Electrified railway power grid system without negative sequence or spaced power supply networks in whole process

A technology for electrified railways and power supply systems, applied in power lines, railway vehicles, battery/battery traction, etc., can solve complex problems, and achieve the effects of increasing mechanical smoothness, simplifying complexity, and increasing safety

Inactive Publication Date: 2014-12-17
JILIN UNIV
View PDF7 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to support the full load of the traction power supply network, complex mechanical support structures must be provided

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
  • Electrified railway power grid system without negative sequence or spaced power supply networks in whole process
  • Electrified railway power grid system without negative sequence or spaced power supply networks in whole process
  • Electrified railway power grid system without negative sequence or spaced power supply networks in whole process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0038] Such as figure 1 as shown, figure 1 The front view of the external power supply for the line, including the anchor pillar, the upper part of the anchor pillar is fixed with a wrist arm, and two parallel catenary cables are fixed on the wrist arm. The distance between the catenary cables is 1.94m. The suspension strings are set between the load-bearing cables and the contact wires. The upper ends of the two parallel suspension strings are connected to the two load-bearing cables, the lower ends of the two suspension strings are connected to the two contact wires, and the two parallel contact wires are connected to the traction transformer. The two single-phase α and single-phase β power lines output by the secondary side of S are connected. There are two roads on the up and down of the railway, such as figure 1 As shown in the symmetri...

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 an electrified railway power grid system without any negative sequence or spaced power supply networks in a whole process. The electrified railway power grid system consists of an external power supply system and an internal power supply system. In external power supply, single-phase power supply is changed into double-phase power supply, and a single phase alpha and a single phase beta are input into an internal power supply system through contactors alpha' and beta' of the left and right arms of a double-phase pantograph. In internal power supply, when a double-phase pantograph T1 rises and a double-phase pantograph T2 falls, the single phase alpha is used for supplying power to a motor train unit, and the single phase beta is used for charging a storage battery; when T2 rises and T1 falls, the single phase alpha is used for supplying power to the storage battery, and the single phase beta is used for supplying power to the motor train unit. When both the double-phase pantograph T1 and the double-phase pantograph T2 fall, the storage battery is used for supplying power to the motor train unit under the condition of no external power supply. Power supply networks are not arranged at intervals in a plurality of running regions, a split-phase neutral segment is not provided, the power supply networks do not need mechanical support, and the motor train unit can run normally.

Description

technical field [0001] The traction power supply system is the power source to ensure the safe, stable and efficient operation of high-speed trains. It is responsible for the stable, continuous and reliable power supply to high-speed EMUs. It is one of the important infrastructures of electrified railways. The invention relates to a power supply system with no negative sequence in the whole electrified railway and no catenary intermittently, and is especially suitable for a supporting power supply system with no negative sequence in the whole high-speed railway and no contact power supply network intermittently. It is material saving, safe and reliable for the electrified railway grid Good important innovation. Background technique [0002] Electrified railway uses electric energy as the power source of the train, which is specially supplied to the external power supply and internal power supply system of the EMU. [0003] The external power supply system of the existing el...

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): B60M1/00B60L9/00B60L5/18B60M1/12
CPCB60M3/00B60M7/003B60L1/00B60L9/24B60L50/53B60L5/18B60L2200/26B60M1/22Y02T10/70B60L9/26B60M1/12
Inventor 宋玉泉管晓芳
Owner JILIN UNIV
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