A study on characteristics of the trapped magnetic field for HTS bulk superconducting actuator operated in AC

Seok Beom Kim, Y. Uwani, J. H. Joo, R. Kawamoto

Research output: Contribution to journalArticle

Abstract

The electric device applications of a high temperature superconducting (HTS) bulk magnet, having stable levitation and suspension properties according to their strong flux pinning force, have been proposed and developed. We have been investigating a three-dimensional (3-D) superconducting actuator using HTS bulks to develop a non-contact transportation device which moves freely in space. In our previous work, the unstable movement characteristics of HTS bulk were observed under DC operation, and the AC control system was proposed in order to solve these problems. In this paper, the horizontal movement and the field decay characteristics as a function of the gap length between electromagnet and HTS bulk and the frequency of driving current were investigated experimentally.

Original languageEnglish
Article number4700304
JournalIEEE Transactions on Applied Superconductivity
Volume22
Issue number3
DOIs
Publication statusPublished - 2012

Fingerprint

trapped magnetic fields
alternating current
Actuators
actuators
Magnetic fields
Flux pinning
Temperature
Electromagnets
electromagnets
levitation
flux pinning
Magnets
Suspensions
magnets
direct current
Control systems
decay

Keywords

  • Field decay
  • HTS bulk mover
  • superconducting actuator
  • trapped magnetic field

ASJC Scopus subject areas

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

Cite this

A study on characteristics of the trapped magnetic field for HTS bulk superconducting actuator operated in AC. / Kim, Seok Beom; Uwani, Y.; Joo, J. H.; Kawamoto, R.

In: IEEE Transactions on Applied Superconductivity, Vol. 22, No. 3, 4700304, 2012.

Research output: Contribution to journalArticle

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