In urban rail transit, the running rails are generally employed as the traction current return path, which inevitably causes rail potential and stray current issues. As one of the solutions, zero-resistance converter system (ZRCS), consisting of negative resistance converters and switch units, establishes zero-resistance loops to shorten the return loop of traction current in running rails, so as to mitigate rail potential and stray current. Considering the defects of accumulated detection errors by multiple voltage sensors in traditional control strategy (TCS), an improved control strategy (ICS) taking rail potential at specific points as control objects is proposed. Furthermore, based on mathematical model of ZRCS, the rail potential and stray current distributions under different control strategies are discussed. Compared with TCS, the ICS enhances ZRCS rail potential and stray current mitigation performance. Finally, the feasibility and effectiveness of the ICS are validated through experimental verification.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Improved control strategy of zero-resistance converter system for rail potential and stray current mitigation


    Contributors:
    Chen, Maolu (author) / Yang, Xiaofeng (author) / Zheng, Trillion Q (author) / Zhao, Zhijun (author) / Xia, Xue (author) / Gu, Jingda (author)

    Published in:

    Publication date :

    2023-03-04


    Size :

    19 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown







    Stray Current and Rail Potential Dynamic Emulator for Urban Rail Transit System

    Shao, Huanxu / Yang, Xiaofeng / He, Yanfang et al. | IEEE | 2023


    Understanding Stray Current Mitigation, Testing and Maintenance on DC Powered Rail Transit Systems

    Memon, S. / American Society of Mechanical Engineers | British Library Conference Proceedings | 2013