Railways traversing steeply sloping plateaus in mountainous regions face severe environmental conditions. However, weak external power grids and severe fluctuations in traction power threaten the stability of the grids and pose risks to train operation. To date, little research has focused on train timetable optimization in such mountainous regions, while simultaneously considering their impact on the power grid. In the present work, we took a mountain the railway was under construction as an example to study train timetable optimization of mixed passenger and freight railways to reduce their impact on weak power grids. The 372.47-km mountain railway, on which the study was based, is an electrified railway running from Qamdo to Linzhi in western China. An optimization model of train uniformity and optimal passenger travel time was constructed, and a two-layer improved genetic algorithm proposed to obtain the optimal solution. This was shown to effectively save energy, reduce load fluctuations, and suppress voltage fluctuations to reduce railroad operational impact on the power grid.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Train Timetable Optimization for Suppressing Traction Power Fluctuations, Especially on Mountainous Railway Lines with Long, Steep Grades


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:
    Li, Mi (author) / Dai, Chaohua (author) / Chen, Weirong (author)


    Publication date :

    2024-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English



    Railway Timetable Optimization

    Reisch, Julian | TIBKAT | 2021

    Free access

    Train timetable generation system, train timetable generation device, and train timetable generation method

    YASUMOTO MASAHIRO / HORI SATORU / SHIMURA AKITOSHI | European Patent Office | 2015

    Free access

    Railway Timetable Diagnostic Analysis Based on Train Operation Data

    Xu, Changan / Ni, Shaoquan / Li, Shengdong et al. | Springer Verlag | 2018


    Train Timetable Rescheduling for High-Speed Railway Under Emergency Conditions

    Jia, Limin / Wang, Li / Qin, Yong | Springer Verlag | 2021