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Power transmission line tower lightning damage risk assessment system and method

A risk assessment system and transmission line technology, applied in the field of transmission line tower lightning damage risk assessment system

Pending Publication Date: 2022-04-08
WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is a lack of research on mine risk assessment for towers

Method used

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  • Power transmission line tower lightning damage risk assessment system and method
  • Power transmission line tower lightning damage risk assessment system and method
  • Power transmission line tower lightning damage risk assessment system and method

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0017] A lightning hazard risk assessment system for power transmission line towers, including a lightning risk factor determination module 1, an influencing factor risk level division module 2, a risk level membership degree calculation module 3, a lightning risk judgment matrix establishment module 4, and a lightning disaster risk comprehensive evaluation module 5 ;

[0018] The lightning risk factor determination module 1 is used to determine the influencing factors affecting the lightning risk of the tower; the influencing factors include a first layer of influencing factors and a second layer of influencing factors, and the first layer of influencing factors includes lightning risk, regional risk, The lightning resistance level of transmission lines, the second layer of influencing factors include lightning flash density, lightning current ...

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Abstract

The invention discloses a power transmission line tower lightning damage risk assessment method, which comprises the following steps: firstly, acquiring various parameters of a line tower, including ground lightning density, lightning current intensity, landform, altitude and soil resistivity, calculating to obtain the membership degree of each risk level of the tower parameters, establishing a judgment matrix through a method of comparing the importance of every two, and calculating the degree of membership of each risk level of the tower parameters; the weight coefficient of each influence factor is obtained through matrix calculation, so that the lightning damage risk level of the line tower is obtained, and reference is provided for line differentiation lightning protection.

Description

technical field [0001] The invention belongs to the technical field of power grid lightning protection, and in particular relates to a system and method for lightning damage risk assessment of power transmission line towers based on analytic hierarchy process. Background technique [0002] In order to ensure the safety, reliability and stability of power supply, a lot of research and analysis have been carried out at home and abroad. Lightning is one of the important reasons for the tripping and damage of transmission lines. Different measures, such as installing lightning protection lines, installing lightning arresters with air gaps, installing lightning flashover limiters, reducing tower grounding resistance, increasing the length of insulator strings, etc. Therefore, it is of great significance to carry out lightning risk assessment on pole towers, take differentiated lightning protection for lines with different lightning risks, and improve the lightning resistance leve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06F16/29G06F17/16G06Q50/06
Inventor 石泽灏王利民胡杨赵淳李健李哲雷梦飞卢泽军王宇曹伟吴敏王佩林卿任华张永刚刘玉欢
Owner WUHAN NARI LIABILITY OF STATE GRID ELECTRIC POWER RES INST
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