Study on elimination of screening-current-induced field in pancake-type non-insulated HTS coil
- Authors
- Kim, K. L.; Song, J. B.; Yang, D. G.; Kim, Y. G.; Kim, T. H.; Kim, S. K.; Park, M. W.; Lee, H. G.
- Issue Date
- 3월-2016
- Publisher
- IOP PUBLISHING LTD
- Keywords
- no-insulation; pancake coil; high temperature superconductor; screening current induced field
- Citation
- SUPERCONDUCTOR SCIENCE & TECHNOLOGY, v.29, no.3
- Indexed
- SCIE
SCOPUS
- Journal Title
- SUPERCONDUCTOR SCIENCE & TECHNOLOGY
- Volume
- 29
- Number
- 3
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/89400
- DOI
- 10.1088/0953-2048/29/3/035009
- ISSN
- 0953-2048
- Abstract
- This paper presents the details of a recent study on the removal of the screening-current-induced field (SCIF) in a pancake-type non-insulated high-temperature superconductor coil (NI coil). To determine the SCIF in the NI coil, the magnetic flux density (B-z) was calculated using the equivalent circuit model of the coil and compared to the B-z obtained empirically. The experimental results indicate that the SCIF elimination in the NI coil was enhanced upon increasing the amplitude and frequency of the AC current being supplied to the background coil. Moreover, the SCIF in the NI coil was successfully removed by applying the appropriate external AC magnetic field intensity. This is because the magnetization direction of the SCIF changed completely from radial to spiral, a phenomenon termed the 'vortex shaking effect.' Overall, this study confirmed that the SCIF in a pancake-type NI coil can be effectively removed by exposing the coil to an external AC magnetic field.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.