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Levitation-Force Investigation of High-Temperature Superconducting Maglev System Under Different Variations of the Vertical Displacement

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Abstract

In the practical application of high-temperature superconducting (HTS) maglev vehicle, the vehicle body ascends and descends in the vertical direction frequently with the passengers on and off boarding, such vertical movement may change the levitation performance but this influence have not been researched. In this article, the influence of the vertical movement on the levitation force in two different types of permanent magnet guideway (PMG) and different movement displacements was experimentally analyzed. We found that the levitation force drastically decays first, and then decays slightly, which is similar to the relaxation phenomena. Meanwhile, the experimental results indicate that the levitation force decay trends to enlargement with the decrease of the working height (WH) and with the increase of the vertical displacements. These phenomena can be ascribed to the magnetic hysteresis loss in the bulk high-temperature superconductor (HTSC).

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Authors and Affiliations

  1. Applied Superconductivity Laboratory (ASCLab), Southwest Jiaotong University, Chengdu, Sichuan, 610031, P.R. China

    D. H. Jiang, G. T. Ma, Q. X. Lin, Y. Y. Xu, S. Y. Wang & J. S. Wang

  2. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, Sichuan, 610031, P.R. China

    D. H. Jiang, G. T. Ma, Q. X. Lin & Y. Y. Xu

  3. National Laboratory of Rail Transit, Chengdu, Sichuan, 610031, P.R. China

    D. H. Jiang, G. T. Ma, Q. X. Lin, Y. Y. Xu, S. Y. Wang & J. S. Wang

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  1. D. H. Jiang
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  2. G. T. Ma
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  3. Q. X. Lin
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  4. Y. Y. Xu
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  5. S. Y. Wang
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  6. J. S. Wang
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Correspondence to D. H. Jiang.

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Jiang, D.H., Ma, G.T., Lin, Q.X. et al. Levitation-Force Investigation of High-Temperature Superconducting Maglev System Under Different Variations of the Vertical Displacement. J Supercond Nov Magn 25, 25–30 (2012). https://doi.org/10.1007/s10948-011-1202-9

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  • DOI: https://doi.org/10.1007/s10948-011-1202-9

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