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Hybrid-power CRH (China Railway High-speed) traction converter suitable for multiple power-supply modes

A traction converter and hybrid technology, applied in the direction of converting AC power input to AC power output, electrical components, output power conversion devices, etc., can solve the problem that the traction converter of the EMU cannot run on non-electrified lines, etc. To achieve the effect of ensuring security and stability

Inactive Publication Date: 2013-11-20
BEIJING QIANSIYU ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a hybrid EMU traction converter applicable to multiple power supply modes, which is used to solve the technical defect that the EMU traction converter in the prior art cannot operate on non-electrified lines

Method used

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  • Hybrid-power CRH (China Railway High-speed) traction converter suitable for multiple power-supply modes
  • Hybrid-power CRH (China Railway High-speed) traction converter suitable for multiple power-supply modes

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Embodiment Construction

[0028] refer to figure 1 and 2 , figure 1 Schematic diagram of the structure of the EMU traction converter provided by the embodiment of the present invention; figure 2 The schematic diagram of the main circuit of the EMU traction converter provided by the embodiment of the present invention.

[0029] Such as figure 1 and 2 As shown, the EMU traction converter provided in this embodiment includes a traction transformer interface 1, a power pack interface 2, an energy storage device interface 3, a first pre-charging device 41, a second pre-charging device 42, a rectifier 5, a DC link 6 and traction inverter 7.

[0030] The traction transformer interface 1 is connected to the input end of the rectifier 5, and the traction transformer interface 1 is used for stepping down the single-phase grid voltage of the catenary. The power pack interface 2 is connected to the input end of the rectifier 5, the DC link 6 is connected in parallel to the DC bus of the output end of the re...

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Abstract

The invention provides a hybrid-power CRH traction converter suitable for multiple power-supply modes. The traction converter comprises a traction converter interface, a power pack interface, a first pre-charge device, a second pre-charge device, a rectifier, a dc link and a traction converter body, wherein the traction converter interface is connected with the input end of the rectifier, the power pack interface is connected with the input end of the rectifier, the dc link is connected with a dc bus of the output end of the rectifier in parallel, the output end of the rectifier is connected with the output end of the traction converter, and the output end of the traction inverter is used for connecting with a CRH traction motor; and the first pre-charge device arranged in a circuit between a secondary side of the traction converter and the rectifier, and the second pre-charge device is arranged in a circuit between the power pack interface and the rectifier. The hybrid-power CRH traction converter can be used in both electrified lines and non-electrified lines, and self rescue of the traction converter can be realized via power provided by a power pack and an energy storage device.

Description

technical field [0001] The invention relates to the traction technology of railway vehicles, in particular to a traction converter for hybrid electric multiple trains applicable to multiple power supply modes. Background technique [0002] At present, the railway network mainly includes electrified railways and non-electrified railways. Electrified railways use electric locomotives for traction. Traction substations are set up along the railway, and catenary is erected along the railway. Non-electrified railways use diesel locomotives to power rolling stock. [0003] The existing EMU has a traction converter, which is the core of the transmission system of the EMU, and is used to supply power to the traction motor of the EMU, and provide driving power for the EMU through the traction motor. The traction converter of the EMU is a single catenary power supply mode. When the catenary fails on the electrified section, self-rescue cannot be implemented in time, and the EMU cann...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/46
Inventor 刁利军刘志刚张钢王磊牟富强董侃赵明花李军王成涛李雪飞韩伟阮白水杜会卿邱瑞昌徐春梅何文辉金哲铭路亮
Owner BEIJING QIANSIYU ELECTRIC
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