Title :
Optimization of Permanent Magnet Guideway for HTS Maglev Vehicle With Numerical Methods
Author :
Zhang, Jianghua ; Zeng, Youwen ; Cheng, Jun ; Tang, Xian
Author_Institution :
Appl. Supercond. Lab., Southwest Jiaotong Univ., Chengdu
Abstract :
Because of the disadvantages of the existing permanent magnetic guideway (PMG) such as low efficiency, a Halbach PMG is proposed to improve the levitation performance of high-temperature superconducting (HTS) magnetic levitation (maglev) vehicle. Magnetic induction of the Halbach PMG is calculated by an analytical method. The screening current density distribution in the superconductor is solved with the flux flow-creep model by the finite-element method, and then the levitation force between the HTS bulk and PMG is calculated by the Lorentz force formula. According to the characteristic of the maglev vehicle, an optimality criterion is proposed to evaluate the levitation performance for the HTS maglev vehicle.
Keywords :
finite element analysis; high-temperature superconductors; magnetic levitation; optimisation; superconducting magnets; vehicles; HTS maglev vehicle; Lorentz force formula; current density distribution; finite-element method; flux flow-creep model; high-temperature superconducting magnetic levitation vehicle; levitation force; magnetic induction; numerical methods; optimization; permanent magnet guideway; Finite-element method (FEM); Halbach permanent magnet guideway; flux flow-creep model; high-temperature superconductors (HTSs);
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2008.2000900
