Multiple-voltage power supply for railway vehicle

A railway vehicle, multi-voltage technology, used in the traction of railway vehicles, motor vehicles, AC induction motors, etc.

Inactive Publication Date: 2004-11-03
ALSTOM BELGIUM SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So at least the excitation of this input filter (cutoff of the inverter, fluctuations in the voltage of the pendant wire, etc.) exceeds these standards

Method used

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  • Multiple-voltage power supply for railway vehicle
  • Multiple-voltage power supply for railway vehicle
  • Multiple-voltage power supply for railway vehicle

Examples

Experimental program
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Embodiment Construction

[0071] The basic idea constituting the invention is as follows: it is assumed that the circuit diagram of the power supply circuit of a multi-voltage propulsion chain has to be reconfigured specifically for each supply voltage, and that said power supply circuit is modular and comprises a certain number of basic arms, said One or several of the arms are reused at each given supply voltage for providing the functions that must ideally be performed at said supply voltage. It should be noted that in this case the reused arm is either leftover and unnecessary or already has a defined function at said supply voltage.

[0072] The circuit diagram reconstructed in the case of the preferred embodiment of the present invention is shown in FIG. 1 .

[0073] The voltage is tapped on the suspension wire 1 in AC form (25 kV-50 Hz or 15 kV-16 Hz 2 / 3) or in DC form (3 kV or 1.5 kV).

[0074] The AC current is supplied by the suspension wire 1 to the power transformer. Said transformer comp...

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PUM

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Abstract

The invention concerns an installation constituting a railway propulsion chain, characterized in that it comprises, sequentially arranged, in the power electrical circuit, between a power transformer powered by a catenary and an electric motor of said vehicle, said catenary being capable of supplying a plurality of voltages, alternating or direct, said electrical circuit comprising a plurality of contact switches for selecting a given catenary voltage, at least one of the following elements: a controlled rectifier bridge (A1, A2), preferably a single-phase bridge with forced switching; a substantially reactive input filter (A3), preferably comprising at least a capacitance and/or at least an induction coil; a braking chopper capable of including also a clipping function (B); a multiphase and multilevel static converter (C1, C2, C3), preferably three-phase; electronic components, preferably IGBT power semiconductors for each element, each element belonging to at least an elementary power arm of the modular circuit diagram.

Description

technical field [0001] The present invention relates to a method of powering the propulsion chain of a railway vehicle, preferably a locomotive. [0002] In particular, the invention relates to a power supply method with reconfiguration of the circuit diagram at various suspension wire supply voltages. [0003] The invention also relates to a device for carrying out the method. Background technique [0004] The field of application of the invention relates to the variable speed control of synchronous or asynchronous motors with various supply voltages present on the suspension lines, AC or DC. [0005] Thus, the propulsion chain consists of a certain number of elements intended to convert the voltage of the suspension wires in order to provide the voltage used to control said electric motor. [0006] These propulsion chains consist of at least one converter, inverter or rectifier for converting the voltage present on the suspension wire into a three-phase voltage as close ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L9/30
CPCB60L2200/26B60L9/30
Inventor 阿历克西斯·科拉斯克里斯托弗·德勒克吕泽拉斐尔·马费
Owner ALSTOM BELGIUM SA
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