Method for evaluating and calculating lightning protection measure of line for reducing lightning strike risk

A calculation method and circuit technology, applied in the direction of calculation, special data processing applications, instruments, etc., can solve the problems of cumbersome calculation, unrealizable, no qualitative or quantitative measurement, etc., and achieve the effect of simple technical implementation and reduced complexity

Active Publication Date: 2016-03-30
STATE GRID FUJIAN ELECTRIC POWER CO LTD +3
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Method 1: The disadvantage is that the measures are too simplistic, and the effect of the lightning protection measures cannot be reflected after the transformation of a single lightning protection measure is considered alone, and the optimal value obtained through calculation is often impossible to achieve in reality
[0010] Method 2: Although differentiated lightning protection measures can solve the problems existing in extensive lightning protection transformation, at present, this method only focuses on providing reference for the lightning protection scheme of transmission lines, w...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for evaluating and calculating lightning protection measure of line for reducing lightning strike risk
  • Method for evaluating and calculating lightning protection measure of line for reducing lightning strike risk
  • Method for evaluating and calculating lightning protection measure of line for reducing lightning strike risk

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] Such as figure 1 As shown, this embodiment provides an evaluation and calculation method for lightning protection measures to reduce the risk of lightning strikes, including the following steps:

[0031] Step S1: Define the probability that the tower is relatively easy to be struck by mines as P L , and calculate

[0032] P L = N i N max ;

[0033] Among them, Ni represents the total number of lightning strikes within the custom range around the i-th pole tower of a specific voltage level line, N max Indicates the maximum value of the total number of lightning strikes within the custom range around all towers of the specific voltage level line through the corridor method;

[0034] Step S...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to method for evaluating and calculating a lightning protection measure of a line for reducing a lightning strike risk. The method comprises the following steps: firstly, defining a probability that a tower relatively easily subjected to lightning strike and a probability of a dangerous current at this section; considering impact factors of various lightning protection measures on the lightning risk of a specific voltage class line; orderly defining economic impact index values of the various lightning protection measures on the overall transformation of the specific voltage class line; and finally, obtaining a lightning strike risk value of the specific voltage class line. The invention provides the comprehensive evaluation and calculation method of the lightning protection measure for reducing the lightning strike risk of a power transmission line, so as to provide a certain reference for the improvement of lightning protection of the power transmission line to some extent.

Description

technical field [0001] The invention relates to the field of lightning protection, in particular to an evaluation and calculation method for reducing the risk of lightning strike by lightning protection measures for lines. Background technique [0002] The transmission line is the main artery of the power system, and its safe operation directly affects the stability of the power grid and the reliable power supply to users. The environment of high-voltage transmission lines is relatively harsh, and lightning strikes often cause line trips, and some even cause permanent faults on the lines to fail to reclose, endangering the safety and stability of the system. [0003] At present, some lightning protection measures commonly used on transmission lines mainly include: reducing the grounding resistance of towers, installing line arresters, strengthening insulation levels, erecting coupling ground wires, changing protection angles, and so on. At present, the actual application ef...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 许彬黄清海李冠颖
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap