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Method for evaluating running status of composite insulator

A composite insulator, operating state technology, used in measuring devices, instruments, measuring electricity, etc.

Inactive Publication Date: 2013-01-16
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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  • Summary
  • 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

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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 are described in detail below in conjunction with the drawings. It should be emphasized that the following description is only exemplary, and is not intended to limit the scope of the present invention and its application.

[0017] The insulator operating state analysis method based on material micro performance analysis is based on the operating insulator material micro performance analysis. The relationship between the micro performance and the insulator macro overall performance is established through related algorithms, and the operating state of the insulator to be evaluated is derived. figure 1 It is the flow chart of the evaluation method of composite insulator operating state. 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 the microscopic parameters of the composite insulator, including the use of scanning el...

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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 power transmission line composite insulator monitoring, and in particular relates to a method for evaluating the operating state of composite insulators. Background technique [0002] Composite insulators have been widely used in power transmission lines for their light weight and strong anti-pollution flashover performance. However, during long-term outdoor operation, due to the combined effects of strong electric field, sunlight and ultraviolet rays, acid rain, pollution, moisture, etc., the composite insulator silicone rubber umbrella group and sheath will gradually appear chalking, hardening and other aging phenomena, resulting in electrical, The gradual decline in mechanical performance has seriously affected the safe and reliable operation of transmission lines. Therefore, the evaluation and analysis of the operating status of composite insulators has become an urgent problem in the power industry. The ...

Claims

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Application Information

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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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