Third rail power supply device for rail vehicle and rail vehicle system
A technology for rail vehicles and power supply devices, applied in the field of rail transit, can solve problems such as the adverse effects of anti-reverse diode circuits, and achieve the effects of expanding the range of options, increasing universality, and reducing costs
Active Publication Date: 2019-09-27
CRRC DALIAN R & D CO LTD
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Problems solved by technology
[0005] The invention provides a third-rail power supply device and a rail vehicle system of a rail vehicle to solve the problem that the reverse voltage breakdown of the anti-reverse diode has an adverse effect on the circuit
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[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0042] The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and not necessarily Describe a particular order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can, for example, be practiced in sequences other than tho...
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The invention provides a third rail power supply device for rail vehicles and a rail vehicle system. The third rail power supply device for the rail vehicles comprises N first power units and an auxiliary power supply bus connecting the first power units, wherein the first power units are connected to contact rail main lines; the power units comprise anti-reverse diodes, snubber circuits and firstinverters; each anti-reverse diode is arranged between the corresponding contact rail main line and the input side of the corresponding first inverter; the contact rail main lines are arranged on thesame sides as positive electrodes of the anti-reverse diodes; two ends of each anti-reverse diode are in parallel connection with the corresponding snubber circuit; the auxiliary power bus is connected between a negative electrode of each anti-reverse diode and the corresponding first inverter; and the snubber circuits are used for absorbing reverse voltage input into the negative electrodes of the anti-reverse diodes when the contact rail main lines are not supplied with power and releasing the absorbed electric energy when the contact rail main lines are supplied with power. The third railpower supply device for the rail vehicles and the rail vehicle system avoid the reverse voltage breakdown of the anti-reverse diodes.
Description
technical field [0001] The invention relates to the field of rail transportation, in particular to a third-rail power supply device of a rail vehicle and a rail vehicle system. Background technique [0002] The third rail is also called the power supply rail, which refers to a track installed next to the urban rail (subway, light rail, etc.) line and used for power supply alone. It works with the current collector (collector shoe) to provide power support for the equipment on the rail vehicle. [0003] In the existing related technology, the main line of the contact rail supplies the power supply of the third rail to each power unit, and then the power unit supplies electricity to the equipment, and the power units are connected through the auxiliary power supply bus. After the auxiliary power supply bus enters other power units, it will affect other power units. An anti-reverse diode can be installed in the power unit, and the negative pole of the anti-reverse diode can be...
Claims
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IPC IPC(8): B60M1/30
Inventor 姜静王晓鹏牟岩韩红彬程宝曹建平
Owner CRRC DALIAN R & D CO LTD