IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v13y2020i24p6672-d463730.html
   My bibliography  Save this article

Harmonic Overvoltage Analysis of Electric Railways in a Wide Frequency Range Based on Relative Frequency Relationships of the Vehicle–Grid Coupling System

Author

Listed:
  • Qiujiang Liu

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Binghan Sun

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Qinyao Yang

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Mingli Wu

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

  • Tingting He

    (School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China)

Abstract

Harmonic overvoltage in electric railway traction networks can pose a serious threat to the safe and stable operation of the traction power supply system (TPSS). Existing studies aim at improving the control damping of grid-connected converters, neglecting the impedance frequency characteristics (IFCs) of the actual TPSS. The applicable frequency range of these studies is relatively low, usually no more than half of the switching frequency, and there is a large gap with the actual traction network harmonic overvoltage frequency range of 750 Hz–3750 Hz. In this paper, first, the IFCs of the actual TPSS in the wide frequency range of 150 Hz–5000 Hz are obtained through field tests, and the resonant frequency distribution characteristics of TPSS are analyzed. After that, the aliasing effect of the sampling process and the sideband effect of the modulation process of the digital control of the grid-connected converter are considered. Based on the relative relationships among the inherent resonant frequency of the TPSS, sampling frequency and switching frequency, an impedance matching analysis method is proposed for the wide frequency range of the vehicle–grid coupling system. By this method, the sampling frequency and switching frequency can be decoupled, and the harmonic overvoltage of traction network in the frequency range of two times switching frequency and above can be directly estimated. Finally, the method proposed in this paper is validated by the comparative simulation analysis of seven different cases.

Suggested Citation

  • Qiujiang Liu & Binghan Sun & Qinyao Yang & Mingli Wu & Tingting He, 2020. "Harmonic Overvoltage Analysis of Electric Railways in a Wide Frequency Range Based on Relative Frequency Relationships of the Vehicle–Grid Coupling System," Energies, MDPI, vol. 13(24), pages 1-16, December.
  • Handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6672-:d:463730
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/13/24/6672/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/1996-1073/13/24/6672/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Fulin Zhou & Feifan Liu & Ruixuan Yang & Huanrui Liu, 2020. "Method for Estimating Harmonic Parameters Based on Measurement Data without Phase Angle," Energies, MDPI, vol. 13(4), pages 1-19, February.
    2. Ruixuan Yang & Fulin Zhou & Kai Zhong, 2020. "A Harmonic Impedance Identification Method of Traction Network Based on Data Evolution Mechanism," Energies, MDPI, vol. 13(8), pages 1-15, April.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Andrea Mariscotti & Leonardo Sandrolini, 2021. "Detection of Harmonic Overvoltage and Resonance in AC Railways Using Measured Pantograph Electrical Quantities," Energies, MDPI, vol. 14(18), pages 1-22, September.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Denis Sidorov & Fang Liu & Yonghui Sun, 2020. "Machine Learning for Energy Systems," Energies, MDPI, vol. 13(18), pages 1-6, September.
    2. Andrea Mariscotti, 2022. "Non-Intrusive Load Monitoring Applied to AC Railways," Energies, MDPI, vol. 15(11), pages 1-27, June.
    3. Ruixuan Yang & Fulin Zhou & Kai Zhong, 2020. "A Harmonic Impedance Identification Method of Traction Network Based on Data Evolution Mechanism," Energies, MDPI, vol. 13(8), pages 1-15, April.
    4. Rafael S. Salles & Sarah K. Rönnberg, 2023. "Review of Waveform Distortion Interactions Assessment in Railway Power Systems," Energies, MDPI, vol. 16(14), pages 1-33, July.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:13:y:2020:i:24:p:6672-:d:463730. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.