Overhead transmission line differentiation state evaluation method

Abstract

The invention discloses an overhead transmission line differentiation state evaluation method, and the method comprises the steps: determining the state evaluation input quantity of a to-be-evaluatedoverhead transmission line according to expert evaluation information, line body information and an operation index quantity obtained through an online monitoring device; determining a section type towhich the overhead transmission line belongs according to the longitude and latitude of the overhead transmission line; and calling a line state evaluation model corresponding to the determined section type to realize differentiated state evaluation of the overhead transmission line. Differentiation evaluation of the working section of the ground wire can be well achieved, priority processing ofdefects is achieved for important areas such as crossing lines and disaster-prone areas, the reliability of a power system is improved as much as possible, the defect that evaluation is conducted onlyaccording to line operation data in a traditional method is overcome, and differentiated operation and maintenance of power transmission lines are facilitated.

Description

technical field [0001] The invention relates to the technical field of power system operation safety, in particular to a differential state evaluation method for overhead transmission lines. Background technique [0002] 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. 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. Therefore, how to improve the operation efficiency of overhead transmission lines, reduce operation and maintenance costs, and ensure the long-term normal and stable operation of the lines has become a key issue that needs to be solved urgent...

AI Technical Summary

Problems solved by technology

[0005] 2. Overhead transmission lines have a wide area and complex operating environment, which makes it difficult to obtain data;

[0006] 3. Insufficient intelligent analysis of status evaluation;

[0007] 4. The current state evaluation guidelines for transmission lines have not considered the influence of external environmental factors and line operation years, and cannot achieve differentiated state evaluation of lines

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