Reversible substation modelling with regenerative braking in DC traction power supply systems

Fan, Fulin and Li, Yafang and Ziani, Smail and Stewart, Brian G.; (2021) Reversible substation modelling with regenerative braking in DC traction power supply systems. In: 2021 IEEE Texas Power and Energy Conference (TPEC). IEEE, USA. ISBN 9781728186122 (https://doi.org/10.1109/TPEC51183.2021.9384922)

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Abstract

Compared to traditional unidirectional substations, a reversible substation (RSS) permitting bidirectional power flows is an efficient approach to recovering the braking energy of trains and increasing the energy efficiency of DC traction power supply systems (TPSS). This paper develops two models to reflect the role of an RSS under high and low fidelities, focusing on the converter-and TPSS-level simulation respectively. A particular RSS topology consisting of a 12-pulse diode rectifier and an antiparallel active neutral point clamped voltage source inverter (VSI) is replicated in a high-fidelity model where the VSI is controlled to maintain a constant DC voltage in the braking mode. To reduce computation burden, a low-fidelity model simplifies the rectifier into a diode in series with a controlled voltage source (CVS) that reflects its nonlinear output characteristics, and connects a DC voltage source in parallel with the CVS branch, permitting the delivery of braking power to the RSS under the constant DC voltage control. The two models are tested based on a simplified 1.5 kV TPSS and discussed alongside the consistency in the simulation of the power exchange and voltage transients at the RSS in traction and braking modes.

  • Item type:Book Section
    ID code:75072
    Dates:
    Date
    Event
    2 April 2021
    Published
    8 January 2021
    Accepted
    Notes:© 2021 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:14 Jan 2021 16:58
    Last modified:16 Apr 2024 07:06
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/75072
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