Method for processing lightning-protection transformation evaluation information of electric transmission line

An information processing method and transmission line technology, which are applied in the field of lightning protection transformation evaluation information processing of transmission lines, can solve problems such as difficulty in measuring product quality, difficulty in evaluating lightning protection transformation effects, etc., and achieve the effect of simple and practical evaluation methods.

Inactive Publication Date: 2013-02-27
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
View PDF7 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong randomness of lightning activities and lightning strikes, it is difficult to evaluate the effect of lightning protection transformation, and the quality of products is not easy to measure, causing great confusion to the production department

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 processing lightning-protection transformation evaluation information of electric transmission line
  • Method for processing lightning-protection transformation evaluation information of electric transmission line
  • Method for processing lightning-protection transformation evaluation information of electric transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0020] Such as figure 1 As shown, a transmission line lightning protection reconstruction evaluation information processing method includes the following steps;

[0021] In step 10, the information before and after the lightning protection transformation of the line to be evaluated is collected, including the number of trips and the number of running kilometers.

[0022] In step 11, the operating trip rate of the line before and after the transformation is calculated according to the collected information, and the operating trip rate is the ratio of the number of trips to the number of operating kilometers.

[0023] In step 12, according to the collected information, the calculated tripping rate of the line before and after the transformation under the actual lightning parameters is obtained.

[0024] The actual lightning parameters include the lightning density Ng and the lightning current amplitude probability distribution P(I) within the transmission line corridor radius w...

example 1

[0034] In Table 1, lines A1 and A2 have the same number of trips before and after installation, but the actual thunderstorm intensity is different after installation. The calculation indicators are as follows:

[0035] TP IPI (A1)=0.2*0.2 / 0.1+0.8*0=0.4

[0036] TL IPI (A2)=0.2*0.1 / 0.2+0.8*0=0.1

[0037] In Table 1, line A1 has no change in the number of trips, but the actual thunderstorm intensity after installation is not as strong as before installation, which cannot explain any problems; line A2 has no trip, but the actual thunderstorm intensity after installation is stronger than before installation, which can indirectly explain the resistance after installation Severe thunderstorms become more powerful.

[0038] Table 1 Line lightning protection retrofit performance index TL IPI (No change in trip times)

[0039] Line name: A Length: 100 kilometers

[0040]

example 2

[0042] In Table 2, the number of trips of line B1 after installation is less than that before installation, but the actual thunderstorm intensity after installation is not as strong as before installation, and the calculation indicators need to be explained:

[0043] TL IPI (B1)=0.2*0.2 / 0.1+0.8*(0.03-0.05) / (0.03+0.05)=0.2

[0044] Line B2 has fewer trips after installation than before installation, but the actual thunderstorm intensity after installation is stronger than before installation, indicating that there is an effect after installation, but the same type of comparison needs to be calculated. Index description:

[0045] TL IPI (B2)=0.2*0.1 / 0.2+0.8*(0.03-0.05) / (0.03+0.05)=-0.1

[0046] TL IPI (B2)IPI (B1), although the number of trips before and after installation changes the same, but the lightning intensity after installation is greater than before installation, so the transformation measures are still effective.

[0047] Table 2 Line lightning protection retrofit...

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 a method for processing the lightening-protection transformation evaluation information of an electric transmission line. The method comprises the following steps: 1) acquiring the information of a line to be acquired before and after lightning-protection transformation, wherein the information comprises trip times and operation mileage; 2) calculating the operation trip rate of the line before and after the transformation according to the acquired information; 3) obtaining a calculated trip rate of the line before and after transformation under a practical thunderclap parameters according to the acquired information; and 4) obtaining a quantitative evaluation result of the lightning-protection transformation of the line according to the calculated results of the steps 2) and 3) and the set lightning-protection transformation indexes. Compared with the prior art, the method has the advantages that the evaluation method is simple and practical, the evaluation result is intuitive, and the like.

Description

technical field [0001] The invention relates to a data processing method of an electric power system, in particular to a method for processing evaluation information of lightning protection reconstruction of transmission lines. Background technique [0002] In recent years, with the continuous enrichment of operation experience and the improvement of design level, the operation reliability of transmission lines has been greatly improved. On the one hand, the operating overvoltage of the power transmission system has been limited to a relatively low level, and line flashover faults caused by operating overvoltage rarely occur; on the other hand, good results have been achieved in external insulation work in recent years, and pollution The lightning control work has been greatly promoted, and the AC withstand voltage level of the line has been steadily improved. Under such circumstances, the flashover trip caused by lightning overvoltage has gradually increased and has become ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06Q50/06
Inventor 司文荣傅晨钊杨凌辉
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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