Traction converter and control, fault processing and carrier phase shifting methods thereof

A traction converter and traction inverter technology, applied in the field of rail vehicle traction conversion, can solve the problems of poor robustness, low failure rate, high failure rate, etc., to reduce loss, low failure rate, and reduce working noise Effect

Inactive Publication Date: 2018-10-23
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology improves on existing designs for vehicles' traction converters that have certain technical benefits such as improved reliability, reduced failures rates, lower costs, increased safety during driving under different road types (high/low), enhanced performance without adding extra components like passive filters or active coolers, etc., while maintaining their effectiveness over longer periods of use.

Problems solved by technology

Technologies described include improving the performance of tractions used in city centers without sacrificing their reliability. One method involves incorporating redundant electrical systems called EMC' s® Power Control Units (PCUs). These units replace lost equipment during peak hours while maintaining operational efficiency. Another approach includes connecting certain types of inductive elements together instead of just half way across them like copper bars. By combining these different sources of power, it becomes possible to achieve greater flexibility than traditional methods. Additionally, the design allows for easy maintenance and replacement of failed devices, reducing downtime and increasing overall fleet size. Overall, these technical features improve the functionality and effectiveness of emergency response mechanisms in urban areas.

Method used

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  • Traction converter and control, fault processing and carrier phase shifting methods thereof
  • Traction converter and control, fault processing and carrier phase shifting methods thereof
  • Traction converter and control, fault processing and carrier phase shifting methods thereof

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Embodiment Construction

[0028] In the following, the present invention will be specifically described through exemplary embodiments. It should be understood, however, that elements, structures and characteristics of one embodiment may be beneficially incorporated in other embodiments without further recitation.

[0029] In the description of the present invention, it should be noted that the terms "first" and "second" are used for description purposes only, and should not be understood as indicating or implying relative importance.

[0030] see image 3 , Figure 4 , an embodiment of the present invention provides a single four-quadrant traction converter, including a first pre-charging circuit 2 and a second pre-charging circuit 3 respectively connected to the secondary side winding of the traction transformer 1, and the The first heavy four-quadrant rectifier module 4 connected in series with the first pre-charging circuit 2, the second heavy four-quadrant rectifier module 5 connected in series with t

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Abstract

The invention relates to a traction converter and control, fault processing and carrier phase shifting methods thereof. The traction converter comprises a first pre-charging loop and a second pre-charging loop that are connected with a secondary-side winding of the traction transformer respectively, a first four-quadrant rectifier module connected in series with the first pre-charging loop, a second four-quadrant rectifier module connected in series with the second pre-charging loop, an intermediate direct-current voltage loop with the input terminal connected with the output terminal of the first four-quadrant rectifier module and the output terminal of the second four-quadrant rectifier module, a first traction inverter module with the input terminal connected with the output terminal ofthe intermediate direct-current voltage loop, a second traction inverter module with the input terminal connected with the output terminal of the intermediate direct-current voltage loop, and an auxiliary inversion system with the input terminal connected with the output terminal of the intermediate direct-current voltage loop. According to the traction converter, the single four-quadrant rectifier module can work and the single traction inverter module can work; and the robustness is high, the fault rate is low, the size is reduced, and the cost is lowered.

Description

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Claims

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Application Information

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Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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