Influence of the Vertical Inclination of Permanent Magnet Guideway on Levitation Characteristics of Hts Maglev System

2010 ◽  
Vol 24 (5) ◽  
pp. 1677-1681
Author(s):  
S. T. Pan ◽  
S. Y. Wang ◽  
D. H. Jiang ◽  
J. S. Wang
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Guideway ◽  
Maglev System ◽  
Hts Maglev

Levitation or suspension: Which one is better for the heavy-load HTS maglev transportation

2015 ◽  
Vol 29 (25n26) ◽  
pp. 1542048
Author(s):  
Wei Liu ◽  
Dong Kang ◽  
X. F. Yang ◽  
Fei Wang ◽  
G. H. Peng ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Force Density ◽  
Operation Performance ◽  
Heavy Load ◽  
Trapped Field ◽  
Maglev System ◽  
Hts Maglev ◽  
Very High

Because of the limitation of permanent magnet (PM), the efficient of bulk high-[Formula: see text] superconductor (HTSC) in a high-[Formula: see text] superconducting (HTS) maglev system is not very high. It is better to magnetize the bulk HTSC with a high trapped field to increase the force density. The different application type of magnetized bulk HTSC in a maglev system, namely, levitation or suspension type, will bring quite different operation performance. This paper discusses the influence of application type on operation performance of magnetized bulk HTSC by experiments and simulations. From the discussion, it can be found which application type is better for the heavy-load HTS maglev system.

Levitation performance of different bulk YBaCuO arrays above a permanent magnet guideway for HTS maglev systems

2017 ◽  
Vol 705 ◽  
pp. 301-308 ◽  
Author(s):  
Shuaishuai Si ◽  
Jun Zheng ◽  
Botian Zheng ◽  
Yulei Zhang ◽  
Nan Qian ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Permanent Magnet Guideway ◽  
Levitation Performance ◽  
Hts Maglev

The Relationship between Temperature and Levitation Stiffness of YBCO Bulk for Maglev Vehicle

2012 ◽  
Vol 236-237 ◽  
pp. 1270-1274
Author(s):  
Hua Jing ◽  
Ming Jiang ◽  
Su Yu Wang
Keyword(s):  
High Temperature ◽  
Magnetic Levitation ◽  
Permanent Magnet Guideway ◽  
Ybco Bulk ◽  
Maglev System ◽  
Maglev Vehicle ◽  
Levitation Performance ◽  
Hts Maglev ◽  
Lower Temperature ◽  
The Relationship

In order to make the levitation performance of the high temperature superconducting (HTS) magnetic levitation (Maglev) vehicle more stable and safer, in this paper, using a cryogenic measurement system, we measured the levitation forces of YBCO bulk above halbach-type permanent magnet guideway (Halbach PMG) in the temperature range from 77 K to 60 K, then in the condition of deep cryogenic, the levitation forces of YBCO bulk at different field cooling heights (FCHs) were also measured, according to which the levitation stiffness were calculated. The results show that the levitation stiffness of HTS/PMG Maglev system is better at lower temperature. Moreover, when the temperature of YBCO bulk decreases from 77 K to 73 K, the levitation stiffness largely increases in any FCHs. However, after the temperature of the bulk decreases to 73 K, the rate of the levitation stiffness increased gradually reduces. The results are helpful to HTS Maglev vehicle application.

A method to enhance the curve negotiation performance of HTS Maglev

2015 ◽  
Vol 29 (25n26) ◽  
pp. 1542037
Author(s):  
T. Che ◽  
Y. F. Gou ◽  
Z. G. Deng ◽  
J. Zheng ◽  
B. T. Zheng ◽  
...  
Keyword(s):  
Permanent Magnet Guideway ◽  
Maglev System ◽  
Actual Application ◽  
Maglev Vehicle ◽  
Negotiation Performance ◽  
Hts Maglev ◽  
Lateral Displacements ◽  
Stable Characteristic ◽  
Eccentric Distance ◽  
Curve Negotiation

High temperature superconducting (HTS) Maglev has attracted more and more attention due to its special self-stable characteristic, and much work has been done to achieve its actual application, but the research about the curve negotiation is not systematic and comprehensive. In this paper, we focused on the change of the lateral displacements of the Maglev vehicle when going through curves under different velocities, and studied the change of the electromagnetic forces through experimental methods. Experimental results show that setting an appropriate initial eccentric distance (ED), which is the distance between the center of the bulk unit and the center of the permanent magnet guideway (PMG), when cooling the bulks is favorable for the Maglev system’s curve negotiation. This work will provide some available suggestions for improving the curve negotiation performance of the HTS Maglev system.

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.

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