Research on coordinated control method of hybrid energy storage systems connected traction power supply system based on PFTD

HUANG Jun

doi:10.13890/j.issn.1000-128X.2024.01.123

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Research on coordinated control method of hybrid energy storage systems connected traction power supply system based on PFTD

Railway Electrification | 更新时间：2024-08-02

- Research on coordinated control method of hybrid energy storage systems connected traction power supply system based on PFTD
- Electric Drive for Locomotives Issue 1, Pages: 166-173(2024)
- 作者机构：
  
  中铁第四勘察设计院集团有限公司，湖北武汉 430063
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2024.01.123
  CLC： TM922.3;U223.6
- Published：10 January 2024，
  
  Received：27 July 2023，
  
  Revised：25 November 2023，
- 稿件说明：
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黄军. 基于潮流转移装置的混合储能接入牵引供电系统控制策略研究[J]. 机车电传动, 2024(1): 166-173.

HUANG Jun. Research on coordinated control method of hybrid energy storage systems connected traction power supply system based on PTFD[J]. Electric drive for locomotives,2024(1): 166-173.
黄军. 基于潮流转移装置的混合储能接入牵引供电系统控制策略研究[J]. 机车电传动, 2024(1): 166-173. DOI：10.13890/j.issn.1000-128X.2024.01.123.

HUANG Jun. Research on coordinated control method of hybrid energy storage systems connected traction power supply system based on PTFD[J]. Electric drive for locomotives,2024(1): 166-173. DOI：10.13890/j.issn.1000-128X.2024.01.123.

摘要

采用单相工频交流制式的电气化铁路具有无污染、运输效率高的优点，但在现有的牵引供电系统中，负序和再生制动能量利用的问题较为突出。因此，文章提出了一种集成混合储能系统的潮流转移拓扑。文章分析了集成混合储能的潮流转移装置的拓扑结构，研究了削峰、填谷、再生制动和同相运行模式及其能量管理策略；为减少系统损耗，进一步提高系统再生制动能量利用率和削峰填谷的控制精度，文章提出了一种协调控制策略，并采用无源控制的非线性电流控制器提升变流器控制响应速度。仿真结果表明，该系统可以充分利用牵引供电系统的再生制动能量，提高系统中能量流动的灵活性，并且解决了牵引供电系统中的负序问题。

Abstract

Electrified railways using single-phase power-frequency AC systems have the advantages of pollution-free operation and high transportation efficiency. However

the current traction power supply systems face prominent challenges related to negative sequence and inefficient utilization of regenerative braking energy. Therefore

this paper proposed a power flow transfer topology for integrated hybrid energy storage systems. The analysis focused on the topology structure of the power flow transfer device (PFTD) for integrated hybrid energy storage

and delved into peak shaving

valley filling

regenerative braking

and in-phase operation modes

along with corresponding energy management strategies. Moreover

a coordinated control strategy was proposed

to reduce system losses

as well as further improve the utilization of regenerative braking energy and the control accuracy of peak shaving and valley filling. Additionally

a passive nonlinear current controller was introduced to improve the control response speed of converters. Finally

the simulation results indicate that the proposed system fully utilize the regenerative braking energy of the traction power supply system

improve the flexibility of energy flow in the system

and solved concerns related to negative sequence in the traction power supply system.

关键词

电气化铁路负序再生制动能量混合储能系统协调控制仿真

Keywords

electrified railwaynegative sequenceregenerative braking energyhybrid energy storage systemcoordinated controlsimulation

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