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Railway traffic locomotive braking energy recovery device and method

An energy recovery device and braking energy recovery technology, applied in the direction of motor vehicles, electric vehicles, railway vehicles, etc., can solve the problems of high manufacturing cost, harmonic mains grid impact, complex technology, etc., to improve power quality, reduce Impact and harmonic effects, strong anti-interference ability

Inactive Publication Date: 2017-08-11
SHENZHEN HONGPENG ENERGY TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem of harmonics and impact on the mains grid makes it difficult for grid companies to solve; energy storage can also be done by using flywheels and supercapacitors, but due to their high manufacturing costs and relatively complex technologies, they have not been commercialized.

Method used

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  • Railway traffic locomotive braking energy recovery device and method
  • Railway traffic locomotive braking energy recovery device and method
  • Railway traffic locomotive braking energy recovery device and method

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Embodiment Construction

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] see Figure 1-4 , the present invention provides a technical solution: a rail transit locomotive braking energy recovery device, the braking energy recovery device includes a monitoring device 1, a BMS battery management device 2, a battery pack 3 and a DC chopper 4, the BMS The battery management device 2 is respectively connected to the battery pack 3 and the monitoring device 1, the battery pack 3 and the monitoring device 1 are respectively connecte...

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Abstract

The invention discloses a railway traffic locomotive braking energy recovery device and method. The braking energy recovery device comprises a monitoring device, a battery management system (BMS) device, a storage battery pack and a DC chopper. The BMS device is connected with the storage battery pack and the monitoring device. The storage battery pack and the monitoring device are connected with the DC chopper. The monitoring device and the DC chopper are connected with an overhead line system. According to the railway traffic locomotive braking energy recovery device and method, the structural design is novel, and the advantages of fast, efficient and large-capacity electric energy storage and absorption and high antijamming capability are achieved; on the one hand, braking of a locomotive does not cause excessive voltage boosting of a power grid; and on the other hand, electric energy can be provided for an outbound locomotive, and discharging of energy storage batteries can keep the voltage balance of the overhead line system especially when the number of trains is increased in morning and evening rush hours.

Description

technical field [0001] The invention relates to the technical field of locomotive braking energy recovery, in particular to a braking energy recovery device and method for rail transit locomotives. Background technique [0002] When the locomotive enters the station and brakes, its motor will reverse the power generation to brake the vehicle and continue to run. During this process, the voltage of the catenary connected to the locomotive will increase, even exceeding the set upper limit. Therefore, in order to ensure the grid voltage control Within a certain safety range, when the catenary voltage rises without affecting the power grid, the rail transit system usually uses resistance energy consumption, super capacitor absorption, or energy feedback to the grid to absorb electric energy, so that the grid voltage can be maintained at this specified value. within the voltage range. In these methods, the absorbed electric energy cannot be stored and is limited by use, or the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60L9/00H02J3/32
CPCB60L7/10B60L9/00B60L2200/26H02J3/32
Inventor 徐亚平
Owner SHENZHEN HONGPENG ENERGY TECH CO LTD
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