A two-pole Halbach permanent magnet guideway for high temperature superconducting Maglev vehicle

作者：Jing H^*; Wang J; Wang S; Wang L; Liu L; Zheng J; Deng Z; Ma G; Zhang Y; Li J

来源：Physica C-Superconductivity and Its Applications, 2007, 463: 426-430.

DOI：10.1016/j.physc.2007.05.030

• high temperature superconductor (HTSC)
• Maglev
• Halbach permanent magnet guideway
• levitation force

In order to improve the levitation performance of the high temperature superconducting (HTS) magnetic levitation (Maglev) vehicle, a two-pole Halbach array's permanent magnet guideway (PMG) is proposed, which is called as Halbach PMG. The finite element method (FEM) calculations indicate that Halbach PMG has a wider high-field region than the present PMG of equal PM's transverse section. The levitation force of bulk HTSCs with the present PMG and Halbach PMG are measured. The results show that at different levitation gaps, the force ratios based on the Halbach PMG are about 2.3 times larger than that on the present PMG, which greatly increases the load capability of the system. Therefore, both the numerical analysis and experimental results have confirmed that the Halbach PMG will further enhance the performance of the vehicle and it is possible to decrease the total numbers of onboard HTSCs, reducing overall costs. So based on the Halbach PMG, we further study the width ratios between HTSCs and PMG for making the better use of the onboard HTSCs. Some preliminary results are given. These results are important for further HTS Maglev vehicle system designs using Halbach PMG.

• 出版日期2007-10-1
• 单位西南交通大学