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High-voltage equipment state evaluation method, online monitoring device evaluation method and device

A technology of high-voltage equipment and monitoring devices, applied in the field of high-voltage equipment, can solve the problems of false alarms and low correct judgment rates of high-voltage equipment, and achieve the effects of improving the correct judgment rate, avoiding false alarms, and solving the high false alarm rate of high-voltage equipment

Active Publication Date: 2020-02-21
XUJI GRP +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method for evaluating the status of high-voltage equipment, which is used to solve the problem of low correct judgment rate of the evaluation of the operating status of high-voltage equipment; monitoring and evaluation problems, and at the same time solve the problem of false alarms of high-voltage equipment

Method used

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  • High-voltage equipment state evaluation method, online monitoring device evaluation method and device
  • High-voltage equipment state evaluation method, online monitoring device evaluation method and device
  • High-voltage equipment state evaluation method, online monitoring device evaluation method and device

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Experimental program
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Effect test

Embodiment 1

[0045] Embodiment one, specifically, such as image 3 As shown, the specific steps of the high-voltage equipment status assessment method based on spectrum intelligent identification are as follows:

[0046] Step (1) Establish a sample library of typical spectra to support the source analysis of spectra:

[0047]On the basis of the research on the spectrum generation technology of the online monitoring device, through the systematic analysis of the monitoring product design, materials and application environment, combined with the product field application and field test technology, the data of the online monitoring device under various working conditions are collected and sorted out. Various "distortion" spectrograms, as shown in Figure 1 and Figure 2, the characteristic parameters used for spectrogram pattern recognition include frequency, steepness, deviation, peak position, asymmetry, etc., in order to effectively identify "Undistorted" and "distorted" spectra provide ref...

Embodiment 2

[0056] Embodiment two: specifically, such as image 3 As shown, the specific steps of the high-voltage equipment status assessment method based on spectrum intelligent identification are as follows:

[0057] Step (1) Establish a sample library of typical spectra to support the source analysis of spectra:

[0058] On the basis of the research on the spectrum generation technology of the online monitoring device, through the systematic analysis of the monitoring product design, materials and application environment, combined with the product field application and field test technology, the data of the online monitoring device under various working conditions are collected and sorted out. Various "distorted" spectrograms and "non-distorted" spectrograms, as shown in Figure 1 and Figure 2, the characteristic parameters used for spectrogram pattern recognition include frequency, steepness, deviation, peak position, asymmetry degree, etc., to provide a reference template for effect...

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Abstract

The present invention discloses a high-voltage equipment state evaluation method, a high-voltage equipment on-line monitoring device evaluation method, a high-voltage equipment state evaluation apparatus and a high-voltage equipment on-line monitoring device evaluation apparatus. The high-voltage equipment state evaluation method includes the following steps that: acquired spectrograms are compared with an established typical spectrogram sample library, wherein the typical spectrogram sample library contains at least a variety of distorted type typical spectrograms; and whether the acquired spectrograms are distorted spectrograms or non-distorted spectrums is judged, when the acquired spectrograms are the distorted spectrograms, the distortion of the spectrograms is related to the fault of an on-line monitoring device, when the acquired spectrograms are the non-distorted spectrograms, the acquired spectrograms are used for judging the operating state of high-voltage equipment. With the methods and apparatuses of the invention adopted, the correct judgment rate of the operating state evaluation of the high-voltage equipment can be improved, and the operating state of the on-line monitoring device can be also monitored and evaluated.

Description

technical field [0001] The invention belongs to the field of high-voltage equipment, and in particular relates to a state evaluation method of high-voltage equipment, an online monitoring device evaluation method and a device. Background technique [0002] Based on the requirements of "big operation" and "big overhaul", accurate perception and reliability evaluation of equipment operation status and control status is one of the core contents of intelligent high-voltage equipment. In the construction of intelligent high-voltage equipment engineering, the on-site status collection and evaluation analysis of high-voltage equipment information is realized through the cooperation of sensors, intelligent components, networks and master stations at all levels. Poor usability, high rates of false alarms and missed alarms, etc., do not play a strong role in guiding condition-based maintenance. At the same time, due to various reasons, a large amount of equipment spectrum data collec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 路光辉周水斌徐传福于华东杨国田魏振华王伟杰雍明超庄益诗周钟和红伟卢声龚东武郭旭
Owner XUJI GRP
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