用积分和有限元方法评估三维CORC带的磁化损耗

IF 1.7 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2025-02-20 DOI:10.1109/TASC.2025.3544512

Francesco Lucchini

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引用次数: 0

摘要

圆芯（CORC）导体的复杂电磁行为，加上超导带的高纵横比和REBCO层的微尺度厚度，需要强大的三维数值工具。本文比较了用三维有限元法和积分方程法分析钢芯电缆超导带的磁化损耗。具体而言，最先进的FEM公式，包括$H$, $H-\varphi _{m}$和$T-A$方法，都是基于基于表面的IEM方法的基准。研究了这些方法的数值实现策略、计算效率和性能，强调了它们在解决交流损耗等关键现象方面的优势和局限性。

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Evaluating Magnetization Losses in 3-D CORC Tapes With Integral and Finite-Element Methods

The complex electromagnetic behavior of conductor on round core (CORC), compounded by the high aspect ratio of superconducting tapes and the microscale thickness of REBCO layers, necessitates robust 3-D numerical tools. This article compares 3-D finite-element methods (FEMs) and integral equation methods (IEMs) for analyzing magnetization losses in superconducting tapes of CORC cables. Specifically, state-of-the-art FEM formulations, including the

$H$

$H-\varphi _{m}$

, and

$T-A$

methods, are benchmarked against a surface-based IEM approach. The numerical implementation strategies, computational efficiency, and performance of these methods are examined, emphasizing their strengths and limitations in addressing critical phenomena such as ac losses.

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.