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Method and system for insulator temperature rise diagnosis

A diagnostic method and technology of insulators, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problem of low diagnostic accuracy of insulator temperature rise

Active Publication Date: 2018-08-03
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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Problems solved by technology

[0004] Based on this, it is necessary to provide an insulator temperature rise diagnosis method and system for the problem of low accuracy of insulator temperature rise diagnosis

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  • Method and system for insulator temperature rise diagnosis
  • Method and system for insulator temperature rise diagnosis
  • Method and system for insulator temperature rise diagnosis

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0043] The method for diagnosing the temperature rise of an insulator in the embodiment of the present invention can be applied to diagnosing the temperature rise of an insulator during operation and maintenance of a power transmission line. In the embodiment of the present invention, a composite insulator is taken as an example, and a method for diagnosing the temperature rise of an insulator is introduced in detail. The core idea of ​​the present invention is: the outer surface temperature is measured by the operator using the infrared thermal imager, combined with the ambient temperature, humidi...

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Abstract

The invention relates to a method and a system for insulator temperature rise diagnosis. The method comprises the following steps: according to a heat conduction equation of an insulator and a boundary condition corresponding to the insulator, establishing a radial temperature calculation model of the insulator, wherein the radial direction is the direction vertical to a center axis of the insulator; obtaining outer surface temperature of the insulator, insulator parameters, and environment parameters corresponding to the environment where the insulator is in; according to the outer surface temperature, the insulator parameters, the environment parameters, and the radial temperature calculation model, obtaining internal heat source temperature of the insulator; according to the internal heat source temperature, diagnosing temperature rise degree of the insulator. The insulator temperature rise diagnosis method can improve accuracy of insulator temperature rise diagnosis.

Description

technical field [0001] The invention relates to the technical field of power transmission and transformation equipment maintenance, in particular to an insulator temperature rise diagnosis method and system. Background technique [0002] In hot and humid areas, the problem of abnormal heating of insulators (such as composite insulators) is particularly serious, and the aging speed of heated insulators is accelerated. If it is not found in time, it may cause major accidents such as insulator breakage, which seriously threatens the safe and stable operation of the power grid. In order to ensure the safe and stable operation of the power grid, it is necessary to diagnose the temperature rise of the insulator. [0003] The traditional insulator temperature rise diagnosis scheme is mainly to directly measure the temperature of the outer surface of the insulator through an infrared thermal imaging camera. If there is a heating point, compare the temperature of the heating point w...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 雷超平栾乐莫文雄王勇王红斌许中李瀚儒
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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