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A method for evaluating levitation performance of electromagnetic guideway
Physica C: Superconductivity and its Applications ( IF 1.3 ) Pub Date : 2022-07-09 , DOI: 10.1016/j.physc.2022.1354100
Ning Li , Ying Xin , Wei Hong , Yuying Xing , Yan Zhang , Changqi Wang

The levitation force can directly reflect the levitation performance of high temperature superconducting (HTS) maglev. In the previous studies, the permanent magnet guideway (PMG) was used as the favorite guideway type, whose levitation performance has been studied through many theoretical calculations, simulations, and experiments. In recent years, the feasibility of electromagnetic guideway (EMG) has been proposed and studied. Continuing to use the levitation force calculation method designed for PMG to cope with EMG will cause some problems. In this study, we improved a levitation force calculation method for E-shaped EMG prototypes, whose width of the center pillar was set as a variable to generate different field distributions. The levitation force was then measured under the condition that magnetic fluxes in a certain levitation region were the same. Subsequently, the levitation forces were calculated according to the equivalent model method and compared with measurement results. Afterward, the causes of errors were discussed, and the calculation method was improved with two correction approaches. Finally, factors affecting calculation accuracy were analyzed. The above research results may be helpful for the prediction of levitation performance and structural design of EMGs in an HTS maglev system.



中文翻译:

一种电磁导轨悬浮性能评价方法

悬浮力可以直接反映高温超导(HTS)磁悬浮的悬浮性能。在以往的研究中,永磁导轨(PMG)被用作最喜欢的导轨类型,通过许多理论计算、模拟和实验对其悬浮性能进行了研究。近年来,人们提出并研究了电磁导轨(EMG)的可行性。继续使用为PMG设计的悬浮力计算方法来应对EMG会导致一些问题。在这项研究中,我们改进了 E 形 EMG 原型的悬浮力计算方法,其中心柱的宽度被设置为变量以生成不同的场分布。然后在一定悬浮区域的磁通量相同的条件下测量悬浮力。随后,根据等效模型方法计算悬浮力并与测量结果进行比较。随后讨论了产生误差的原因,并采用两种修正方法对计算方法进行了改进。最后对影响计算精度的因素进行了分析。上述研究结果可能有助于 HTS 磁悬浮系统中 EMG 的悬浮性能预测和结构设计。分析了影响计算精度的因素。上述研究结果可能有助于 HTS 磁悬浮系统中 EMG 的悬浮性能预测和结构设计。分析了影响计算精度的因素。上述研究结果可能有助于 HTS 磁悬浮系统中 EMG 的悬浮性能预测和结构设计。

更新日期:2022-07-09
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