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An EMU traction system with catenary and power pack hybrid power supply

A hybrid power supply and traction system technology, which is applied in the directions of engine-driven traction, AC induction motor traction, electric traction, etc., can solve the problems of inability to implement self-rescue in time, and the inability of EMUs to meet the operation requirements, and reduce power and volume. , the effect of reducing the design cost and the best power density

Active Publication Date: 2015-09-30
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 perform self-rescue in time when the electrified section fails or the high-voltage system of the vehicle itself fails

Method used

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  • An EMU traction system with catenary and power pack hybrid power supply
  • An EMU traction system with catenary and power pack hybrid power supply
  • An EMU traction system with catenary and power pack hybrid power supply

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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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Abstract

Disclosed is a traction system for a motor train unit hybridly powered by an overhead contact system and a power pack, which system comprises a traction transformer, a power pack, a traction convertor, a traction motor, a brake resistor, etc., wherein a primary winding of a traction transformer is connected to the overhead contact system via a pantograph; two secondary windings of the traction transformer are directly connected to the traction convertor; the traction convertor is connected to the traction motor; and a diesel engine and a generator constitute the power pack, and three phase outputs of the generator are directly connected to the traction convertor. The system can operate both on an electrified railway and a non-electrified railway. In a non-electrified section of railway, the mode of power supply of a power pack is adopted, thereby achieving the normal operation in the operating condition of the overhead contact system. The motor train unit has the functions of emergency rescue and combat readiness in special rainy and snowy weathers or in the condition where 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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Patent Type & Authority Patents(China)
IPC IPC(8): B60L9/00B60L11/02B60L50/10
CPCB60L2200/26B60L2210/30B60L11/08B60L2210/40Y02T10/7241B60L3/0023B60L2240/667B60L7/06B60L2240/527B60L9/28B60L2240/529B60L15/007B60L50/13Y02T10/72Y02T90/16
Inventor 赵明花李军
Owner CHINA RAILWAYS CORPORATION
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