CUED Publications database

Optimization study on the magnetic field of superconducting Halbach Array magnet

Shen, B and Geng, J and Li, C and Zhang, X and Fu, L and Zhang, H and Ma, J and Coombs, TA (2017) Optimization study on the magnetic field of superconducting Halbach Array magnet. Physica C: Superconductivity and its Applications, 538. pp. 46-51. ISSN 0921-4534

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Abstract

© 2017 Elsevier B.V. This paper presents the optimization on the strength and homogeneity of magnetic field from superconducting Halbach Array magnet. Conventional Halbach Array uses a special arrangement of permanent magnets which can generate homogeneous magnetic field. Superconducting Halbach Array utilizes High Temperature Superconductor (HTS) to construct an electromagnet to work below its critical temperature, which performs equivalently to the permanent magnet based Halbach Array. The simulations of superconducting Halbach Array were carried out using H-formulation based on B-dependent critical current density and bulk approximation, with the FEM platform COMSOL Multiphysics. The optimization focused on the coils’ location, as well as the geometry and numbers of coils on the premise of maintaining the total amount of superconductor. Results show Halbach Array configuration based superconducting magnet is able to generate the magnetic field with intensity over 1 Tesla and improved homogeneity using proper optimization methods. Mathematical relation of these optimization parameters with the intensity and homogeneity of magnetic field was developed.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:09
Last Modified: 18 Nov 2017 21:56
DOI: