Grid-connected power supply control system for urban rail vehicles and urban rail vehicles

A technology for power supply control and urban rail vehicles, applied in the field of rail transit, can solve problems such as reducing the availability of auxiliary power supply redundancy and grid-connected power supply

Inactive Publication Date: 2019-01-01
CRRC DALIAN CO LTD
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the closing and opening of the medium-voltage bus contactor is only directly controlled by the output level of the network system, and does not contain any other auxiliary control logic, when the input and output modules of the network system fail, the train power supply system will exit the grid-connected power supply mode , which greatly reduces the redundancy of auxiliary power supply and the availability of grid-connected power supply

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
  • Grid-connected power supply control system for urban rail vehicles and urban rail vehicles
  • Grid-connected power supply control system for urban rail vehicles and urban rail vehicles
  • Grid-connected power supply control system for urban rail vehicles and urban rail vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] figure 1 The frame of the grid-connected power supply control system for urban rail vehicles provided by the embodiment of the present invention Figure 1 . Such as figure 1 As shown, the grid-connected power supply control system includes a first relay 11 and a medium-voltage bus contactor 12, the first relay 11 is connected to the...

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 embodiment of the invention provides a grid-connected power supply control system for urban rail vehicles and urban rail vehicles. The control system comprises a first relay and a medium-voltage bus contactor. The first relay is connected with the medium-voltage bus contactor and a processor, and is used for receiving a first control command sent by the processor, and controlling the opening or closing of the medium voltage bus contactor according to the first control command. In the grid-connected power supply control system, the opening or closing of the medium voltage bus contact is controlled by the first relay according to the received first control command, and is not controlled by the high-low level output by the network system, and therefore, the train power supply system is kept in the grid-connected power supply mode until the first relay receives the command to disconnect the control, even if the input and output module of the network system fails, thereby greatly improving the utilization rate of the grid-connected power supply mode.

Description

technical field [0001] Embodiments of the present invention relate to rail transit technology, in particular to a grid-connected power supply control system for urban rail vehicles and urban rail vehicles. Background technique [0002] The grid-connected power supply technology of the three-phase auxiliary power supply for urban rail vehicles is a new technology that has been gradually applied to the field of urban rail trains in recent years. As the grid-connected power supply is required to increase protection measures under fault conditions, the medium-voltage bus contact is introduced. switch, and the network system controls the closing and opening of the medium-voltage bus contactor to enter or exit the grid-connected power supply mode. [0003] When the communication is normal, the network system sends a high level or low level to the medium voltage bus contactor to control the closing or opening of the medium voltage bus contactor, and at the same time feeds back the ...

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): B60M3/00B61C17/00
CPCB60M3/00B61C17/00
Inventor 尹智勇南景宏李雨刘宇婷张晓亮蔡和旭
Owner CRRC DALIAN CO LTD
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