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A New Hybrid Fault Identification Method Based on Multiterminals Synchronous Measure Information for All Parallel at Traction Power Supply System

Author

Listed:
  • Shuai Wang

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China)

  • Minwu Chen

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China)

  • Qunzhan Li

    (School of Electrical Engineering, Southwest Jiaotong University, Chengdu 611756, China)

  • Wenxun Huang

    (Electrification Department, China Railway First Survey & Design Institute Group Ltd., Xi’an 710043, China)

  • Bo Wu

    (Electrification Department, China Railway First Survey & Design Institute Group Ltd., Xi’an 710043, China)

Abstract

The all parallel autotransformer (AT) traction power supply system (TPSS) including several subsections is widely used for high-speed railways. Unfortunately, any fault of catenary and negative feeder will cause all subsections power interruption in the whole system. Moreover, due to the nonlinear relationship between the distance and impedance as well as the symmetry of the system, conventional distance protection schemes fail to identify the fault subsection and the fault types. In this paper, a novel segmental power supply scheme is presented, which can switch the catenary and negative feeder at each AT subsection on and off independently. Based on the theoretical analysis of the electrical characteristics of the traction power network, multiterminals synchronous information is applied and a hybrid fault identification method is proposed, which can accurately identify the fault subsection and fault type. Consequently, only the catenary or negative feeder at the fault subsection will be quickly removed from service without the effect on normal operation of other subsections. Therefore, the reliability of all parallel AT TPSS is improved considerably. This method was verified through simulation and laboratory experiments by the case studies.

Suggested Citation

  • Shuai Wang & Minwu Chen & Qunzhan Li & Wenxun Huang & Bo Wu, 2018. "A New Hybrid Fault Identification Method Based on Multiterminals Synchronous Measure Information for All Parallel at Traction Power Supply System," Energies, MDPI, vol. 11(10), pages 1-21, October.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:10:p:2698-:d:174706
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    References listed on IDEAS

    as
    1. Jesus Serrano & Carlos A. Platero & Maximo López-Toledo & Ricardo Granizo, 2015. "A Novel Ground Fault Identification Method for 2 × 5 kV Railway Power Supply Systems," Energies, MDPI, vol. 8(7), pages 1-20, July.
    2. Yimin Zhou & Guoqing Xu & Yanfeng Chen, 2012. "Fault Location in Power Electrical Traction Line System," Energies, MDPI, vol. 5(12), pages 1-17, November.
    3. Guoqing Xu & Yimin Zhou & Yanfeng Chen, 2013. "Model-Based Fault Location with Frequency Domain for Power Traction System," Energies, MDPI, vol. 6(7), pages 1-18, June.
    4. Jesus Serrano & Carlos A. Platero & Maximo López-Toledo & Ricardo Granizo, 2015. "Serrano, J., et al. A Novel Ground Fault Identification Method for 2 × 5 kV Railway Power Supply Systems. Energies 2015, 8 , 7020-7039," Energies, MDPI, vol. 8(10), pages 1-2, September.
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