Train power supply cabinet of electric locomotive

A technology for electric locomotives and power supply cabinets, applied to electrical components, output power conversion devices, AC power input to AC power output, etc., can solve problems such as inability to meet electricity demand, ensure normal power supply, and improve output capacity Effect

Active Publication Date: 2014-12-24
ZHUZHOU CSR TIMES ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of rail transit technology, electric locomotives are loaded with more and more

Method used

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  • Train power supply cabinet of electric locomotive
  • Train power supply cabinet of electric locomotive
  • Train power supply cabinet of electric locomotive

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example one:

[0033] Aiming at the defect that the existing train power supply cabinets of electric locomotives cannot meet the increasing power consumption requirements of electric loads, the present invention provides a new train power supply cabinet for electric locomotives. figure 1 The schematic diagram of the structure of the train power supply cabinet of the electric locomotive provided by this embodiment is shown.

[0034] Such as figure 1 As shown, the train power supply cabinet 101 provided in this embodiment includes a first switch 102 and at least three power supply branches with the same structure (for example, power supply branch 103a, power supply branch 103b, ..., power supply branch 103n, etc.). One end of the first switch 102 is connected to the AC input power source 100 (such as a silicon unit, etc.), and the other end is connected to each power supply branch through each port, so as to switch the required power supply branch from each power supply branch...

Example Embodiment

[0047] Embodiment two:

[0048] image 3 Shows the circuit schematic diagram of the train power supply cabinet for electric connection provided by this embodiment.

[0049] It can be seen from the figure that the train power supply cabinet provided in this embodiment includes three power supply branches with the same structure, namely, the power supply branch 103a, the power supply branch 103b, and the power supply branch 103c. In this embodiment, the power supply branch 103a and the power supply branch 103b are used as the default power supply branch, and the power supply branch 103c is the backup power supply branch. When the power supply branch 103a or the power supply branch 103b fails, the failed power supply The branch circuit is cut out, and the power supply branch circuit 103c, which is the backup power supply branch, is cut in, thus ensuring that the power supply branch circuit in the working state of the train power supply cabinet still has two circuits, so that the per...

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Abstract

The invention discloses a train power supply cabinet of an electric locomotive. The train power supply cabinet comprises a first switching switch and at least three power supply subcircuits identical in structure. The first switching switch is connected between an alternating-current input power supply and the at least three power supply subcircuits and used for switching out the required power supply subcircuit serving as a connection subcircuit and connected with the alternating-current input power supply, and normal power supply of the electric locomotive is guaranteed. The train power supply cabinet of the electric locomotive improves output capacity, when one or more power supply subcircuits work abnormally, the power supply cabinet can keep the same output capacity, and accordingly normal power supply of all electric loads is guaranteed.

Description

technical field [0001] The invention relates to the technical field of locomotives and trains, in particular to a train power supply cabinet for electric locomotives. Background technique [0002] In order to promote energy saving and consumption reduction of railways, and improve transportation efficiency, the Ministry of Railways has canceled the generator cars on a large scale, and at the same time promoted the use of DC600V train power supply cabinets of electric locomotives to supply power for the electric loads of electric locomotives. [0003] The structure of the existing electric locomotive train power supply cabinets is similar, and a centralized power supply control system is used to control the power supply circuit to supply power to the electric locomotive load. With the development of rail transit technology, electric locomotives are loaded with more and more electricity loads, and the existing train power supply cabinets can no longer meet the growing electric...

Claims

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Application Information

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IPC IPC(8): H02M5/48
Inventor 蔡杰李小平罗继光林波张先翔黄亮李英华欧阳天添
Owner ZHUZHOU CSR TIMES ELECTRIC CO LTD
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