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Energy management strategy of hybrid power bullet train set traction and transmission system

A technology of traction drive and hybrid power, applied in the field of energy management, to achieve the best fuel economy, maximum energy recycling, and optimal acceleration performance

Active Publication Date: 2016-08-17
BEIJING JIAOTONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology uses a power pack (diesel generator set) and an energy storage device, and its core and key is the energy management and control of the hybrid system, which is rarely reported in the prior art

Method used

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  • Energy management strategy of hybrid power bullet train set traction and transmission system
  • Energy management strategy of hybrid power bullet train set traction and transmission system
  • Energy management strategy of hybrid power bullet train set traction and transmission system

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Embodiment Construction

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] Such as figure 1 As shown, the traction drive system of the hybrid electric train set of the present invention includes:

[0039] Four-quadrant rectifier, connected to catenary through traction transformer,

[0040] Power pack (diesel generator set), connected with four-quadrant rectifier,

[0041] DC link, connected to a four-quadrant rectifier,

[0042] The energy storage device is connected to the DC link through a bidirectional DC / DC converter. The energy storage device is a battery pack, a super capacitor or a flywheel.

[0043] The traction motor is connected to the DC link through the traction inverter.

[0044] Auxiliary converters may also be included (auxiliary converters are not shown).

[0045] in:

[0046] The catenary is connected to the four-quadrant rectifier through the pantograph through the traction transformer for rectificatio...

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Abstract

The invention relates to an energy management strategy of a hybrid power bullet train set traction and transmission system. The energy management strategy comprises the following steps of: step (1), estimating train power demand; determining an operation path condition and an operation working condition of a train and calculating a real-time power instruction of the traction and transmission system; step (2), obtaining the state of each subsystem through communication; obtaining the state of each subsystem of the traction and transmission system through hard wire communication and / or RS485 communication and / or CAN (Controller Area Network) bus communication, wherein the state at least comprises a charge state of an energy storage device and maximum available power of a power pack; and step (3), controlling the energy flow between the subsystems according to the operation path condition of the train. According to the energy management strategy, a bullet train set can be normally operated under two operation conditions of having a contact network or not; on the basis, the optimal acceleration performance, the optimal fuel economy performance and the maximum energy cyclic utilization of the bullet train set can also be guaranteed.

Description

technical field [0001] The invention relates to the energy management of the traction drive system of the multiple train set, in particular to the energy management strategy of the traction drive system of the hybrid multiple train set. Background technique [0002] In the traction drive system of the hybrid electric multiple unit, by using the hybrid system composed of the energy storage device, the power pack (diesel generator set) and the new traction converter, the cross-line operation between the electrified road section and the non-electrified road section can be realized, and at the same time, it can reduce the Reduce fuel consumption and improve operating economy. [0003] The application of hybrid power system is a development direction of new EMUs in the future, and it has positive significance for the extension of railway network. This technology uses a power pack (diesel generator set) and an energy storage device, and its core and key is the energy management a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61C7/04
CPCB61C7/04Y02T30/00
Inventor 刁利军金哲铭于薇薇刘志刚赵明花李军王成涛李雪飞韩伟况阳何榕佳尹少博漆良波
Owner BEIJING JIAOTONG UNIV
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