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The power supply method used in the repair mode of crh380bl EMU

A technology of CRH380BL and power supply method, which is applied in the direction of electric vehicles, collectors, vehicle components, etc., can solve the problems of inability to take over the CCU, safety hazards of hard-wired short-circuiting, and inability to realize EMU unit-level maintenance, etc., so as to achieve simple equipment operation Reliable and improve maintenance efficiency

Active Publication Date: 2022-03-01
中国铁路上海局集团有限公司上海动车段
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the hard wire short connection method has certain safety hazards and cannot replace the internal start signal of the charger; the method of making jumper cables is too long and the data communication is unstable, so it cannot realize the unit-level maintenance of the EMU; and the method of external bus power supply calculation The power of the equipment is complex, the cost of new manufacturing or renovation is high, and it is impossible to take over the CCU and realize MVB communication

Method used

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  • The power supply method used in the repair mode of crh380bl EMU
  • The power supply method used in the repair mode of crh380bl EMU

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1, the power supply method for the CRH380BL type EMU erection repair mode, including external AC380V power supply, access of portable EMU power supply control equipment, establishment of medium-voltage power supply loops for all trains, establishment of low-voltage power supply loops for all trains, power supply Five parts of equipment status monitoring:

[0023] a. External AC380V power supply, the external power supply plug of the EMU is connected to the external power supply socket of 05 or 12 cars, and the 380AC external power supply is connected;

[0024] b. Portable EMU power supply control equipment is connected, and the portable EMU power supply control equipment is connected to the on-board MVB service interface and incorporated into the MVB network;

[0025] c. Establish a medium-voltage power supply loop for all columns. By controlling the start-stop network switch signal of the auxiliary converter, the single and double auxiliary coupling relays a...

Embodiment 2

[0028] Embodiment 2, the power supply method used in the CRH380BL type EMU erection repair mode, the portable EMU power supply control device includes a medium voltage power supply mode and a low voltage power supply mode, which can be selected according to the needs of the operator's test; wherein, the middle In the low-voltage power supply mode, by controlling the start-stop network switch signal of the auxiliary converter, controlling the closure of single and double auxiliary coupling relays, starting the auxiliary converter, so that the external AC380V power supply is connected to the 3AC380V medium-voltage busbar, providing power supply for medium-voltage equipment Maintain AC380V power supply; in the low-voltage power supply mode, by controlling the start-stop network switch signal of the battery charger, start the battery charger, charge the battery, and connect to the DC110V low-voltage bus to provide and maintain DC110V power supply for low-voltage equipment .

Embodiment 3

[0029] Embodiment 3, the power supply method for the CRH380BL type EMU erection repair mode, wherein, the portable EMU power supply control device includes an LCD liquid crystal display 1, a professional power supply control software 2, a power supply module 3, and a main Control board 4, a communication main board 5, a main control board with PCI-104 interface 6 and a communication main board with RS232 interface 7.

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Abstract

The invention discloses a power supply method for CRH380BL type EMU frame repair mode, including external AC380V power supply, EMU semi-physical simulation power supply equipment access, establishment of medium-voltage power supply loops for all trains, establishment of low-voltage power supply loops for all trains, The five parts of power equipment status monitoring realize the continuous power supply of the CRH380BL EMU in the erection repair mode, and can monitor and display the battery voltage in real time, so that the EMU can still carry out work with electricity in the decommissioning state, and the two-unit EMU The non-electric and live operations can be alternately interspersed at the same time, so as to improve the efficiency of the repair work of the EMU frame and shorten the maintenance cycle.

Description

technical field [0001] The technical proposal belongs to the related field of motor train technology, and particularly relates to the field of high-level maintenance of motor train units. Background technique [0002] In view of the characteristics of high efficiency and short cycle of the mainstream repair mode of CRH3 short-braided EMUs, the maintenance unit usually separates 8 / 9 cars of CRH380BL16-section long-braided EMUs, and uses the existing locomotive resources to carry out repairs. 8-section overall frame car repair. However, since the 16-car formation is divided into two independent units, and the original WTB train bus that runs through the entire train is disconnected, when the CCU software of the original 16-car formation train is used, the feedback signal of the second half of the train cannot be obtained, and the formation of A true communication loop and the lack of associated head and tail relays make it impossible to establish an effective security loop. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L1/00B60L9/00
Inventor 徐飒张幼庆张华池涛王建强陈哲陈晋华王晓东董韬汪怡泉徐平王珏
Owner 中国铁路上海局集团有限公司上海动车段
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