Fast-Swap Charging: An Improved Operation Mode for Catenary-Free Light Rail Networks

Cheng, L, ACUNA, P, Wei, S, Fletcher, J, Wang, W and Jian, J 2018, 'Fast-Swap Charging: An Improved Operation Mode for Catenary-Free Light Rail Networks', IEEE Transactions on Vehicular Technology, vol. 67, no. 4, pp. 2912-2920.


Document type: Journal Article
Collection: Journal Articles

Title Fast-Swap Charging: An Improved Operation Mode for Catenary-Free Light Rail Networks
Author(s) Cheng, L
ACUNA, P
Wei, S
Fletcher, J
Wang, W
Jian, J
Year 2018
Journal name IEEE Transactions on Vehicular Technology
Volume number 67
Issue number 4
Start page 2912
End page 2920
Total pages 9
Publisher IEEE
Abstract This paper introduces the concept of fast-swap charging (FSC), an operation mode designed to improve the operating cost-efficiency relation in on-board-powered light rail (LR) networks. The main concept is to swap the depleted energy storage units for fresh, pre-charged units in every cycle after the LR vehicle arrives at its terminus. The proposed operation mode allows the empty energy storage components to be charged at low electricity-demand periods, such as at night, so that a cheaper kWh tariff is accessed. Energy efficiency models capable of assessing the energy efficiency are developed as a framework for practical case studies. Finally, a case study illustrating the effects of different operation modes on the selection and optimal sizing of energy storage components, and the energy efficiency of the Zhuhai route, China, is included. The results show that the proposed FSC outperform the counterparts in term of average operating cost per year while obtaining a similar efficiency. © 1967-2012 IEEE.
Subject Information and Computing Sciences not elsewhere classified
Engineering not elsewhere classified
Technology not elsewhere classified
Keyword(s) batteries
charging mode and energy storage
efficiency
Light-rail networks
supercapacitors
DOI - identifier 10.1109/TVT.2017.2780924
Copyright notice © 2017 IEEE.
ISSN 0018-9545
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