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Pantograph arc energy measurement method

An arc energy and pantograph technology, applied in the field of pantograph arc energy testing, can solve problems such as inability to respond to arc energy

Inactive Publication Date: 2016-03-30
SOUTHWEST JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] The purpose of the present invention is to provide a pantograph-catenary arc energy measurement method, which overcomes the defect that the existing measurement method can only count the number of arcing times and arcing time, and cannot reflect the arc energy

Method used

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Embodiment Construction

[0014] The process of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] A pantograph-catenary arc energy measurement method provided by the present invention, its specific implementation is as follows: 1) Weld two aluminum alloy plates on the car body below the pantograph on the roof of the EMU, and use a tap to turn the aluminum alloy plate The threaded hole with a diameter of 6mm is used to install and fix the high-speed camera on the aluminum alloy plate. The recording trigger channel of the high-speed camera is connected with the signal output channel of the roof spark sensor. When the pantograph-catenary arc occurs, the roof spark sensor outputs pulses. signal to trigger the high-speed camera to collect pantograph-catenary arc images, such as figure 1 Shown; 2) Utilize the image processing module image_processing_toolbox of matlab software to carry out binarization processing to the pantograph-catenary ...

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Abstract

The invention discloses a pantograph arc energy measurement method used for the information management of the arcing image of the pantograph arc photographed by a high-speed camera. The method is characterized in that the arcing image of the pantograph arc is subjected to the binarization treatment to obtain the arc boundary perimeter. After that, the arc boundary perimeter is brought into a relevant empirical model to be processed, so that the pantograph arc energy can be obtained. According to the technical scheme of the invention, an effective means is provided for the quantitative measurement of the pantograph arc energy information at an operating site. According to the method, a user only needs to photograph the image of the pantograph arc by the high-speed camera in the non-contact manner, and then the information of the arc boundary perimeter in the arcing image of the pantograph arc is obtained. Meanwhile, based on the relationship between the arc boundary perimeter and the pantograph arc energy, the intensity information of the pantograph arc can be obtained. In this way, the user no longer needs to measure the voltage, the current and other information of the pantograph arc during the arcing process. the on-site and on-line detection of the pantograph arc energy is facilitated.

Description

technical field [0001] The invention relates to a pantograph-catenary arc energy testing method, belonging to the technical field of electrified railways. Background technique [0002] With the increase of the running speed of the EMU, the pantograph-catenary vibration and sliding intensified, the pantograph-catenary offline is frequent, and the pantograph-catenary arc occurs frequently, which seriously affects the service performance of the pantograph-catenary material and the flow quality of the EMU. One of the three basic relationships for safe operation. The pantograph-catenary arc will cause burns and ablation of the pantograph slide plate and the catenary wire, accelerate the aging of the pantograph-catenary friction pair material, and reduce the service performance of the pantograph-catenary system. Safe and stable work. The burning and ablation of the pantograph-catenary arc on the material of the friction pair of the pantograph-catenary arc and the harmonics of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 高国强吴广宁魏文赋张血琴高波古圳胡海星胡怡
Owner SOUTHWEST JIAOTONG UNIV
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