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Evaluation Model for the Scope of DC Interference Generated by Stray Currents in Light Rail Systems

Author

Listed:
  • Chengtao Wang

    (School of Mechatronic Engineering, China University of Mining and Technology, No. 1 Daxue Road, Xuzhou 221116, China)

  • Wei Li

    (School of Mechatronic Engineering, China University of Mining and Technology, No. 1 Daxue Road, Xuzhou 221116, China)

  • Yuqiao Wang

    (School of Mechatronic Engineering, China University of Mining and Technology, No. 1 Daxue Road, Xuzhou 221116, China)

  • Shaoyi Xu

    (School of Mechatronic Engineering, China University of Mining and Technology, No. 1 Daxue Road, Xuzhou 221116, China)

  • Kunpeng Li

    (Guangzhou Metro Design & Research Institute Co., Ltd., No. 204 Huanshi West Road, Guangzhou 510030, China)

Abstract

Electrochemical corrosion caused by stray currents reduces the lifespan of buried gas pipelines and the safety of light rail systems. Determining the scope of stray current corrosion will help prevent the corrosion of existing buried pipelines and provide an effective reference for new pipeline siting. In response to this problem, in this paper the surface potential gradient was used to evaluate the scope of stray current corrosion. First, an analytical model for the scope of the stray current corrosion combined with distributed parameters and the electric field generated by a point current source was put forward. Second, exemplary calculations were conducted based on the proposed model. Sensitivity of the potential gradient was analyzed with an example of the transition resistance, and the dynamic distribution of surface potential gradient under different locomotive operation modes was also analyzed in time-domain. Finally, the scope was evaluated at four different intervals with the parameters from the field test to judge whether the protective measures need to be taken in areas with buried pipelines and light rail systems nearby or not.

Suggested Citation

  • Chengtao Wang & Wei Li & Yuqiao Wang & Shaoyi Xu & Kunpeng Li, 2019. "Evaluation Model for the Scope of DC Interference Generated by Stray Currents in Light Rail Systems," Energies, MDPI, vol. 12(4), pages 1-17, February.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:4:p:746-:d:208619
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    References listed on IDEAS

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    1. Guifu Du & Dongliang Zhang & Guoxin Li & Chonglin Wang & Jianhua Liu, 2016. "Evaluation of Rail Potential Based on Power Distribution in DC Traction Power Systems," Energies, MDPI, vol. 9(9), pages 1-20, September.
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    Cited by:

    1. Grzegorz Wieczorek & Krzysztof Bernacki & Zbigniew Rymarski & Wojciech Oliwa, 2021. "Gathering Energy of the Stray Currents in Electrified Railways Environment for Power Supply," Energies, MDPI, vol. 14(19), pages 1-19, September.

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