Motor train unit auxiliary power supply system and energy control method
A technology for power supply systems and EMUs, applied in motor vehicles, electric vehicles, and adjusting electric variables, can solve problems such as design and manufacturing difficulties, poor economy and practicability, low utilization rate and high-power equipment, etc. Power supply conditions, improving the utilization rate of energy storage equipment and new energy penetration rate of trains, and reducing the effect of insulation design pressure
Pending Publication Date: 2022-05-13
CHINA ACADEMY OF RAILWAY SCI CORP LTD +3
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Problems solved by technology
The first type of solution, because the DC bus voltage of the traction converter is relatively high, the requirements for the insulation capacity and current carrying capacity of the energy storage device are very strict, resulting in difficulties in design and manufacture; the second type of solution will give Trains add high-power equipment with extremely low utilization rate in daily operation, which is poor in economy and practicability
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[0072] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some, not all, embodiments of the application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0073] For an example, see figure 1 , in order to enable the EMU to maintain a high auxiliary power supply level no matter under normal working conditions or emergency working conditions, the application provides an auxiliary power supply system for EMUs, including: a controller and a load power supply module; the load power supply module is connected The controller is connected to the high-voltage DC bus of the vehicle traction system through the medium-voltage DC bus; the load power supply modu...
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The invention provides a motor train unit auxiliary power supply system and an energy control method. The system comprises a controller and a load power supply module. The load power supply module is connected with the controller and is connected to a high-voltage direct-current bus of a vehicle traction system through a medium-voltage direct-current bus; and the load power supply module obtains electric energy from the high-voltage direct-current bus and stores the electric energy or supplies power to a load under the control of the controller. The auxiliary power supply system of the motor train unit can reliably supply power to the vehicle-mounted equipment under the normal working condition or the working condition that the high-voltage direct-current bus loses power.
Description
technical field [0001] The application relates to the technical field of rail vehicle power supply, in particular to an auxiliary power supply system and an energy control method for an EMU. Background technique [0002] When the EMU has a catenary power failure or vehicle flow failure during operation, it is necessary to wait for the rescue of the shunting locomotive in place. During this period of time, the batteries on the train can only supply power to loads such as emergency ventilation equipment and emergency lighting equipment, resulting in a significant decline in passenger experience. Therefore, an auxiliary power supply scheme is urgently needed. [0003] With the continuous deepening of the carbon neutral strategy, the production and manufacturing technology of new energy equipment has become increasingly mature, and its capacity, reliability and safety have gradually met the needs of vehicle power supply. At present, auxiliary power supply schemes based on ener...
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IPC IPC(8): H02J1/10H02J7/34H02J7/00H02J9/06H02M3/158H02M3/335B60L1/00
CPCH02J1/10H02J7/34H02J7/0063H02J9/061H02M3/158H02M3/1582H02M3/33576B60L1/00B60L2200/26H02J2207/20
Inventor 张捷频刘伟志马颖涛夏石冲朱雨桐李水昌王哲王晓帆蒋威邱腾飞殷振环唐蕾邱羽张波杨伟君曹宏发赵红卫康晶辉
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD