Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and system for identifying the running direction of a single-track AT traction network train

A technology of running direction and traction network, applied in railway signaling and safety, etc., to achieve the effect of convenient implementation, simple and reliable principle, and easy engineering practice.

Active Publication Date: 2021-12-10
SOUTHWEST JIAOTONG UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The up and down power supply arms of double-track electrified railways generally fix the running direction of trains, but there is only a single power supply arm in the AT traction network of single-track electrified railways, and trains can travel in both directions. The direction of train running needs to be further identified

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
  • A method and system for identifying the running direction of a single-track AT traction network train
  • A method and system for identifying the running direction of a single-track AT traction network train
  • A method and system for identifying the running direction of a single-track AT traction network train

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, this example provides a single-line electrified railway AT traction network train running direction identification method, wherein the specific steps include:

[0031] In the normal operation state of the traction network, the current phasor distribution of the single-line AT traction network is as follows: figure 2 As shown, the traction network state measurement and control device collects the current phasor at the head end of the T line in each segment synchronously in real time and terminal current phasor F line head current phasor and terminal current phasor n is the number of traction network segments, n=1,2...N.

[0032] Calculation of segmental operation state criterion at time t m ∈ n. According to the value range of S, it can be divided into two situations, if S m >S set , to determine the train segment m, if S m ≤S set , the segment m is a non-train running segment, there is no need to continue to identify the train ...

Embodiment 2

[0038] Such as image 3 As shown, this example is a traction network train running direction identification system. The system sets data acquisition units at both ends of each AT segment for synchronous real-time acquisition of current phasors, multiple data acquisition units use fiber optic channels for data transmission, and send real-time acquisition data to the segmental operation status identification unit, To calculate the running state of the train, after obtaining the train running segment, the train running direction identification unit calculates the current ratio of the segment where the train runs, and calculates the train running direction criterion according to the current ratio to identify the train running direction.

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 specifically relates to a method and system for identifying the running direction of a single-line AT traction network train. The present invention mainly collects the current phasor values ​​of the T lines and F lines of each segment of the AT traction network, and calculates and judges the data to first judge which segment the train is running in, and then identify the running of the train according to the current ratio of the segment direction. The invention proposes a train running direction identification method, improves the train state measurement and control method of the traction network, and provides an important basis for the relay protection cooperation between the train and the single-line AT traction network. The algorithm principle of the invention is simple and reliable, easy to implement, can be directly applied to existing measurement and control systems, and is convenient for engineering practice.

Description

technical field [0001] The invention specifically relates to a method and system for identifying the running direction of a single-line AT traction network train. Background technique [0002] AT traction network has long power supply distance, low voltage loss, and effectively reduces rail potential and interference to communication lines along the line. It has become the preferred power supply structure for high-speed railways and heavy-duty railways in my country. With the development of the same-phase power supply and bilateral power supply technology, it can effectively solve the phase separation problem of the electrified railway traction network, and improve the power supply capacity and reliability. , the protection cooperation between the locomotive and the traction network is required. Therefore, the protection system needs to identify the running direction of the vehicle. The up and down power supply arms of double-track electrified railways generally fix the run...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B61L25/02
CPCB61L25/02B61L25/023
Inventor 王帅李群湛易东陈民武
Owner SOUTHWEST JIAOTONG UNIV