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Rail train, rail train power system and control method and control device thereof

A technology for rail trains and power systems, applied in the field of rail trains, can solve problems that affect train performance and fault operation capabilities, and achieve the effect of improving energy utilization

Active Publication Date: 2021-06-11
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in practical applications, the power system layout, energy management control strategy, power unit ratio, etc. all affect the train performance and fault operation capability.

Method used

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  • Rail train, rail train power system and control method and control device thereof
  • Rail train, rail train power system and control method and control device thereof
  • Rail train, rail train power system and control method and control device thereof

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Embodiment Construction

[0036] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] An embodiment of the present invention provides a rail train power system, wherein the rail train includes a plurality of vehicles, the rail train power system includes power units arranged side by side in sequence, and each power unit is respectively arranged in one-to-one correspondence with each vehicle, and each power unit They are respectively connected to the high-voltage busbars, and there is a switch between two adjacent power units; specifically, the power unit includes a power subsystem, a sub-manager and a traction converter, wherein the traction converter can provide traction for the vehicle. The power sub-manager can control the working status of the power subsystem and the traction converter, and can m...

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Abstract

The invention relates to a rail train, a rail train power system and a control method and control device thereof.The rail train power system comprises a main manager, a high-voltage bus and a plurality of power units connected with the high-voltage bus, wherein a switch is further arranged between every two adjacent power units; the power unit comprises a power subsystem, a sub-manager and a traction converter, and the sub-manager can control the working states of the power subsystem and the traction converters; the main manager is in signal connection with the sub-managers and can monitor state information of the power subsystems and the traction converters in real time and judge whether a fault unit is generated or not according to the state information; when the fault unit is generated, the fault unit is disconnected, and the main manager can determine the power set, wherein the fault unit is located in the power set, and the maximum voltage difference of all the power subsystems in the power set does not exceed a preset value; and the main manager controls all the switches in the power set to be switched on. The train fault operation capability can be effectively improved, and the train operation performance is improved.

Description

technical field [0001] The invention relates to the technical field of rail trains, in particular to a rail train, a rail train power system, a control method and a control device thereof. Background technique [0002] Compared with traditional pantographs and internal combustion locomotives, new energy trains such as hydrogen energy trains, the hydrogen power system composed of fuel cells and energy storage devices has the advantages of high efficiency and environmental protection, which is considered to be a huge potential in the field of rail transportation. New rail vehicles. [0003] However, in practical applications, the power system layout, energy management control strategy, power unit ratio, etc. all affect the train performance and fault operation capability. [0004] How to provide a control method for the power system of rail trains, which can effectively improve the train's fault-operating capability and improve the train's operating performance, is a technica...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L15/00
CPCB60L3/0023B60L3/003B60L15/007B60L2200/26
Inventor 刘铭徐磊梁建英田庆李艳昆周卓敏
Owner CRRC QINGDAO SIFANG CO LTD
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