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Vehicle-mounted hybrid energy storage device applied to urban rail transit

A technology of urban rail transit and hybrid energy storage, which is applied in the field of vehicle-mounted hybrid energy storage devices, can solve the problems of less energy storage in supercapacitors and cannot meet the long-term power supply requirements, so as to save time, reduce personnel panic and corresponding times The probability of disasters and the effect of reducing energy consumption of urban rail transit

Inactive Publication Date: 2012-06-06
上海同沪电气科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, supercapacitors have little energy storage and cannot meet the long-term power supply requirements.

Method used

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  • Vehicle-mounted hybrid energy storage device applied to urban rail transit
  • Vehicle-mounted hybrid energy storage device applied to urban rail transit
  • Vehicle-mounted hybrid energy storage device applied to urban rail transit

Examples

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Embodiment

[0033] A vehicle-mounted hybrid energy storage device applied to urban rail transit, including multiple sets of half-bridge DC / DC converters for different conversions, multiple sets of supercapacitors for high-power discharge, and used to control pre-charging and voltage at both ends High and low switching tubes, multi-cell battery series-parallel circuit for long-term discharge and three sets of filter inductors and capacitors for filtering. Multiple sets of half-bridge DC / DC converters for different conversions, in which the input terminals of the high-voltage converters are connected to the power grid, the main traction system and the auxiliary system, and a switch tube is installed to prevent current backflow, and the output terminal and the matching ratio are completed The supercapacitors are connected; the low-voltage half-bridge converter connects supercapacitors of different voltage levels to the battery pack. The switch tube to prevent current backflow is used to phys...

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Abstract

The invention relates to a vehicle-mounted hybrid energy storage device applied to urban rail transit. The vehicle-mounted hybrid energy storage device is connected with a power supply grid and is further connected with a train chief traction system and a train auxiliary system. The vehicle-mounted hybrid energy storage device comprises multiple sets of high-voltage half-bridge direct-current / direct-current converters, multiple sets of low-voltage half-bridge direct-current / direct-current converters, multiple sets of super capacitors for high-power discharge, multiple switching tubes for controlling pre-charge and terminal voltage, a storage battery pack which is formed by multiple storage batteries in serial-parallel connection and used for long-time discharge, and multiple sets of filter circuits for filtration. Compared with the prior art, the vehicle-mounted hybrid energy storage device disclosed by the invention can carry out self-traction by using the reserved power of the hybrid energy storage device when the power supply grid of vehicles is in an outage fault, so as to move the vehicles to a safe district to avoid a disaster. The vehicle-mounted hybrid energy storage device not only is small in size and light in weight, but also has the advantages of saving energy, reducing consumption, reducing energy consumption of the urban rail transit, improving economic benefits and the like.

Description

technical field [0001] The invention relates to the energy management technology of a hybrid energy storage system, in particular to a vehicle-mounted hybrid energy storage device applied to urban rail transit. Background technique [0002] During the operation of urban rail transit, the interruption of train power supply will cause the entire line to be out of service. For some urban rail lines operating in tunnels, the paralysis of the power supply system may even induce secondary disasters, resulting in more serious consequences. If the third rail power supply used by the depot to enter and exit the garage is used, the third rail needs to be laid, which increases the corresponding cost and lowers the safety. Therefore, it is generally adopted to increase the energy storage element on the train to solve the power supply interruption problem. At present, the energy storage components used in urban rail transit mainly include batteries, supercapacitors and flywheel batterie...

Claims

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Application Information

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IPC IPC(8): H02J15/00H02J7/02B60L11/00H02J9/06
CPCY02T10/7022Y02T10/70
Inventor 姚勇涛张逸成袁登科刘君君顾帅陈胜沈玉琢韦莉梁海泉沈小军周云锋湛凌威储剑灵
Owner 上海同沪电气科技有限公司
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