A new quench protection system using dual-capacitor switching for fast energy extraction from HTS magnets

Yojong Choi, Woo Seung Lee, Seunghyun Song, Haeryong Jeon, Tae Kuk Ko

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The higherature superconducting magnets with high magnetic field can store a relatively large amount of energy because of their large inductance and operating current. The magnetic energy stored in the magnet is converted into heat energy when a quench occurs, and the heat generated by the quench resistance and magnet current is sufficient to damage the magnet. Therefore, the large amount of energy stored in a superconducting magnet must be removed quickly to protect the magnet. In this paper, a new quench protection method using a capacitor and dual-switches is proposed and compared to a conventional energy extraction system that uses only a dump resistor. The simulation and test results show that this new protection system is a feasible method for reducing the temperature increase by rapidly reducing the magnet current when a quench occurs.

Original languageEnglish
Article number8691554
JournalIEEE Transactions on Applied Superconductivity
Volume29
Issue number5
DOIs
Publication statusPublished - 2019 Aug

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'A new quench protection system using dual-capacitor switching for fast energy extraction from HTS magnets'. Together they form a unique fingerprint.

  • Cite this