A superconducting levitated small scale vehicle with linear synchronous motor

Stephan, R.M.; Ferreira, A.C.; Andrade, R. de; Neves, Mônica A.S.; Moreira, Manuel Area; Rosario, M.A.P.; Machado, Ocione José; Nicolsky, R.

doi:10.1109/isie.2003.1267246

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…As one of the most promising application of bulk high temperature superconductors (HTSCs), the high temperature superconducting (HTS) Maglev transportation system has been widely studied and developed [1][2][3][4]. Up to now, the low load capacity and the small stiffness are still big challenges to commercialize the HTS Maglev system.…”

Section: Introductionmentioning

confidence: 99%

Stable Levitation Performance of Bulk High Temperature Superconductor Magnet in Applied Magnetic Fields

Zheng

Gou

et al. 2014

MSF

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Bulk high temperature superconductor magnet (HTSCM) has been considered to get the better stable levitation in applied magnetic field which is not the original field-cooling magnetization (FCM) field in this paper. The vibration disturbance experiments firstly showed that a permanent magnet (PM) can suspend stably under a bulk Yttrium Barium Copper Oxide (YBCO) HTSCM. This implies that the stable levitation of one single bulk HTSCM is able to realize in the other magnetic field even from one single small PM due to the re-magnetization effect. Secondly, it is found that the HTSCM with more trapped flux produced larger guidance forces and smaller repulsion levitation forces compared with the well-recognized FCM condition of the30mm field-cooling height by the permanent magnet guideway (PMG). Especially, the HTSCM with the 0.349T trapped field achieved a maximum 9.8N guidance force, which is over impressive 7 times than the conventional FCM condition. So, it is feasible to introduce the bulk HTSCM into the HTS Maglev transportation system because this pre-magnetization method of the onboard superconductor bulks is not only helpful to improve the levitation capability and stability, but also enhance the dynamic property above the practical PMG.

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Section: Introductionmentioning

confidence: 99%

Stable Levitation Performance of Bulk High Temperature Superconductor Magnet in Applied Magnetic Fields

Zheng

Gou

et al. 2014

MSF

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“…S INCE THE man-loading high temperature superconducting (HTS) Maglev demonstrations are tested successfully in China, Germany and Russia [1]- [3], more and more scientists and engineers have focused on this flux-pining type HTS Maglev system and its promising practical applications [4]- [9]. The key issues of their future application are still about how to provide heavy load capacity and reduce running loss, which are essentially determined by material property of high temperature superconductor (HTSC), the magnetism property of magnet and the assembling technology.…”

Section: Introductionmentioning

confidence: 99%

Performance Improvement of High Temperature Superconducting Maglev System by Eddy Current Damper

Zheng

Deng

Zhang

et al. 2009

IEEE Trans. Appl. Supercond.

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An indirect method of incorporating eddy current damper in the high temperature superconducting (HTS) Maglev vehicle system is presented in the paper. Effect of eddy current damper with different shapes and fixed positions are studied in a seven-bulk YBaCuO levitation system over the permanent magnet guideway (PMG). Similarly to the direct optimizations of the HTS-PMG system, this method is able to improve the damping performance of the HTS Maglev vehicle system without changing other performance. On the other hand, the drag force caused by eddy current damper has been discussed and analysed, which is regarded as a possible technical obstacle for the practical HTS Maglev application. Here, it is concluded that the drag effect can be solved by the propulsion tool. So, the incorporation method of eddy current damper can be one effective improvement method for the practical HTS Maglev application in the future.

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Recent Development of High Temperature Superconducting Maglev System in China

Wang

Zheng

2009

IEEE Trans. Appl. Supercond.

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A superconducting levitated small scale vehicle with linear synchronous motor

Cited by 4 publications

References 5 publications

Stable Levitation Performance of Bulk High Temperature Superconductor Magnet in Applied Magnetic Fields

Stable Levitation Performance of Bulk High Temperature Superconductor Magnet in Applied Magnetic Fields

Performance Improvement of High Temperature Superconducting Maglev System by Eddy Current Damper

Recent Development of High Temperature Superconducting Maglev System in China

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