Fabricated by top-seeded melt-texture methods, high-temperature superconducting (HTS) bulk, such as YBaCuO bulk exhibits anisotropic properties of the critical current density J _c spatial distribution in growth sector regions and growth sector boundaries (GSBs). It was found that the YBaCuO bulk arrangement optimization considering the J _c spatial distribution above a permanent magnet guideway (PMG) enhances the levitation performance of the HTS magnetic levitation (maglev) system according to the past experiments. Therefore, from the point of view of practical applications, a theoretical model describing this HTS growth anisotropy is required to reproduce its effect on HTS maglev properties. In this study, we proposed an updated J _c spatial function with an adjustment parameter to better describe HTS bulk’s growth anisotropy. Its Cartesian form is suitable for differently shaped bulk superconductors. We subsequently established a 3D simulation model of an HTS–PMG maglev system and completed the calculations of both the levitation force and decay of two different bulk arrangements above the PMG. The calculation results are consistent with the experimental results, which verifies the reliability of the 3D HTS–PMG maglev model and J _c spatial function. Further, all results show that a more stable HTS levitation with a larger levitation force is generated in the case where the GSB is aligned with the longitudinal direction of the PMG’s largest magnetic field. This provides a reference for HTS maglev designs. Furthermore, the modeling can be a useful tool for optimizing the HTS–PMG maglev system for several scenarios.

高温超导（HTS）块（例如YBaCuO块）通过播种的熔融纹理方法制造，在生长区区域和生长区边界（GSB）中表现出临界电流密度J _c空间分布的各向异性。发现，根据过去的实验，考虑永磁体导轨（PMG）上方J _c空间分布的YBaCuO整体布置优化可提高HTS磁悬浮（maglev）系统的悬浮性能。因此，从实际应用的角度来看，需要一个描述这种HTS生长各向异性的理论模型来再现其对HTS磁悬浮特性的影响。在这项研究中，我们提出了一个更新的J _c具有调整参数的空间函数，以更好地描述HTS块的生长各向异性。它的笛卡尔形式适用于不同形状的块状超导体。随后，我们建立了HTS-PMG磁悬浮系统的3D仿真模型，并完成了PMG上方两个不同的整体布置的悬浮力和衰减的计算。计算结果与实验结果吻合，验证了3D HTS-PMG磁悬浮模型和J _c的可靠性。空间功能。此外，所有结果表明，当GSB与PMG最大磁场的纵向对齐时，会产生具有更大悬浮力的更稳定的HTS悬浮。这为HTS磁悬浮设计提供了参考。此外，建模可以成为在多种情况下优化HTS-PMG磁悬浮系统的有用工具。