Power flow simulation of DC railway power supply systems with regenerative braking

Fan, Fulin and Stewart, Brian G.; (2020) Power flow simulation of DC railway power supply systems with regenerative braking. In: 2020 IEEE 20th Mediterranean Electrotechnical Conference ( MELECON). Mediterranean Electrotechnical Conference ( MELECON) . IEEE, ITA, pp. 87-92. ISBN 978-1-7281-5200-4 (https://doi.org/10.1109/MELECON48756.2020.9140462)

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Abstract

The energy efficiency of a railway electrification system can be improved by the recovery of regenerative braking energy which is converted from the mechanical energy of braking trains. In a direct current (DC) railway power supply system, the regenerated energy which would otherwise be dissipated as heat in braking resistors may be consumed by surrounding accelerating trains, stored by energy storage systems, or fed back to upstream alternative current (AC) sides via reversible substations (RSS). It is necessary to evaluate the benefits related to energy savings achieved by the installation of RSS due to the high cost of initial investment. This paper models DC railway power supply systems in Simulink to simulate power flows within the systems in different scenarios with or without the deployment of RSS. Pantograph voltages of trains and power exchange between AC and DC sides are analysed to illustrate the effectiveness of the developed models and the limits on the braking energy recovery.

  • Item type:Book Section
    ID code:71741
    Dates:
    Date
    Event
    15 July 2020
    Published
    4 March 2020
    Accepted
    Notes:© 2020 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Subjects:Technology > Electrical engineering. Electronics Nuclear engineering
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:11 Mar 2020 11:22
    Last modified:18 Apr 2024 00:07
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/71741
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