Analysis of the Permanent Magnet Guideway of High Temperature Superconducting Maglev

Abstract

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.

Optimization study of the Halbach permanent magnetic guideway for high temperature superconducting magnetic levitation

“…Researchers from the Federal University of Rio de Janeiro modified the Halbach PMG by replacing parts of the PM with iron blocks to generate a more uniform magnetic field above the PMG [15]. Researchers from the Huazhong University of Science and Technology improved the iron base of the Halbach PMG to make it easier to install [16]. Additionally, a series of optimization studies have been executed on the size and number of PMs required in the Halbach PMG [17][18][19].…”