Railway traction current unbalance monitoring method and system

A technology of railway traction and electric current, which is applied in the direction of railway signals, railway car body parts, railway signals and safety, etc. It can solve the problems of railway traffic safety and traffic efficiency, relay error operation and other problems, and achieve simple and timely construction and installation The effect of strong resistance and short monitoring period

Pending Publication Date: 2017-12-19
北京信合永泰科技有限公司
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 25Hz phase-sensitive track circuit better solves the path of track occupancy detection and locomotive 50Hz traction current return. Since the 25Hz track circuit and the traction return flow act on the same track section, the unbalanced traction current will interfere w

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Railway traction current unbalance monitoring method and system
  • Railway traction current unbalance monitoring method and system
  • Railway traction current unbalance monitoring method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A railway traction current unbalance monitoring system, which is applied to the connection between electric locomotive traction electric and track circuit, refer to figure 1As shown, when the electric locomotive occupies the track circuit AG, the locomotive obtains the traction current (IQ) from the catenary and flows to the rail bar 1, rail bar 2 to the track side coil of the choke transformer through the locomotive pantograph, traction transformer, and locomotive wheel pair respectively. Terminal 1 (I1) and terminal 2 (I2), when I1 is equal to I2, there is no induced current in the signal side coil of the choke transformer, and there is no 50Hz current (i50) between the indoor distribution board, the protective box and the track relay, indicating the traction current is balanced. When the resistances R1, R2, R3, R4 connected to rail 1 and the resistances R8, R5, R6, R7 connected to rail 2 are not equal, the current I1 is not equal to I2, and the difference between the...

Embodiment 2

[0061] A method for monitoring unbalanced railway traction current,

[0062] S1. In the signal control mechanical room, the current of the track circuit is collected in real time through the current transformer. The current collection position is on the connecting line from the track relay, the protective box to the outside. In this way, the unbalanced interference current of 25HZ current and 50HZ current is detected by means of non-electrical contact through the current transformer, thus avoiding laying a large number of signal cables beside the track and saving investment. And the 25HZ current and 50HZ current are obtained through the current spectrum analysis;

[0063] S2. When it is detected that the 25HZ current has a sudden change at a certain moment, use this as the time reference point. If the 50HZ current at this moment is greater than a threshold, then generate interference current data; the specific method for generating interference current data is: refer to Figu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a railway traction current unbalance monitoring method and system. The method includes the following steps that S1, the current of a railway circuit is collected in real time, and the 25HZ current and the 50HZ current are obtained through analysis of a current spectrum; S2, when the situation that the 25HZ current breaks at a moment is monitored, the 50HZ current in the broken current is detected, and if the 50HZ current at the moment is higher than a threshold value, interference current data is generated; and S3, the 25HZ current, the 50HZ current and the interference current data are monitored in real time and sent to a terminal. According to the railway traction current unbalance monitoring method, in a signal mechanical room, traction unbalanced current generated on the railway circuit in the running process of an electric locomotive is collected at a high speed by adopting the non-electric contract sensing technology, the digital signal processing technology and the computer and internet technology, the sampling positions and the sampling chances are selected reasonably, and the problems of difficult transmission, dispersed detecting positions and inconvenient management and maintenance usually caused by in-situ signal collecting and testing are solved.

Description

technical field [0001] The invention relates to the field of electrified railways, in particular to a method and system for monitoring unbalanced railway traction current. Background technique [0002] The unbalanced traction current of electrified railway is the unbalanced current generated on the two rails and the choke transformer that provides the traction current loop during the traction process of the electrified railway electric locomotive. The signals of electrified railways in my country use a large number of 25Hz phase-sensitive track circuits in stations. The track circuits are used to detect the situation of trains occupying track sections, and realize the safety control of signals, turnouts and routes through railway signal interlocking equipment to ensure the safety of railway traffic. , the track circuit is the main technical equipment of my country's electrified railway. The 25Hz phase-sensitive track circuit better solves the path of track occupancy detectio...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B61L1/18B61L23/00G01R19/25
CPCG01R19/25B61L1/18B61L23/00
Inventor 朱企雄李健群
Owner 北京信合永泰科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap