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Analysis of positioning of wayside charging stations for hybrid locomotive consists in heavy haul train operations
Railway Engineering Science Pub Date : 2021-07-25 , DOI: 10.1007/s40534-021-00240-3
Shah Ahmad 1 , Maksym Spiryagin 1 , Colin Cole 1 , Qing Wu 1 , Peter Wolfs 1 , Chris Bosomworth 1
Affiliation  

Hybrid locomotive concepts have been considered as a step towards converting the railway industry into a green transport mode. One of the challenges in integrating a hybrid locomotive in the train consist is that the battery pack in the locomotive needs to be recharged during a long-haul trip which requires stopping of the train. A typical battery pack requires about 1 h to recharge which is unacceptable. With the improvement in the charging system, it is now possible that the same capacity battery pack could be recharged in 10–12 min which can be a competitive option for the railway companies. This paper proposes a method based on simulation to evaluate the positioning of charging stations on a train network. A typical example of a heavy haul train operation hauled by diesel-electric and hybrid locomotives is used to demonstrate the method by using simulation softwares. The result of the simulation study show that the method developed in this paper can be used to evaluate the state of charge (SoC) status of a hybrid locomotive along the track. It is also shown that the SoC status obtained by the simulation method can be further used to assess the positions of charging stations along the track at the design stage.



中文翻译:

重载列车运行中混合动力机车路边充电站定位分析

混合动力机车概念被认为是将铁路行业转变为绿色运输模式的一步。将混合动力机车集成到列车编组中的挑战之一是在需要停止列车的长途旅行期间需要对机车中的电池组进行充电。典型的电池组需要大约 1 小时才能充电,这是不可接受的。随着充电系统的改进,现在可以在 10-12 分钟内为相同容量的电池组充电,这对铁路公司来说是一个有竞争力的选择。本文提出了一种基于仿真的方法来评估充电站在列车网络上的定位。以柴电混合动力机车牵引的重载列车运行的典型实例为例,通过仿真软件对该方法进行了论证。仿真研究结果表明,本文开发的方法可用于评估混合动力机车沿轨道的荷电状态(SoC)状态。还表明,通过仿真方法获得的 SoC 状态可进一步用于评估设计阶段充电站沿轨道的位置。

更新日期:2021-07-25
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