Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Full-parallel AT traction network fault location method

A technology of fault distance measurement and traction network, which is applied to fault location, fault detection according to conductor type, and electrical measurement, etc., which can solve problems such as poor adaptability and complex implementation

Active Publication Date: 2020-10-20
SOUTHWEST JIAOTONG UNIV
View PDF16 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current fault location scheme has problems such as complex implementation and poor adaptability

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
  • Full-parallel AT traction network fault location method
  • Full-parallel AT traction network fault location method
  • Full-parallel AT traction network fault location method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0071] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0072] Generally, the fully parallel AT traction network has 2-3 AT segments. However, in the case of cross-regional power supply, etc., the AT segments of the traction network can reach 4-6. In order to express the versatility of the method of the present invention, adopt as figure 1 Indicates fully parallel AT traction network. In the figure, ATP1 represents the traction substation, ATPi (i=2...n, where n≥3) represents the AT substation or divisional substation, T, R, F represent the contact line, rail, and feeder respectively, and D i (i=1...n-1) indicates the length of each power supply section, QF 2i-1 (i=1...n), QF 2i (i=1...n) represent the double-pole feeder circuit breakers of the uplink and downlink kiosks respectively, Respectively represent the circuit breaker QF 2i-1 , QF 2i The current flowing through the T line; Resp...

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 discloses a full-parallel AT traction network fault location t method, which comprises the following steps that: when a fault occurs, synchronously acquiring the states of uplink and downlink bipolar feeder circuit breakers of each kiosk and the current flowing through the circuit breakers, and constructing a traction network parallel state matrix and a feeder current matrix; constructing a current state matrix and a fault state matrix; and judging whether the fault section is an uplink and downlink parallel section post-ranging section, or judging whether the fault section is asingle-line AT section post-ranging section, or judging the fault type post-ranging section. The invention has the following beneficial effects: the operation mode of the traction network is characterized by the switch state matrix, the fault section is identified by the current state matrix and the fault state matrix, and finally the fault distance calculation is realized by three classified fault location methods, which can realize the fault location in normal power supply operation mode and various abnormal power supply operation modes. The method has the characteristics of accurate distance measurement, high applicability and the like.

Description

technical field [0001] The invention relates to electrified railway traction network technology, in particular to a method for fault distance measurement of fully parallel AT traction network. Background technique [0002] The electrified railway traction network has the characteristics of complex structure and high failure rate. Accurate and reliable fault location is very important for quickly finding fault points, repairing fault lines in time, shortening power outage time, and ensuring transportation order. [0003] The power supply operation mode of the fully parallel AT traction network is determined by the on-off state of each switch. In normal power supply mode, all traction network switches are closed. However, due to different power supply requirements of users, some equipment failures or maintenance exits, some circuit breakers of the traction network will be in the disconnected state, and the traction network is in an abnormal power supply operation mode at this...

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 Applications(China)
IPC IPC(8): G01R31/08G01R19/10
CPCG01R19/10G01R31/086G01R31/088
Inventor 韩正庆刘淑萍李帅高仕斌沈睿吴海波韦晓广
Owner SOUTHWEST JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com