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Visual ultrasonic detection system for partial discharge failure detection

A fault detection and partial discharge technology, applied in radio wave measurement systems, measurement devices, testing dielectric strength and other directions, can solve the problems of manual search for the location of sound sources, detection results not showing users in a visual way, and positioning results errors, etc. Achieve the effect of realizing ultrasonic positioning, visual detection and positioning, and high-precision ultrasonic positioning

Active Publication Date: 2014-08-06
BEIDA ZHENGSHI BEIJING TECH +4
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Problems solved by technology

At present, many research institutions at home and abroad have carried out research on partial discharge detection based on ultrasound. However, most of the existing research is oriented to the automatic positioning of partial discharge, but the positioning results often have errors due to various interferences and obstacles. The results are not presented to the user in a visual way, and many of them are ultrasonic detection equipment based on a single sensor, which requires manual search for the location of the sound source

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  • Visual ultrasonic detection system for partial discharge failure detection
  • Visual ultrasonic detection system for partial discharge failure detection
  • Visual ultrasonic detection system for partial discharge failure detection

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0025] as attached figure 1 As shown, this embodiment provides a visual ultrasonic detection system for partial discharge fault detection, the system includes a signal acquisition component and a calculation control component: the signal acquisition component collects ultrasonic signals and video signals, and converts the two signals Input the calculation control part, and complete the fusion processing of the above two signals through the calculation control part, and the fusion processing includes: calculating the ultrasonic intensity information in each direction of the space based on the ultrasonic signal; obtaining the scene information of the space where the ultrasonic signal is located based on the video signal; The ultrasonic intensity information and the spatial scene information are displayed together, and the position of the ultrasonic source...

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Abstract

The invention relates to a visual ultrasonic detection system for partial discharge failure detection. The system is characterized in that an ultrasonic sensor array is firstly adopted to acquire ultrasonic signals generated by power equipment, and ultrasonic intensity space distribution is evaluated; and meanwhile, video signals are acquired on the scene, and the ultrasonic intensity space distribution is visualized on the basis of the acquired ultrasonic signals and video signals, thereby visually displaying the space position of the partial discharge point as an ultrasonic source. By researching the partial discharge failure detection of the power equipment and designing the visual ultrasonic detection according to the distribution characteristics of the generated ultrasonic signals in the time domain and frequency domain, the system can detect the partial discharge phenomenon in the power equipment at high precision.

Description

technical field [0001] The invention relates to the field of fault detection of electric equipment, in particular to a visual ultrasonic detection system for partial discharge fault detection. Background technique [0002] Partial discharge is a fault phenomenon that needs to be detected in time in power equipment. It will cause insulation degradation of equipment and accelerate the process of insulation damage. Avoiding and removing partial discharge in time, so that the normal and safe operation of equipment has become the most important thing for power equipment maintenance personnel. In order to eliminate this latent fault phenomenon, many methods for online detection of partial discharge phenomenon have appeared. [0003] The detection of partial discharge is based on various physical phenomena generated by it, and the state, characteristics and location of the discharge are estimated. During the partial discharge process, electric pulses, electromagnetic radiation, ul...

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Application Information

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IPC IPC(8): G01R31/12G01S5/20
Inventor 张志平赵文彬王昕梁鹏超
Owner BEIDA ZHENGSHI BEIJING TECH
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