'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Abstract
With the continuous expansion of the railway power
systems, the integration of high speed locomotives and the need to
increase the overhead catenary line power capacity, the main
shortcomings of the conventional railway feeding system are
becoming more evident. In order to overcome these drawbacks
and to contribute to the technological evolution with innovative
and electrically more efficient systems, several solutions have been
proposed and implemented. In this context, this paper briefly
presents a study of different railway power systems, highlighting
emerging concepts, such as regenerative braking, energy storage
systems, the inclusion of renewable energy sources, bidirectional
power flow and wireless power transfer. Some of these concepts
can be implemented in short to medium term, or in the long term.
Following these concepts, an overview of the power electronics
challenges for the implementation of these emerging concepts is
presented and discussed.This work has been supported by FCT –Fundação para a Ciência e Tecnologia within the R&D Units Project Scope: UIDB/00319/2020. This work has been supported by the FCT Project QUALITY4POWER PTDC/EEI-EEE/28813/2017. Mr. Luis A. M. Barros is supported by the doctoral scholarship PD/BD/143006/2018 granted by the Portuguese FCT foundation. Mr. Mohamed Tanta was supported by FCT PhD grant with a reference PD/BD/127815/2016