Pending Publication Date: 2020-12-22
STATE GRID LIAONING ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is a lack of a technical solution that can accurately and effectively analyze the thermal stability of the arrester

Method used

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  • Analysis method, lightning arrester, analysis device and computer readable storage medium
  • Analysis method, lightning arrester, analysis device and computer readable storage medium
  • Analysis method, lightning arrester, analysis device and computer readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The present embodiment provides a kind of analysis method, is characterized in that, for such as figure 1 The illustrated arrester 100 was subjected to a thermal stability analysis that included:

[0031] S102. Establishing a geometric model based on the structure of the arrester;

[0032] S104. Input environmental parameters and electrical parameters for internal components of the arrester into the geometric model;

[0033] S106. According to the environmental parameters and the electrical parameters, input boundary conditions for the heat transfer process of the arrester into the geometric model;

[0034] S108. Perform adaptive grid division on each subdivision unit in the geometric model, and obtain a subdivision result;

[0035] S110. Based on the segmentation result and the boundary conditions, perform simulation analysis on the geometric model to obtain a temperature distribution diagram of the arrester.

[0036] In this embodiment, the geometric model of the a...

Embodiment 2

[0041] This embodiment provides an analysis method. In addition to the features of the above embodiments, this embodiment further includes the following technical features.

[0042] The establishment of a geometric model based on the structure of the arrester specifically includes:

[0043] S202. Establishing the physical structure of each component in the arrester respectively;

[0044] S204. Adjust the geometric relationship of the physical structure, so that the structural space of the arrester is continuous and the physical quantity of the arrester is continuous at the interface;

[0045] S206. Obtain the geometric structure in the lightning arrester to provide geometric entities for setting the boundary conditions and implementing the simulation analysis.

[0046] The purpose of this embodiment is to obtain accurate geometric entities for the arrester, so as to provide a basis for subsequent simulation analysis.

Embodiment 3

[0048] This embodiment provides an analysis method. In addition to the features of the above embodiments, this embodiment further includes the following technical features.

[0049] The physical structure includes at least one of the following or a combination thereof: insulating structure, positive electrode, negative electrode, resistance plate, spring mechanism, gasket, insulating rod, end flange, discharge area, gas area; the geometric relationship adjustment Including at least one or a combination of the following: chamfering setting, merging setting, array setting, coincident setting, concentric setting.

[0050] In other words, the establishment of a geometric model based on the structure of the arrester refers to the establishment of the arrester insulation structure, positive electrode, negative electrode, resistor plate, spring mechanism, gasket, insulating rod, end flange, discharge area, and gas area physical structure. Through operations such as chamfering, mergi...

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PUM

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Abstract

The invention provides an analysis method, a lightning arrester, an analysis device and a computer readable storage medium. The analysis method comprises the following steps: establishing a geometricmodel based on the structure of the lightning arrester; according to the environmental parameters and the electrical parameters, inputting the environmental parameters and the electrical parameters for the internal elements of the lightning arrester into the geometric model; inputting boundary conditions for the heat transfer process of the lightning arrester into the geometric model; performing adaptive mesh generation on each generation unit in the geometric model to obtain a generation result; and performing simulation analysis on the geometric model based on the subdivision result and theboundary condition to obtain a temperature distribution diagram of the lightning arrester. According to the technical scheme, accurate and efficient thermal stability analysis can be carried out on the lightning arrester.

Description

technical field [0001] The present invention relates to the technical field of simulation calculation, in particular, to an analysis method, a lightning arrester, an analysis device and a computer-readable storage medium. Background technique [0002] At present, most of the arresters commonly used in power systems are metal oxide arresters. The surge arrester presents a high-resistance state when the system is operating normally, the leakage current is extremely small, and the temperature of the device itself is not high. However, when there is a relatively high overvoltage in the system, the arrester discharges a large amount of energy, the discharge current can reach the level of ten thousand amperes, and the temperature of the equipment rises sharply. In addition, the valve plate of the arrester is prone to moisture and aging under the condition of long-term operation or poor sealing of the equipment body, which reduces its overall performance. The performance degradat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/23G06F119/08
CPCG06F30/23G06F2119/08
Inventor 崔巨勇耿莉娜于永滨刘刚马一菱韦德福王帅韩洪刚李静郝双鲁旭臣朱思彤
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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