Abstract
During rush hours, catenary voltage drop is a significant issue on the 1,5kV – DC lines. Indeed, when voltage drop occures between two substations, the trains can't accelerate as they should. Among the solutions that could solve such a problem, the development of a new traditionnal substation in the middle of two others, also the integration of wayside Energy Storage Systems (ESS). This paper deals with the development on Energy Storage Systems (ESS) in the SNCF (French Railway Company) railway network. It aims to study the techno-economic interests of such innovations, also to investigate the environmental impact they could have. The assessment is based on the comparison of a traditional railway 1,5kV–DC substation and a battery-based substation.
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