High-temperature superconducting (HTS) transformer-rectifier flux pump for powering no-insulation superconducting magnet with low characteristic resistance

Jun Ma, Jianzhao Geng, James Gawith, Tim Coombs

Research output: Contribution to journalArticlepeer-review

17 Citations (SciVal)

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 languageEnglish
Pages (from-to)1-6
Number of pages6
JournalPhysica C: Superconductivity and its Applications
Volume560
DOIs
Publication statusPublished - 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

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