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Design Model of Null-Flux Coil Electrodynamic Suspension for the Hyperloop

Author

Listed:
  • Jungyoul Lim

    (New Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Korea)

  • Chang-Young Lee

    (New Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Korea)

  • Jin-Ho Lee

    (New Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Korea)

  • Wonhee You

    (New Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Korea)

  • Kwan-Sup Lee

    (New Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Korea)

  • Suyong Choi

    (New Transportation Innovative Research Center, Korea Railroad Research Institute, Uiwang-si, Gyeonggi-do 16105, Korea)

Abstract

The Hyperloop has been developed using various technologies to reach a maximum speed of 1200 km/h. Such technologies include magnetic levitation technologies that are suitable for subsonic driving. In the Hyperloop, the null-flux electrodynamic suspension (EDS) system and superconducting magnets (SCMs) can perform stable levitation without control during high-speed driving. Although an EDS device can be accurately analyzed using numerical analysis methods, such as the 3D finite element method (FEM) or dynamic circuitry theory, its 3D configurations make it difficult to use in various design analyses. This paper presents a new design model that fast analyzes and compares many designs of null-flux EDS devices for the Hyperloop system. For a fast and effective evaluation of various levitation coil shapes and arrangements, the computational process of the induced electromotive force and the coupling effect were simplified using a 2D rectangular coil loop, and the induced current and force equations were written as closed-form solutions using the Fourier analysis. Also, levitation coils were designed, and their characteristics were analyzed and compared with each other. To validate the proposed model, the analyzed force responses for various driving conditions and the changed performance trend by design variables were compared with analyzed FEM results.

Suggested Citation

  • Jungyoul Lim & Chang-Young Lee & Jin-Ho Lee & Wonhee You & Kwan-Sup Lee & Suyong Choi, 2020. "Design Model of Null-Flux Coil Electrodynamic Suspension for the Hyperloop," Energies, MDPI, vol. 13(19), pages 1-21, September.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:19:p:5075-:d:421001
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    References listed on IDEAS

    as
    1. Su Y. Choi & Chang Y. Lee & Jung M. Jo & Jae H. Choe & Ye Jun Oh & Kwan S. Lee & Jung Y. Lim, 2019. "Sub-Sonic Linear Synchronous Motors Using Superconducting Magnets for the Hyperloop," Energies, MDPI, vol. 12(24), pages 1-18, December.
    2. Jae-Sung Oh & Taehak Kang & Seokgyun Ham & Kwan-Sup Lee & Yong-Jun Jang & Hong-Sun Ryou & Jaiyoung Ryu, 2019. "Numerical Analysis of Aerodynamic Characteristics of Hyperloop System," Energies, MDPI, vol. 12(3), pages 1-17, February.
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    Cited by:

    1. Ranhee Yoon & Birhan Abebaw Negash & Wonhee You & Jungyoul Lim & Jinho Lee & Changyoung Lee & Kwansup Lee, 2021. "Capsule Vehicle Dynamics Based on Levitation Coil Design Using Equivalent Model of a Sidewall Electrodynamic Suspension System," Energies, MDPI, vol. 14(16), pages 1-22, August.
    2. Jinho Lee & Wonhee You & Jungyoul Lim & Kwan-Sup Lee & Jae-Yong Lim, 2021. "Development of the Reduced-Scale Vehicle Model for the Dynamic Characteristic Analysis of the Hyperloop," Energies, MDPI, vol. 14(13), pages 1-13, June.
    3. Tomasz Kublin & Lech Grzesiak & Paweł Radziszewski & Marcin Nikoniuk & Łukasz Ordyszewski, 2021. "Reducing the Power Consumption of the Electrodynamic Suspension Levitation System by Changing the Span of the Horizontal Magnet in the Halbach Array," Energies, MDPI, vol. 14(20), pages 1-11, October.

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