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Emergency power supply system for motor train unit and control method thereof

A technology of power supply system and control method, which is applied in the direction of power network operating system integration, electric vehicles, emergency power supply arrangements, etc., can solve the problems of poor power supply redundancy, etc., and achieve the effects of improving reliability, convenient use, and improving operating range

Pending Publication Date: 2020-10-13
CRRC YONGJI ELECTRIC CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention solves the problem of poor power supply redundancy of the traction system of the electric train set, and provides an emergency power supply system for the train set and its control method

Method used

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  • Emergency power supply system for motor train unit and control method thereof
  • Emergency power supply system for motor train unit and control method thereof

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Embodiment Construction

[0015] The emergency power supply system for EMUs is installed on a vehicle that can run freely on the track. It has a car body, driver's cab, bogie, etc., and can operate independently. Emergency power traction systems such as figure 1 shown. Emergency power supply traction system consists of diesel power generation system, rectifier, intermediate DC bus, intermediate bus link, traction inverter, traction motor, auxiliary converter, auxiliary load and DC energy storage.

[0016] The diesel power generation system outputs three-phase AC power to the rectifier 11 by burning diesel oil.

[0017] The rectifier 11 converts the three-phase alternating current into direct current, and the rectifier 11 can be a 12-pulse rectifier or a 24-pulse rectifier. The output of the rectifier is connected to the intermediate DC bus udc2 through the switch K31.

[0018] The intermediate bus link 11 is composed of a supporting capacitor and a chopping unit. The intermediate bus link is mainly ...

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Abstract

The invention relates to a standby power supply system for a motor train unit, in particular to an emergency power supply system for the motor train unit and a control method thereof. The problem thatthe power supply redundancy of an electric motor train unit traction system is poor is solved. The emergency power supply system for the motor train unit comprises a section of vehicle connected to an existing electric motor train unit. A diesel power generation system is arranged in a vehicle, alternating current output by the diesel power generation system is converted into direct current through a rectifier, output positive and negative electrodes of the rectifier are connected with an intermediate direct-current bus, and the intermediate direct-current bus is connected with a direct-current bus of an existing motor train unit traction system through a switch. The intermediate direct-current bus is also connected with a direct-current energy storage system, the direct-current energy storage system comprises a direct-current energy storage bus, and the direct-current energy storage bus is connected in parallel with a plurality of energy storage units. The intermediate direct currentbus is further connected with an intermediate bus link, a traction inverter and an auxiliary converter. The traction inverter supplies power to a traction motor, and the traction motor serves as a power source to be used for driving a vehicle.

Description

technical field [0001] The invention relates to a standby power supply system for a train set, in particular to an emergency power supply system for a train set and a control method thereof. Background technique [0002] EMUs have greatly facilitated people's lives. At present, EMUs are mainly powered by pantograph-catenary 25kV, but if the power supply is lost, the EMUs themselves will not be able to operate. Power supply failures caused by natural disasters such as heavy snow in winter have caused EMUs to fail to operate many times. Therefore, it is necessary to improve the power supply redundancy of the EMU traction system and reduce the risk. [0003] At present, in order to improve the power supply redundancy of the electric multiple unit traction system and reduce its dependence on power supply, there have been related researches on the internal combustion multiple unit. The internal combustion EMU is adopted, and the power supply method is generated by a diesel gene...

Claims

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Application Information

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IPC IPC(8): H02J9/08H02J9/06B60L9/00
CPCH02J9/08H02J9/061B60L9/00Y02B70/30Y02T10/72Y04S20/20
Inventor 张瑞峰于森林丁志勇葸代其詹哲军贺志学梁海刚
Owner CRRC YONGJI ELECTRIC CO LTD
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