GIS mechanical fault diagnosis method and system based on chaotic cuckoo algorithm

A technology of mechanical faults and diagnostic methods, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve problems such as equipment sprawl, accidents, economic losses, etc., and achieve solutions that are difficult to determine and improve signal decomposition Effects of Speed ​​and Accuracy

Inactive Publication Date: 2018-10-16
STATE GRID CORP OF CHINA +1
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Problems solved by technology

[0003] At present, although the GIS in the power system has a high stability coefficient, there are still precedents of equipment running for a period of time or accidents occurring when the equipment is shipped.
In addition, during the operation process, due to the very high voltage level, there is a strong magnetic field inside the GIS, which will easily cause the tiny defects in the equipment to gradually spread, resulting in damage to the equipment and huge economic losses

Method used

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  • GIS mechanical fault diagnosis method and system based on chaotic cuckoo algorithm
  • GIS mechanical fault diagnosis method and system based on chaotic cuckoo algorithm
  • GIS mechanical fault diagnosis method and system based on chaotic cuckoo algorithm

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[0062] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0063] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0064] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinatio...

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Abstract

The invention discloses a GIS mechanical fault diagnosis method and system based on the chaotic cuckoo algorithm. For two common GIS mechanical faults of screw loosening and metal particle vibration,a VMD parameter is optimized with the chaotic cuckoo algorithm; GIS normal vibration signals and fault signals are subjected to VMD decomposition, and feature vectors with different fault type signalsare extracted; feature vector sets of training samples are clustered with the K-means clustering algorithm optimized through linearly decreasing weight PSO, and different clustering centers are obtained; feature vector sets of test samples are identified through the minimum euclidean distance rule, and diagnosis of GIS mechanical faults is achieved.

Description

technical field [0001] The invention relates to a GIS mechanical fault diagnosis method and system based on the chaotic cuckoo algorithm. Background technique [0002] In recent years, with the continuous improvement of voltage levels, higher requirements have been put forward for the reliability of power quality. While national power consumption is further improving, power grid accidents occur frequently. As an important link, GIS may cause large-scale power outages if it fails. Therefore, ensuring the safe operation of GIS is beneficial to the country and the people. [0003] At present, although the GIS in the power system has a high stability coefficient, there are still precedents of equipment running for a period of time or accidents occurring when it is shipped. In addition, during the operation process, due to the very high voltage level, there is a strong magnetic field inside the GIS, which will easily cause the tiny defects in the equipment to spread gradually, r...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 庄燕飞黄锐袁海燕冯迎春吕俊涛
Owner STATE GRID CORP OF CHINA
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