A High-speed Running Test Platform for High-temperature Superconducting Maglev

2022 ◽  
pp. 1-1
Author(s):  
Zigang Deng ◽  
Weihua Zhang ◽  
Li Wang ◽  
Jingzhong Zhao ◽  
Weifeng Zhang ◽  
...  
Keyword(s):  
High Temperature ◽  
High Speed ◽  
High Temperature Superconducting ◽  
Test Platform ◽  
High Temperature Superconducting Maglev

Analysis of the Permanent Magnet Guideway of High Temperature Superconducting Maglev

2013 ◽  
Vol 745-746 ◽  
pp. 197-202 ◽  
Author(s):  
Chang Qing Ye ◽  
Zi Gang Deng ◽  
Jia Su Wang
Keyword(s):  
High Temperature ◽  
Permanent Magnet ◽  
High Speed ◽  
Optimization Design ◽  
Optimization Methods ◽  
High Temperature Superconducting ◽  
Practical Engineering ◽  
Hts Maglev ◽  
Ndfeb Permanent Magnet ◽  
The Cost

t was theoretically and experimentally proved that High Temperature Superconducting (HTS) Maglev had huge potential employment in rail transportation and high speed launch system. This had attracted great research interests in practical engineering. The optimization design was one of the most important works in the application of the HTS Maglev. As the NdFeB permanent magnet and HTS materials prices increased constantly, the design optimization of the permanent guideway (PMG) of HTS maglev became one of the indispensable works to decrease the cost of the application. This paper first reviewed four types of PMGs used by the HTS Maglev, then disucssed their structures and magnetic fields. Finally, the optimization methods of these four PMGs were compared. It was suggested that with better optimization methods, the levitation performance within a limit cost got better. That would be helpful to the future numerical optimization of the PMG of the HTS maglev.

scholarly journals High-Temperature Superconducting Non-Insulation Closed-Loop Coils for Electro-Dynamic Suspension System

Electronics ◽  
2021 ◽  
Vol 10 (16) ◽  
pp. 1980
Author(s):  
Li Lu ◽  
Wei Wu ◽  
Xin Yu ◽  
Zhijian Jin
Keyword(s):  
High Temperature ◽  
Liquid Helium ◽  
High Speed ◽  
Closed Loop ◽  
Permanent Magnets ◽  
Superconducting Magnets ◽  
Current Mode ◽  
Persistent Current ◽  
Magnetomotive Force ◽  
High Temperature Superconducting

The null-flux electro-dynamic suspension (EDS) system is a feasible high-speed maglev system with speeds of above 600 km/h. Owing to their greater current-carrying capacity, superconducting magnets can provide a super-magnetomotive force that is required for the null-flux EDS system, which cannot be provided by electromagnets and permanent magnets. Relatively mature high-speed maglev technology currently exists using low-temperature superconducting (LTS) magnets as the core, which works in the liquid helium temperature region (T ⩽ 4.2 K). Second-generation (2G) high-temperature superconducting (HTS) magnets wound by REBa2Cu3O7−δ (REBCO, RE = rare earth) tapes work above the 20 K region and do not rely on liquid helium, which is rare on Earth. In this study, the HTS non-insulation closed-loop coils module was designed for an EDS system and excited with a persistent current switch (PCS). The HTS coils module can work in the persistent current mode and exhibit premier thermal quenching self-protection. In addition, a full-size double-pancake (DP) module was designed and manufactured in this study, and it was tested in a liquid nitrogen (LN2) environment. The critical current of the DP module was approximately 54 A, and it could work in the persistent current mode with an average decay rate measured over 12 h of 0.58%/day.

An Update High-Temperature Superconducting Maglev Measurement System

2007 ◽  
Vol 17 (2) ◽  
pp. 2067-2070 ◽  
Author(s):  
Suyu Wang ◽  
Jiasu Wang ◽  
Changyan Deng ◽  
Yiyu Lu ◽  
Youwen Zeng ◽  
...  
Keyword(s):  
High Temperature ◽  
Measurement System ◽  
High Temperature Superconducting ◽  
High Temperature Superconducting Maglev

Two Application Issues of High Temperature Superconducting Maglev in the Evacuated Tube Transportation

2011 ◽  
Vol 71-78 ◽  
pp. 4389-4393 ◽  
Author(s):  
Yao Ping Zhang ◽  
Jian Yue Yu ◽  
Yong Zhao ◽  
Ben Lin Liu
Keyword(s):  
High Temperature ◽  
Liquid Nitrogen ◽  
High Reliability ◽  
Relief Valve ◽  
High Temperature Superconducting ◽  
Energy Consuming ◽  
Evacuated Tube Transportation ◽  
Evacuated Tube ◽  
High Temperature Superconducting Maglev ◽  
Stability Energy

Based on some special merits such as self-stability, energy-consuming-efficiency, less pollution, high reliability, and so on, high temperature superconducting maglev (HTSM) is one of the promising potential technologies among present Maglev technologies for the future evacuated tube transportation (ETT). In this paper, the possibility, the merits, and the demerits of the applications of HTSM in ETT system are investigated. Especially, two application issues, liquid nitrogen vessel on the vehicle and isolated gate set in ETT, are discussed and solutions are suggested. On the first issue, this paper suggests to install a pressure relief valve on the sealed liquid nitrogen vessel so as to reduce the liquid nitrogen vaporization in the vacuum tube. As for the second issue, this paper recommends to use HTSM permanent magnet (PM) track structure with a streamline separated gap between the surface of track and the bottom of liquid nitrogen vessel. Those guideway structure could fit to the isolation gate setting in ETT.

Design and evaluation of a high temperature superconducting Maglev system

2000 ◽  
Vol 341-348 ◽  
pp. 2627-2628 ◽  
Author(s):  
R.J. Cruise ◽  
K. Vandenbroucke ◽  
C.F. Landy ◽  
G.J. Barnes ◽  
M.D. McCulloch
Keyword(s):  
High Temperature ◽  
High Temperature Superconducting ◽  
Maglev System ◽  
High Temperature Superconducting Maglev
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