Design and Construction of a 20-T 30-mm All HTS Conduction-Cooled User Magnet
- 22 January 2024
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Applied Superconductivity
- Vol. 34 (3) , 1-5
Abstract
A 20 T all REBCO conduction-cooled user magnet project is underway by Institute of Plasma Physics, Chinese Academy of Sciences (ASIPP). The REBCO magnet with no-insulation (NI) winding technique has the inner and outer winding diameters of 30 mm and 103.98 mm, respectively, and the diameter of the cold-bore is 22 mm. It consists of a stack of 10 double pancake (DP) coils wound with two different width REBCO tapes, the width of REBCO tape used for the two end double pancake is 6 mm, and the remaining DP coils is 4 mm. The operating current of the magnet is 224 A at 10 K. The inductance, maximum hoop stress and deflection angle between the conductor and z-axis are 1.57 H, 583 MPa and 1.41°, respectively. The magnetic field distortion and local stress concentration caused by screening current have been carefully considered. In addition, the electromagnetic design and parameter optimization, mechanical analysis, construction and preliminary test results of DP coils are specially discussed in this article.Keywords
Funding Information
- Comprehensive Research Facility for Fusion Technology Program (2018-000052-73-01-001228)
- Institute of Energy, Hefei Comprehensive National Science Center (21KZS207)
This publication has 20 references indexed in Scilit:
- Screening current induced magnetic field and stress in ultra-high-field magnets using REBCO coated conductorsSuperconductor Science and Technology, 2021
- World record 32.35 tesla direct-current magnetic field generated with an all-superconducting magnetSuperconductor Science and Technology, 2020
- Magnetization and screening current in an 800 MHz (18.8 T) REBCO nuclear magnetic resonance insert magnet: experimental results and numerical analysisSuperconductor Science and Technology, 2019
- 45.5-tesla direct-current magnetic field generated with a high-temperature superconducting magnetNature, 2019
- Real-time simulation of large-scale HTS systems: multi-scale and homogeneous models using the T–A formulationSuperconductor Science and Technology, 2019
- A review of commercial high temperature superconducting materials for large magnets: from wires and tapes to cables and conductorsSuperconductor Science and Technology, 2019
- A finite element model for simulating second generation high temperature superconducting coils/stacks with large number of turnsJournal of Applied Physics, 2017
- Design and performance estimation of a 35 T 40 mm no-insulation all-REBCO user magnetSuperconductor Science and Technology, 2017
- 26 T 35 mm all-GdBa2Cu3O7–xmulti-width no-insulation superconducting magnetSuperconductor Science and Technology, 2016
- Winding strain analysis for YBCO coated conductorsSuperconductor Science and Technology, 2010