Optimization study on the magnetic field of superconducting Halbach Array magnet
| Autor: | Jun Ma, Boyang Shen, Lin Fu, Jianzhao Geng, Chao Li, Xiuchang Zhang, Tim Coombs, Heng Zhang |
|---|---|
| Přispěvatelé: | Shen, Boyang [0000-0001-8169-6588], Ma, Jun [0000-0001-6232-1254], Coombs, Timothy [0000-0003-0308-1347], Apollo - University of Cambridge Repository |
| Rok vydání: | 2017 |
| Předmět: |
Acoustics
Multiphysics High Temperature Superconductor (HTS) Energy Engineering and Power Technology Superconducting magnet 01 natural sciences law.invention Nuclear magnetic resonance law Condensed Matter::Superconductivity 0103 physical sciences Homogeneity (physics) Electrical and Electronic Engineering 010306 general physics 010302 applied physics Superconductivity Physics Electromagnet Halbach Array Condensed Matter Physics Electronic Optical and Magnetic Materials Magnetic field Halbach array Magnet HTS coils |
| Zdroj: | Physica C: Superconductivity and its Applications. 538:46-51 |
| ISSN: | 0921-4534 |
| DOI: | 10.1016/j.physc.2017.05.009 |
| Popis: | © 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect