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Locomotive traction converter

A traction converter and traction inverter technology, applied in the field of converters, can solve the problems of large occupied space and easy to cause electromagnetic interference, and achieve the effect of reducing occupied space and reducing electromagnetic interference.

Inactive Publication Date: 2013-05-29
CRRC YONGJI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a traction converter for locomotives, which is used to solve the problems of large occupied space and easy electromagnetic interference caused by the independent arrangement of traction converters and auxiliary converters in existing AC drive electric locomotives

Method used

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  • Locomotive traction converter
  • Locomotive traction converter

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Embodiment Construction

[0013] figure 1 It is a structural schematic diagram of an embodiment of the locomotive traction converter of the present invention; figure 2 It is the circuit connection schematic diagram of the embodiment of locomotive traction converter of the present invention; figure 1 , figure 2 As shown, the embodiment of the locomotive traction converter of the present invention includes a traction converter cabinet 4, a rectifier 1, an intermediate DC circuit 2 and a traction inverter 3 are fixedly installed in the traction converter cabinet 4, and the output terminal of the rectifier 1 is connected to the The input end of the intermediate DC circuit 2 is electrically connected, the output end of the intermediate DC circuit 2 is electrically connected to the input end of the traction inverter 3, which also includes an auxiliary converter 5, the input end of the auxiliary converter 5 is connected to the intermediate DC The output end of the circuit 2 is electrically connected, and ...

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Abstract

The invention provides a locomotive traction converter which comprises a traction conversion cabinet, wherein a rectifier, a middle direct-current circuit and a traction inverter are fixedly arranged in the traction conversion cabinet, the output end of the rectifier is electrically connected with the input end of the middle direct-current circuit, and the output end of the middle direct-current circuit is electrically connected with the input end of the traction inverter. The locomotive traction converter further comprises an auxiliary converter, wherein the input end of the auxiliary converter is electrically connected with the output end of the middle direct-current circuit, and the auxiliary converter and the traction inverter are connected in parallel. The traction inverter and the auxiliary converter are integrated into the same traction conversion cabinet so that space occupation is reduced. Simultaneously, a circuit connection wire between the middle direct-current circuit and the auxiliary converter is shortened so that electromagnetic interference of external electrical elements on the locomotive traction converter is reduced.

Description

technical field [0001] The invention relates to converter technology, in particular to a locomotive traction converter. Background technique [0002] In the 1980s, AC drive electric locomotives began to be widely used around the world due to their superior performance. After the 1990s, the high-speed locomotives, heavy-duty locomotives and general-purpose passenger and cargo locomotives manufactured by major developed countries have all been AC drive electric locomotives. [0003] Traction converter technology is the core technology of AC drive electric traction. In the existing AC drive electric locomotives, especially in high-power AC drive electric locomotives, traction converters (that is, traction inverters) and auxiliary transformers are installed. converter, and the traction converter and auxiliary converter are placed in two independent converter cabinets, that is, the traction converter is set in the traction converter cabinet, and the auxiliary converter is set in...

Claims

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Application Information

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IPC IPC(8): H02M1/00H02M1/44H05K7/20
Inventor 陈广泰高永军王彬张晋芳唐子辉杨丽辉孙湘漪牛勇马连凤
Owner CRRC YONGJI ELECTRIC CO LTD
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