A 2-D Finite-Element Model for Electrothermal Transients in Accelerator Magnets

被引：21

作者：

Bortot, L. ^{[1
]}

Auchmann, B. ^{[1
,2
]}

Garcia, I. Cortes ^{[3
]}

Navarro, A. M. Fernandez ^{[1
]}

Maciejewski, M. ^{[1
,4
]}

Prioli, M. ^{[1
]}

Schoeps, S. ^{[3
]}

Verweij, A. P. ^{[1
]}

机构：

[1] CERN, Geneva, Switzerland

[2] Paul Scherrer Inst, Villigen, Switzerland

[3] Tech Univ Darmstadt, Darmstadt, Germany

[4] Lodz Univ Technol, Lodz, Poland

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2018年 / 54卷 / 03期

关键词：

Eddy currents; equivalent magnetization; finite element method; quench; superconducting accelerator magnet; MAGNETIZATION;

D O I：

10.1109/TMAG.2017.2748390

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：

Superconducting accelerator magnets require sophisticated monitoring and means of protection due to the large energy stored in the magnetic field. Numerical simulations play a crucial role in understanding transient phenomena occurring within the magnet, and can, therefore, help to prevent disruptive consequences. We present a 2-D FEM model for the simulation of electrothermal transients occurring in superconducting accelerator magnets. The magnetoquasistatic problem is solved with a modified magnetic vector potential formulation, where the cable eddy currents are resolved in terms of their equivalent magnetization. The heat balance equation is then investigated, and the relevant heat sources are discussed. The model implements a two-port component interface and is resolved, as part of an electrical circuit, in a cooperative simulation scheme with a lumped-parameter network.

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页数：4

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