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Electric locomotive leading-in trailer power supply emergency circuit and control method thereof

A technology for electric locomotives and emergency circuits, applied in emergency power supply arrangements, battery circuit devices, motor vehicles, etc., can solve problems such as battery damage and battery resource waste, and achieve the effects of improving transportation efficiency and reducing costs

Pending Publication Date: 2022-03-04
CRRC DALIAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) There is no direct connection between the 110V power supply of the electric locomotive and the 110V power supply of the trailer, resulting in the waste of battery resources;
[0005] (2) Simply connecting the 110V power supply of the electric locomotive and the 110V power supply of the trailer is also problematic, because the electric locomotive uses lead-acid batteries, and the trailer power supply uses alkaline batteries. If the parallel connection method of the trailer power supply is used , will cause the two batteries to charge each other, which will damage the battery

Method used

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  • Electric locomotive leading-in trailer power supply emergency circuit and control method thereof
  • Electric locomotive leading-in trailer power supply emergency circuit and control method thereof
  • Electric locomotive leading-in trailer power supply emergency circuit and control method thereof

Examples

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Effect test

Embodiment 1

[0031] In order to better illustrate the beneficial effects of the circuit of the present invention, take an existing domestic passenger electric locomotive charger that has been successfully operated for many years as an example. The circuit diagram and specific schematic diagram of the existing electric passenger train electric locomotive charger are as follows: figure 1 and figure 2 shown;

[0032] The concrete operating principle of this existing passenger train electric locomotive charger circuit is:

[0033] (1) The auxiliary converter of the electric locomotive outputs AC380V alternating current, supplies power to the load of the electric locomotive through the charger, and charges the battery of the electric locomotive at the same time to ensure normal operation.

[0034] (2) The existing passenger train trailer obtains a DC600V power supply from the electric locomotive, which is transformed into an AC380V power supply through the trailer's inverter, and the AC380V p...

Embodiment 2

[0037] Please refer to image 3 As shown, the present invention provides an emergency circuit for an electric locomotive leading into a trailer power supply, including a charger circuit 1 and a battery 2, one end of the charger circuit 1 is connected to the battery 2, the charger circuit 1 includes a circuit breaker 14, and one end of the circuit breaker 14 The first relay 11, the second relay 12, the third relay 15 and the fourth relay 16 are connected, and the other end of the fourth relay 16 is connected with a ten thousand-turn switch 18, and one end of the ten thousand-turn switch 18 is connected with a microcomputer signal input terminal 17, And the other end of the ten thousand turn switch 18 is connected with the first signal output end 19, one end of the storage battery 2 is connected with the charging module 10, one end of the charging module 10 is connected with the first relay 11, and the other end of the charging module 10 is connected with the fourth relay 16 con...

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Abstract

The invention relates to the technical field of electric locomotives, in particular to an electric locomotive lead-in trailer power supply emergency circuit and a control method thereof. Comprising a charger circuit and a storage battery, one end of the charger circuit is connected with the storage battery, the charger circuit comprises a circuit breaker, and one end of the circuit breaker is connected with a first relay, a second relay, a third relay and a fourth relay; when the charger of the electric locomotive breaks down or the storage battery breaks down, the power supply of the trailer is led into the electric locomotive, a DC110V power supply system of the electric locomotive can be maintained to operate normally, and the power supply of the trailer is led into the electric locomotive only by improving the original charger, so that the power supply of the electric locomotive can be saved. Train delay caused by faults of the DC110V power supply system of the electric locomotive can be avoided, the railway operation cost is greatly reduced, and the transportation efficiency is also improved.

Description

technical field [0001] The invention relates to the technical field of electric locomotives, in particular to an emergency circuit for introducing a trailer power supply from an electric locomotive and a control method thereof. Background technique [0002] The electric locomotive is the key equipment for the operation of the whole train, and it only has a single power supply system. Once the 110V control system power supply fails, the whole train will stop running, causing passenger delays, and thus bringing huge economic losses. The trailer has a large-capacity 110V power supply. As long as the electric locomotive continuously inputs a 600V train power supply for it, there will be no problem with its 110V power supply. [0003] But in prior art, there is following shortcoming: [0004] (1) There is no direct connection between the 110V power supply of the electric locomotive and the 110V power supply of the trailer, resulting in the waste of battery resources; [0005] (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J9/06H02J7/34B60L3/00
CPCH02J9/061H02J7/34B60L3/0046B60L2200/26
Inventor 张亮亮陈宇阳王莹林涛刘豁然丁艺恒
Owner CRRC DALIAN CO LTD
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