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arXiv 2103.06590cond-mat.supr-con
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用于HTS弹簧圈建模的3D均匀化T-A公式

3D Homogenized T-A Formulation for Modeling HTS Coils

Carlos Roberto Vargas-Llanos, Francesco Grilli

摘要:

高温超导体(HTS)中的损耗的估计在超导装置的设计期间是基本的,因为损耗会强烈地影响冷却系统要求和操作温度。通常,2D有限元分析用于计算HTS中的AC损耗,这是由于缺乏能够准确地表示复杂操作条件(诸如AC传输电流和线圈中的AC外部施加磁场)的解析解。这些2D模型通常是无限长排列的表示。因此,它们不能用于分析端部效应和复杂的3D配置。在这篇文章中,我们使用三维T-A均匀化来分析超导线圈。这允许模拟复杂的几何形状,例如跑道线圈。我们表明,这种方法具有较低的计算时间比目前可用的三维均匀化的H制定。该方法首先验证对测量和二维轴对称的解决方案。然后,它被用来估计损耗和研究跑道线圈的电磁行为。

英文摘要:

The estimation of losses in high-temperature superconductors (HTS) is fundamental during the design of superconducting devices since losses can strongly influence the cooling system requirements and operating temperature. Typically, 2D finite element analysis is used to calculate AC losses in HTS, due to the lack of analytical solutions that can accurately represent complex operating conditions such as AC transport current and AC external applied magnetic field in coils. These 2D models are usually a representation of an infinitely long arrangement. Therefore, they cannot be used to analyze end effects and complex 3D configurations. In this publication, we use the T-A homogenization in 3D for the analysis of superconducting coils. This allows simulating complex geometries such as racetrack coils. We show that this approach has lower computation time than the currently available 3D homogenization of the H formulation. The approach is first validated against measurements and 2D axisymmetric solutions. Then, it is used to estimate losses and study the electromagnetic behavior of a racetrack coil.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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