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Influence of Infrastructure and Operating Conditions on Energy Performance of DC Transit Systems

Author

Listed:
  • Sahil Bhagat

    (Department of Electrical, Electronic and Telecommunications Engineering, and Naval Architecture, University of Genoa, 16145 Genoa, Italy)

  • Jacopo Bongiorno

    (RINA Services S.p.A., 16138 Genoa, Italy)

  • Andrea Mariscotti

    (Department of Electrical, Electronic and Telecommunications Engineering, and Naval Architecture, University of Genoa, 16145 Genoa, Italy)

Abstract

Energy efficiency is more and more important for modern electrified transportation systems, requiring an understanding of the various indexes of performance (regenerability, receptivity, and energy losses, thus including braking recovered energy and energy loss in catenary) and of the influence of the main system parameters (headway, line voltage, substation separation, etc.). By means of electromechanical simulation, the most relevant parameters and system conditions are identified as influencing the efficiency performance and optimization capability. Besides the assessment of such efficiency performance indexes, identifying their typical ranges of variation, one further outcome is the identification of characteristic system parameter combinations that lead to extreme variations in the system energy efficiency itself. Such peculiar variations are caused by occasionally synchronized patterns of trains along the line and result in a significant local increase or decrease in efficiency. Efficiency drop scenarios in particular should be taken into consideration for worst-case analysis and to devise effective mitigations. To this aim, the effect of differently distributed passenger stations is considered.

Suggested Citation

  • Sahil Bhagat & Jacopo Bongiorno & Andrea Mariscotti, 2023. "Influence of Infrastructure and Operating Conditions on Energy Performance of DC Transit Systems," Energies, MDPI, vol. 16(10), pages 1-26, May.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:10:p:3975-:d:1142410
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    References listed on IDEAS

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    Cited by:

    1. Katarina Vranešić & Sahil Bhagat & Andrea Mariscotti & Robert Vail, 2023. "Measures and Prescriptions to Reduce Stray Current in the Design of New Track Corridors," Energies, MDPI, vol. 16(17), pages 1-25, August.
    2. Andrea Mariscotti, 2024. "Estimation of Railway Line Impedance at Low Frequency Using Onboard Measurements Only," Energies, MDPI, vol. 17(15), pages 1-23, July.
    3. Hao Zhang & Jian Zhang & Linjie Zhou & Peng Xiong & Zhuofan Zhao, 2023. "Hierarchical Operation Optimization for Regenerative Braking Energy Utilizing in Urban Rail Traction Power Supply System," Energies, MDPI, vol. 16(21), pages 1-20, October.

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