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Method for evaluating running status of composite insulator

A technology of composite insulators, operating status, applied in the direction of measuring devices, instruments, measuring electricity, etc.

Inactive Publication Date: 2014-11-26
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The object of the present invention is to provide a composite insulator operating state evaluation method to solve the problems existing in the existing composite insulator operating state evaluation method

Method used

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  • Method for evaluating running status of composite insulator
  • Method for evaluating running status of composite insulator
  • Method for evaluating running status of composite insulator

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Embodiment Construction

[0016] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0017] The method for analyzing the operating state of the insulator based on the analysis of the microscopic properties of the material is based on the analysis of the microscopic properties of the operating insulator material, and establishes the relationship between the microscopic properties and the macroscopic overall performance of the insulator through a correlation algorithm, and then deduces the operating state of the insulator to be evaluated. figure 1 is the flow chart of composite insulator operating state assessment method. Such as figure 1 As shown, a method for evaluating the operating state of a composite insulator provided by the present invention includes:

[0018] Step 1: Obtain the values ​​of var...

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Abstract

The invention discloses a method for evaluating the running status of a composite insulator in the technical field of monitoring for composite insulators of transmission lines. The method comprises the following steps of: acquiring a numerical value of each micro parameter of the composite insulator; determining test results of a scanning electron microscope (SEM), a Fourier transform infrared spectroscopy (FTIR) and thermally stimulated current (TSC) respectively; optimizing weight values corresponding to the test results by utilizing a back propagation (BP) neural network algorithm; and calculating the running status of the composite insulator. Results obtained by action caused by changes in a plurality of items of micro performance are combined to comprehensively evaluate the running status of the composite insulator, so that the aim of accurately evaluating and mastering the running status of the insulator is fulfilled.

Description

technical field [0001] The invention belongs to the technical field of monitoring composite insulators of power transmission lines, and in particular relates to a method for evaluating the running state of composite insulators. Background technique [0002] Composite insulators have been widely used in power system transmission lines due to their light weight and strong anti-pollution flashover performance. However, during the long-term outdoor operation, due to the joint action of strong electric field, sunlight ultraviolet rays, acid rain, pollution, moisture, etc., the silicone rubber umbrella group and sheath of the composite insulator will gradually appear aging phenomena such as pulverization and hardening, resulting in its electrical, The gradual decline in mechanical properties has seriously affected the safe and reliable operation of transmission lines. Therefore, the evaluation and analysis of the operation status of composite insulators has become an urgent proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 汪佛池律方成刘云鹏刘杰
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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