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Method and system for discriminating partial discharge pulse interference signal based on mean shift clustering algorithm

A technology of partial discharge pulse and clustering algorithm, applied in computer parts, computing, measuring electricity and other directions, can solve problems such as pulse-type interference discrimination, and achieve the effect of improving accuracy

Pending Publication Date: 2020-11-20
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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Problems solved by technology

However, many interference signal processing methods studied by scholars at home and abroad are difficult to distinguish the pulse-shaped interference that is itself a partial discharge.

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  • Method and system for discriminating partial discharge pulse interference signal based on mean shift clustering algorithm
  • Method and system for discriminating partial discharge pulse interference signal based on mean shift clustering algorithm
  • Method and system for discriminating partial discharge pulse interference signal based on mean shift clustering algorithm

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Embodiment Construction

[0065] The method and system for discriminating partial discharge pulse interference signals based on the mean shift clustering algorithm described in the present invention will be further explained and illustrated below in conjunction with the accompanying drawings and specific embodiments of the specification. The program constitutes an improper limitation.

[0066] figure 1 It is a schematic flowchart of the steps of the method for discriminating partial discharge pulse interference signals based on the mean shift clustering algorithm according to the present invention.

[0067] Such as figure 1 As shown, in this embodiment, the method for discriminating partial discharge pulse interference signals based on the mean shift clustering algorithm described in the present invention includes the following steps:

[0068] (1) UHF partial discharge sensors are installed inside and outside the GIS equipment to collect the partial discharge PRPS spectrum of the GIS equipment in pai...

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Abstract

The invention discloses a method for discriminating a partial discharge pulse interference signal based on a mean shift clustering algorithm. The method comprises the following steps of (1) respectively arranging ultrahigh-frequency partial discharge sensors inside and outside GIS equipment; (2) converting the partial discharge PRPS atlas into a PRPD atlas; (3) clustering pulse data points in thePRPD atlas into a plurality of data clusters by adopting a mean shift clustering algorithm; (4) carrying out similarity calculation on the data clusters in each pair of PRPD atlas; matching a pair ofdata clusters of which the similarity is smaller than a set similarity threshold value into pairs; (5) positioning all the homologous signals on the basis of the intensity of the received signals; andif the amplitude of the data cluster acquired by the ultrahigh frequency partial discharge sensor arranged inside the GIS equipment in the pair of homologous signals is smaller than the amplitude ofthe data cluster acquired by the ultrahigh frequency partial discharge sensor arranged outside the GIS equipment, judging the signals as external pulse interference signals from the GIS equipment.

Description

technical field [0001] The invention relates to a method and system for discriminating interference signals, in particular to a method and system for discriminating partial discharge pulse interference signals. Background technique [0002] Gas-insulated switchgear (GIS) is one of the important accessories of the power system, and it is usually widely used in the power system. Therefore, the comprehensive perception of the status of gas-insulated combined electrical appliances is a prerequisite for ensuring the safe operation of the power grid, improving the control ability of the power grid, and realizing the intelligent operation of the power grid. [0003] The environment in which GIS is used is relatively complex, and there are usually a lot of interference signals around it. Therefore, the preprocessing of interference signals for the data collected by online monitoring equipment can effectively improve the accuracy of partial discharge pattern recognition in the GIS i...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G01R31/12
CPCG01R31/1254G06F2218/00G06F18/23213
Inventor 黄雪莜熊俊张宇张浩宁余伟洲
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD