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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 110
PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE
Edited by: J. Pombo
Paper 190

The Potential of Hybrid Energy Storage Systems for Railway Vehicle Applications

S. Kaimer and S. Sigle

Department of Vehicle Energy Concepts, Institute of Vehicle Concepts, German Aerospace Center, Berlin, Germany

Full Bibliographic Reference for this paper
S. Kaimer, S. Sigle, "The Potential of Hybrid Energy Storage Systems for Railway Vehicle Applications", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 190, 2016. doi:10.4203/ccp.110.190
Keywords: hybrid energy storage system, hybridization, alternative propulsion system, energy efficiency, HESS, NGT LINK.

Summary
This paper evaluates the potential of hybrid energy storage systems (HESS) for heavy railways. A HESS describes the combination of at least two different types of energy storage with diverging characteristics in an integrated energy storage system. Thus, several advantages (e.g. compact design, longer lifetime and higher efficiency) can be achieved, compared to single type energy storage. In the first part of the paper, the demand for electrical energy storage systems in railway applications is highlighted and the general characteristics of hybrid energy storage systems are discussed. Then the potential of a HESS is analysed, using the Next Generation Train feeder train concept "NGT LINK" as an application example. Finally, the boundary conditions for a reasonable usage of a HESS are derived, considering different load profiles.

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