Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for assessing comprehensive state of power transmission cable

A transmission cable and comprehensive state technology, applied in the field of electric power, can solve the problems of lack of monitoring equipment to monitor the operation of cables, failure to consider the uncertainty of cable state evaluation, a large amount of prior knowledge and human resources, etc.

Inactive Publication Date: 2017-05-31
GUANGZHOU POWER SUPPLY CO LTD +1
View PDF9 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the calculation process of this method is too simplified and requires a lot of prior knowledge and human resources, and there is a lack of monitoring equipment to monitor the operation of the cable in real time
At present, there are also some online evaluation methods for cable status, but these methods do not consider the uncertainty in the evaluation of cable status, and these evaluation methods have a single evaluation system, low accuracy, and insufficient credibility

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 and system for assessing comprehensive state of power transmission cable
  • Method and system for assessing comprehensive state of power transmission cable
  • Method and system for assessing comprehensive state of power transmission cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of the present invention provides a comprehensive state evaluation method for a power transmission cable, see figure 1 As shown, it is a schematic diagram of the implementation flow of the comprehensive state evaluation method for a power transmission cable according to the first embodiment of the present invention. like figure 1 As shown, the comprehensive state evaluation method for a power transmission cable in this embodiment includes the following steps:

[0029] Step S101: Obtain relevant operation data obtained by real-time monitoring equipment monitoring the operation parameters of each cable component of the transmission cable to be evaluated, the relevant operation data including the monitoring value of each evaluated state quantity of each of the cable components;

[0030] Here, the cable components of the power transmission cable include a cable body, a cable intermediate joint and a cable channel; the assessed state quantities of the cable bod...

Embodiment 2

[0090] According to the method for evaluating the comprehensive state of the power transmission cable in the above embodiment, the present invention also provides a system for evaluating the comprehensive state of the power transmission cable, image 3 It is a schematic diagram of the composition and structure of the power transmission cable comprehensive state assessment system according to the second embodiment of the present invention. like image 3 As shown, the power transmission cable comprehensive state evaluation system in the second embodiment includes a data acquisition unit 201, a membership calculation unit 202, a weight calculation unit 203, a weighting unit 204, a correction unit 205, a fusion unit 206 and a state determination unit 207, wherein:

[0091] The data acquisition unit 201 is configured to acquire relevant operating data obtained by real-time monitoring equipment monitoring the operating parameters of each cable component of the power transmission cab...

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 and a system for assessing a comprehensive state of a power transmission cable. The method comprises the steps of obtaining related running data of each cable part of the power transmission cable, and determining a membership function value of each state level of each assessment state variable according to the related running data; obtaining a weight value of each assessment state variable; performing weighting processing on the membership function value of each state level of each assessment state variable according to the weight value to obtain a weighted membership function value; correcting each weighted membership function value through a confidence coefficient to obtain each state level and an uncertain confidence function value of each assessment state variable; and performing synthesis processing on each state level and the uncertain confidence function value of each assessment state variable to obtain each state level and an uncertain confidence function value of the power transmission cable, and determining the comprehensive state of the power transmission cable. By adopting the scheme, the state assessment accuracy and reliability of the power transmission cable can be improved.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a method and system for comprehensive state evaluation of a power transmission cable. Background technique [0002] With the widespread use of cables in the power grid, the corresponding operation and maintenance tasks are becoming more and more arduous, and the state evaluation that provides an important basis for cable operation and maintenance is also more and more important, which leads to the state evaluation of transmission cables. Evaluate and quantify various indicators of the cable, and determine the status of the cable through the quantified values, thereby providing an important basis for the operation and maintenance personnel to diagnose and maintain the cable. [0003] At present, the state evaluation of cables mainly uses the cable line state evaluation standard in the transmission line state evaluation guidelines to quantify the state of each component of ...

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 莫文雄覃煜雷超平肖天为方健唐文虎张然余泽远钱瞳
Owner GUANGZHOU POWER SUPPLY CO LTD