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Electric locomotive power supply circuit

A technology for power supply circuits and electric locomotives, applied to electric locomotives, locomotives, motor vehicles, etc., can solve the problems of continuous power supply for passenger trains, etc., and achieve the effect of reducing weight and simplifying design

Inactive Publication Date: 2015-03-25
CRRC DALIAN CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest problem with this scheme is that when the electric locomotive passes through the phase separation area, it cannot continuously supply power to the passenger train

Method used

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  • Electric locomotive power supply circuit
  • Electric locomotive power supply circuit

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Embodiment Construction

[0008] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0009] See attached figure 2 , the electric locomotive train power supply circuit of this embodiment is composed of IGBT elements T1, T2, T3 and T4 to form a four-quadrant converter, and its input terminal is connected to the intermediate DC of the locomotive traction circuit through the input filter circuit formed by inductance L1 and capac...

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Abstract

The invention relates to an electric locomotive power supply circuit. The electric locomotive power supply circuit consists of an inversion circuit, an isolation circuit and a rectifying output circuit, wherein the input end of the inversion circuit is connected to an intermediate direct-current loop of a locomotive traction circuit, when a locomotive passes by a phase splitting area, kinetic energy of the locomotive can be converted to electric energy by an inverter IV1, and the electric energy can be supplied to a locomotive power supply device through the intermediate direct-current loop of the locomotive traction circuit, so that uninterrupted power supply of the passenger locomotive can be realized; moreover, a traction transformer does not need to be independently provided with a power supply winding, so that the design of the traction transformer can be simplified, and the weight of the traction transformer can be effectively reduced.

Description

technical field [0001] The invention relates to a train power supply circuit for an electric locomotive, belonging to the technical field of railway locomotive manufacturing. Background technique [0002] The centralized power supply for locomotives and the decentralized and variable power supply system for passenger cars are a way of power supply for railway trains. Centralized power supply, that is, the locomotive provides DC600V voltage to the train; passenger car decentralized conversion, that is, the converter on each carriage inverts the DC600V voltage and then provides three-phase 380V power supply to the electric equipment in the carriage, so as to meet the requirements of passenger train air conditioning, electric heating The power demand of devices such as appliances. In the prior art, generally, the single-phase AC power provided by the traction transformer of the electric locomotive is rectified and supplied to the passenger train. The AC25kV high voltage is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61C17/00
CPCB61C3/00B60L1/00
Inventor 付莹张彦民佘猷侯强王景琪
Owner CRRC DALIAN CO LTD
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