3D Numerical Studies of a Radial-Type Superconducting Magnetic Bearing Consisting of HTS Coils and PM

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

IEEE Transactions on Applied Superconductivity Pub Date : 2025-03-06 DOI:10.1109/TASC.2025.3544616

Qi Xu;Yi Lin;Ruixiang Wang;Changhao Hu;Jianzhao Geng

引用次数: 0

Abstract

High temperature superconducting (HTS) coils have promising applications in superconducting magnetic bearings (SMB). In this paper, we designed a radial-type SMB consists of permanent magnet (PM) rotor and HTS coil stator. The internal rotor is a Halbach array of PM and iron sheet. The external stator consists of two closed double pancake HTS coils connected in series and an open-loop coil. A three-dimensional (3D) finite element model was established to analyze the levitation force and radial stability of the proposed SMB. The results indicate that the SMB can support load of 4613 N under 120 A current. The SMB exhibits an axial stiffness of 911 N/mm and a radial stiffness of 435 N/mm, with stiffness decreasing as the coil current increases. This work contributes to exploring the potential of HTS coils in bearing applications and guides the design of SMB.

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由高温超导线圈和永磁材料组成的径向超导磁轴承的三维数值研究

高温超导线圈在超导磁轴承（SMB）中有着广阔的应用前景。本文设计了一种由永磁转子和高温超导线圈定子组成的辐射式永磁电机。内部转子是一个哈尔巴赫阵列的PM和铁片。外部定子由两个串联的闭合双煎饼高温超导线圈和一个开环线圈组成。建立了三维有限元模型，分析了所提出的SMB的悬浮力和径向稳定性。结果表明，在120a电流下，SMB可支持4613n的负载。SMB的轴向刚度为911 N/mm，径向刚度为435 N/mm，刚度随线圈电流的增大而减小。这项工作有助于探索高温超导线圈在轴承应用中的潜力，并指导SMB的设计。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.