Motor train unit traction system powered up by overhead contact system and power pack in combined mode

A hybrid power supply and traction system technology, applied in the direction of engine-driven traction, AC induction motor traction, electric traction, etc., can solve the problems that the EMU cannot meet the operation requirements, and cannot perform self-rescue in time, so as to reduce power and volume , reduce design cost, and achieve the best power density

Active Publication Date: 2013-11-27
CHINA RAILWAYS CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All EMUs with single electric traction cannot meet the requirements of running on non-electrified railways, and cannot

Method used

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  • Motor train unit traction system powered up by overhead contact system and power pack in combined mode
  • Motor train unit traction system powered up by overhead contact system and power pack in combined mode
  • Motor train unit traction system powered up by overhead contact system and power pack in combined mode

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Embodiment Construction

[0018] refer to figure 1 , the embodiment of the present invention mainly includes a traction transformer, a power pack, a traction converter, and a traction motor. The converter is connected to the traction motor. The function of the traction transformer is to step down the single-phase network voltage of the AC catenary as the input voltage of the traction converter. The traction converter then drives the traction motor to realize the traction of the EMU. The unit is composed of an internal combustion power pack, and the three-phase output of the generator is directly connected with the traction converter.

[0019] refer to figure 2 , image 3 , 1. Traction transformer interface 2. Power pack interface 3. Traction motor interface 4. First pre-charging device 5. Four-quadrant rectifier 6. Intermediate DC link 7. Traction inverter 8. Auxiliary converter interface 9. Overvoltage Suppression circuit 10. Second pre-charge means

[0020] The traction transformer interface 1 i...

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PUM

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Abstract

A motor train unit traction system powered up by a overhead contact system and a power pack in a combined mode is characterized by mainly comprising a traction transformer, the power pack, a traction converter, a traction motor and a braking resistor, wherein the overhead contact system is connected with a primary side of the traction transformer through a pantograph, two secondary side windings of the traction transformer are directly connected with the traction converter, the traction converter is connected with the traction motor, a diesel engine and a power generator form the power pack, and three-phase output of the power generator is directly connected with the traction converter. The motor train unit traction system powered up by the overhead contact system and the power pack in the combined mode can achieve overline operation and can meet different conveying requirements in different environments. At a non-electric railway section, a power pack power supplying mode is adopted, and normal operation under the condition without the overhead contact system is achieved. Due to the adoption of two sets of power systems, a motor train unit not only has the operating capacity at the non-electric railway section, but also has the functions of emergency rescue and war preparedness in special rainy or snowy weather or when the overhead contact system is damaged.

Description

technical field [0001] The invention relates to a motor train traction system, in particular to a motor train electric traction system in which catenary and a power pack are mixed to supply power. Background technique [0002] The traction system is the core of the transmission system of the EMU, and it shoulders the task of providing driving power for the train. The traditional EMU traction system mainly adopts catenary power supply mode for single electric traction, which can only run on electrified railways, or adopts single thermal power source traction and runs on non-electrified railways. According to my country's railway planning, by the end of 2012, my country's electrified railways accounted for 53% of the country's railway lines; according to the "Medium and Long-Term Railway Network Planning", it is estimated that by 2020, electrified railways will account for 60% of the country's railway lines, and non-electrified railways will still a large proportion for a long...

Claims

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Application Information

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IPC IPC(8): B60L9/00B60L11/02B60L50/10
CPCY02T10/7241B60L3/0023B60L7/06B60L9/28B60L15/007B60L2200/26B60L2210/30B60L2210/40B60L2240/527B60L2240/529B60L2240/667B60L50/13Y02T10/72Y02T90/16
Inventor 赵明花李军王成涛荀玉涛李雪飞韩伟况阳哈大雷解枫周勇志马昭钰翟黎渊刘俊明万争田伟翟丽佳王颖超蒋英智张金龙金鑫
Owner CHINA RAILWAYS CORPORATION
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