Evaluation method for running state of power transmission line

A technology for transmission lines and operating states, applied in the fields of instruments, probability networks, character and pattern recognition, etc., can solve the problems of lack of overall evaluation, harsh geographical environment, ignoring the validity and redundancy of evaluation parameters, and improve the acquisition efficiency. Effect

Inactive Publication Date: 2017-03-08
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the operation of high-voltage transmission lines presents the characteristics of wide distribution, harsh geographical environment and complex meteorological environment. The existing monitoring and evaluation mostly focus on the evaluation of a certain state (such as

Method used

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  • Evaluation method for running state of power transmission line
  • Evaluation method for running state of power transmission line
  • Evaluation method for running state of power transmission line

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Embodiment Construction

[0026] An embodiment of the present invention provides a method for evaluating the operating state of a transmission line to accurately and effectively evaluate the operating state of a high-voltage transmission line.

[0027] In order to enable those skilled in the art to better understand the technical solutions in the embodiments of the present invention, and to make the above-mentioned purposes, features and advantages of the embodiments of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention are described below in conjunction with the accompanying drawings The program is described in further detail.

[0028] See attached figure 1 , which shows a method for evaluating the operating state of a transmission line provided by an embodiment of the present invention, and the specific steps are as follows:

[0029] S101: Count historical failures, emergency or major defects, general defects and typical defects...

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Abstract

The invention discloses an evaluation method for the running state of a power transmission line. The method comprises that faults, emergency or severe defects and common and typical defect data over the years of parts in the power transmission line are arranged, parameters of the parts of the power transmission line are quantified, and a multidimensional matrix used for principle component analysis is constructed; key parameters of the parts in the power transmission line are determined; a Bayes network structure of the running state of the parts in the power transmission line is constructed, and the parts in the Bayes network structure include basic and protective facilities, towers, grounding wires, insulator chains, armor clamps, lightning-protection facilities, grounding devices and line protective zones; the state probabilities of the parts are calculated to construct a condition probability table; and defects of the parts of the power transmission line are evaluated. A mathematical model for evaluation parameters of different parts is established on the basis of the principle component analysis method, and the efficiency in obtaining evaluation indexes is improved.

Description

technical field [0001] The invention relates to the technical field of power system operation safety, and more specifically, relates to a method for evaluating the operation state of a transmission line. Background technique [0002] The overhead transmission line is the main artery of the power system, shouldering the heavy responsibility of transmitting electric energy, and is an important part of the power system. Since the overhead transmission line is put into operation, it must ensure its power transmission capacity as well as the level of safety and reliability of operation. The safe operation of the entire power system has brought different degrees of influence and threat. In this way, with the rapid growth of my country's electric power construction, the scale of the power network is increasing day by day, which puts forward higher requirements for the safe and stable operation, monitoring and protection of overhead transmission lines. [0003] At present, carryin...

Claims

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Application Information

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IPC IPC(8): G06Q10/00G06Q50/06G06N7/00G06K9/62
CPCG06Q10/20G06Q50/06G06N7/01G06F18/2135
Inventor 沈鑫曹敏周年荣黄星张林山闫永梅唐立军邹京希魏龄赵旭仝子靖
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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