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.

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.

Dynamical Behavior of HTS Maglev System Over a NdFeB Guideway With a Fluctuant Field Distribution

2019 ◽  
Vol 29 (2) ◽  
pp. 1-6 ◽  
Author(s):  
Yong Zhao ◽  
Changwei Ji ◽  
Ye Yang ◽  
Lifeng Zhao ◽  
Dajin Zhou ◽  
...  
Keyword(s):  
Field Distribution ◽  
Dynamical Behavior ◽  
Maglev System ◽  
Ndfeb Guideway ◽  
Hts Maglev

scholarly journals Incremental Linear Switched Reluctance Actuator

2021 ◽  
Author(s):  
Aymen Lachheb ◽  
Lilia El Amraoui
Keyword(s):  
Permanent Magnet ◽  
Analytical Model ◽  
Special Interest ◽  
Magnetic Circuit ◽  
Force Density ◽  
Linear Actuator ◽  
Permanent Magnet Synchronous Motors ◽  
Switched Reluctance ◽  
Synchronous Motors ◽  
Electromagnetic Structure

Linear switched reluctance actuators are a focus of study for many applications because of their simple and robust electromagnetic structure, despite their lower thrust force density when compared with linear permanent magnet synchronous motors. This chapter deals with incremental linear actuator have switched reluctance structure. First, the different topologies of linear incremental actuators are mentioned. Furthermore, a special interest is focused on the switched reluctance linear actuator then the operating principal is explained. In addition, an analytical model of the proposed actuator is developed without taking account of the saturation in magnetic circuit. Finally, the control techniques that can be applied to the studied actuator are presented.

Influence of Auxiliary Permanent Magnet on the High-$T_{\rm c}$ Superconductive Hybrid Maglev System

2010 ◽  
Vol 20 (3) ◽  
pp. 915-919 ◽  
Author(s):  
Wei Liu ◽  
Jiasu Wang ◽  
Suyu Wang ◽  
Qunxu Lin ◽  
Donghui Jiang ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Maglev System

Dynamic Responses of HTS Maglev System Under Track Random Irregularity

2020 ◽  
Vol 30 (4) ◽  
pp. 1-7
Author(s):  
Li Wang ◽  
Zigang Deng ◽  
Hongdi Wang ◽  
Haitao Li ◽  
Kaiying Li ◽  
...  
Keyword(s):  
Dynamic Responses ◽  
Maglev System ◽  
Hts Maglev ◽  
Random Irregularity
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