Abstract
No-Insulation (NI) superconducting magnets have gained much popularity since they have higher engineering current density and better stability. Charging an NI coil with a low characteristic resistance (R c ), however, becomes problematic, because the low R c limits the power supply voltage and make the charging extremely slow. Flux pumps can inject flux into closed high-T c superconducting magnets without electrical contact, making it possible to maintain a quasi-constant field in the magnet with insignificant losses. In this paper, we propose and examine new methods to speed up charging the low R c NI coil using a transformer-rectifier type flux pump. We will show that the flux pump has improved performance compared to an external power supply in charging the NI coil.
Original language | English |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 560 |
DOIs | |
Publication status | Published - 15 May 2019 |
Bibliographical note
Publisher Copyright:© 2019
Keywords
- HTS flux pump
- HTS magnets
- Low Characteristic Resistance
- No-insulation magnets
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering