Power quality event analysis in 25 kV 50 Hz AC railway system networks

Seferi, Yljon and Clarkson, Paul and Blair, Steven M. and Mariscotti, Andrea and Stewart, Brian G.; (2019) Power quality event analysis in 25 kV 50 Hz AC railway system networks. In: 10th IEEE International Workshop on Applied Measurements for Power Systems. International Workshop on Applied Measurements for Power Systems (AMPS) . IEEE, DEU. ISBN 9781728100753 (https://doi.org/10.1109/AMPS.2019.8897765)

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Abstract

Power quality (PQ) phenomena characterizing the voltage and current signals of railway electricity networks differ from those present in transmission and distribution electricity grids. Presently, there are no standardized procedures focused on PQ measurement techniques explicitly for railway applications. This paper evaluates whether the standard power quality measurement algorithms used in monitoring 50 Hz electrical grids are sufficient for an accurate evaluation and classification of PQ parameters of voltage dips, swells and interruptions present in 25 kV AC railways. An algorithm is presented to better characterize different types of interruption, distinguishing between causes due to network configuration or by other factors. For voltage dips and swells it is also shown that a smaller window size (less than 1 cycle) produces a more accurate estimate of the disturbance magnitude and duration. The two methods are verified against recorded signals of pantograph voltage and current. Recommendations are therefore provided for PQ measurement algorithms for AC railways.

  • Item type:Book Section
    ID code:70058
    Dates:
    Date
    Event
    14 November 2019
    Published
    27 September 2019
    Published Online
    2 August 2019
    Accepted
    Notes:© 2019 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:08 Oct 2019 11:41
    Last modified:24 Apr 2024 00:07
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/70058
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