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Vibration and Acoustic Detection Method of Transformer Operating State Based on Dirac Mixing Mechanism

An operating state, transformer technology

Active Publication Date: 2021-05-04
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Application Information

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Problems solved by technology

[0004] Although the transformer vibration and sound detection method is widely used in the monitoring of transformer operation status, and the technology is relatively mature, but because the vibration and sound detection method uses the vibration signal sent by the transformer, it is easily affected by environmental noise, so this method is not suitable for practical work. Unsatisfactory results are often not obtained when applied in the environment

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  • Vibration and Acoustic Detection Method of Transformer Operating State Based on Dirac Mixing Mechanism
  • Vibration and Acoustic Detection Method of Transformer Operating State Based on Dirac Mixing Mechanism
  • Vibration and Acoustic Detection Method of Transformer Operating State Based on Dirac Mixing Mechanism

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[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] figure 1 Schematic flow chart of the vibration and sound detection method for transformer operating status based on the Dirac mixing mechanism

[0022] figure 1 It is a schematic flow chart of the ...

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Abstract

The embodiment of the present invention discloses a method and system for detecting vibration and sound in the operating state of a transformer based on the Dirac mixing mechanism. The method includes: Step 1, inputting the measured vibration and sound signal sequence S; Step 2, judging according to the Dirac mixing probability Transformer operating state; specifically: if the Dirac mixing probability is at the Kth point of the vibration-acoustic signal sequence S, the transformer is in an abnormal operating state; otherwise, the transformer is in a normal operating state; where σ is the difference sequence of the vibration-acoustic signal mean square error; μ is the mean value of the difference sequence of the vibration-acoustic signal; ΔS K is the Kth element in the difference sequence of the vibro-acoustic signal.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a method and system for detecting vibration and sound in the operating state of a transformer. Background technique [0002] With the rapid development of smart grid, the safe and stable operation of power equipment is particularly important. At present, it is more and more important and urgent to carry out the operation state detection of the power equipment with ultra-high voltage and above voltage level, especially the detection of abnormal state. As an important part of the power system, the power transformer is one of the most important electrical equipment in the substation, and its reliable operation is related to the safety of the power grid. [0003] The basic principle of transformer operation state detection is to extract various characteristic quantities in the operation of the transformer, analyze, identify and track the characteristic quantities to monitor the abnorma...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/62G01H17/00G06F17/18
CPCG01H17/00G06F17/18G01R31/62
Inventor 翟明岳
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH