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Partial discharge ultrasonic signal processing method and device

A technology of ultrasonic signal and partial discharge, which is applied in the field of signal processing, can solve the problems of inaccurate statistics of discharge times, achieve the effect of improving statistical accuracy and solving inaccurate statistics of discharge times

Active Publication Date: 2017-06-30
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to provide a partial discharge ultrasonic signal processing method and device to solve the problem of inaccurate statistics of discharge times in the prior art

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  • Partial discharge ultrasonic signal processing method and device
  • Partial discharge ultrasonic signal processing method and device
  • Partial discharge ultrasonic signal processing method and device

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Embodiment Construction

[0025] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0026] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that the...

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Abstract

The invention discloses a method and a device for processing partial discharge ultrasonic signals. Wherein, the processing method of the partial discharge ultrasonic signal includes: collecting the waveform envelope signal; detecting the interval time between two adjacent wave packets in the waveform envelope signal; and using the interval time between two adjacent wave packets in the waveform envelope signal to determine Determine the amount of partial discharge ultrasound signal in the waveform envelope signal. The present invention solves the problem of inaccurate statistics of the discharge times in the prior art, and achieves the effect of improving the statistical accuracy of the discharge times.

Description

technical field [0001] The present invention relates to the field of signal processing, in particular, to a method and device for processing partial discharge ultrasonic signals. Background technique [0002] Ultrasonic partial discharge detection will inevitably encounter external noise interference. It is important to take effective signal processing methods, that is, to extract useful signal features. Generally, the following characteristic information is used to evaluate the phenomenon and degree of partial discharge: arrival time, number of discharges, amplitude, energy and duration, etc. [0003] Determining the number of discharges is a difficult point. At present, there is no solution that can count the number of discharges, resulting in inaccurate statistics on the number of discharges, which affects the analysis results of partial discharges. [0004] Aiming at the problem of inaccurate statistics of discharge times in the prior art, no effective solution has been...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
Inventor 陶诗洋段大鹏程序齐伟强任志刚刘弘景张天辰
Owner STATE GRID CORP OF CHINA