Magnetic field calculations including the impact of persistent currents in superconducting filaments

被引：7

作者：

Aleksa, M ^{[1
]}

Russenschuck, S ^{[1
]}

Völlinger, C ^{[1
]}

机构：

[1] CERN, CH-1211 Geneva 23, Switzerland

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 02期

关键词：

bean model; filament magnetization; persistent currents; superconding filaments;

D O I：

10.1109/20.996213

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The magnetic field in the coils of superconducting magnets induces so-called persistent currents in the filaments. Persistent currents are bipolar screening currents that do not decay due to the lack of resistivity. The NbTi-filaments are type II superconductors and can be described by the critical state model. This paper presents an analytical hysteresis model of the filament magnetization due to persistent currents which takes into account the changing magnetic induction inside the filament. This model is combined with numerical field computation methods, taking local saturation effects in the ferromagnetic yoke into consideration.

引用

页码：825 / 828

页数：4

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