Power quality was always a major concern in designing an electric supply system for railways. Since electric railcars are usually single-phase loads, they draw high amounts of negative sequence component of currents, in addition to harmonic contents and transient currents. Therefore, many compensation methods were examined to improve the power quality indices. The active power quality conditioner (APQC) can be considered as an ideal compensator for high-speed railway, which contains a three-phase converter connected to the traction substation through a step-down transformer. However, with the growth of railway loads, the nominal rating of the solid-state high-frequency switches of APQC increases seriously, which in turn, results in an exponential growth of the cost of power-electronic switches. Therefore, for a very high-capacity railway system, it is not economic to apply an APQC. As a solution, a combination of APQC with the static VAr compensator is proposed in this study, which reduces the rating of APQC, and improves the power quality of the system. Simulation results validate the pre-defined hypothesis. Moreover, the performance of APQC depends on the DC-link operation, for which genetic-algorithm optimisation has been applied to obtain an optimum design of a stable DC-link voltage.


    Zugriff

    Zugriff über TIB


    Exportieren, teilen und zitieren



    Titel :

    Hybrid railway power quality conditioner for high-capacity traction substation with auto-tuned DC-link controller



    Erschienen in:

    Erscheinungsdatum :

    01.09.2016


    Format / Umfang :

    8 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Hybrid railway power quality conditioner for high‐capacity traction substation with auto‐tuned DC‐link controller

    Langerudy, Adel Tabakhpour / Mousavi G, Sayed Mohammad | Wiley | 2016

    Freier Zugriff

    Railway System: Hybrid Railway Power Substation

    Robyns, Benoît / Saudemont, Christophe / Hissel, Daniel et al. | Wiley | 2016


    Study of novel traction substation hybrid power quality compensator

    Sun Zhuo / Jiang, Xinjian / Zhu, Dongqi | Tema Archiv | 2002


    Traction power supply of Oeresund Railway Link

    Bawer, A. / Larsson, K. / Schutte, T. et al. | British Library Online Contents | 2002


    Power peak value adjusting system and method for railway traction substation

    ZHANG MIN / ZHOU FANGYUAN / TIAN ZHE et al. | Europäisches Patentamt | 2020

    Freier Zugriff