A novel no-insulation winding technique of high temperature-superconducting racetrack coil for rotating applications: A progress report in Korea university
- Authors
- Choi, Y. H.; Song, J. B.; Yang, D. G.; Kim, Y. G.; Hahn, S.; Lee, H. G.
- Issue Date
- 10월-2016
- Publisher
- AMER INST PHYSICS
- Citation
- REVIEW OF SCIENTIFIC INSTRUMENTS, v.87, no.10
- Indexed
- SCIE
SCOPUS
- Journal Title
- REVIEW OF SCIENTIFIC INSTRUMENTS
- Volume
- 87
- Number
- 10
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/87423
- DOI
- 10.1063/1.4963680
- ISSN
- 0034-6748
- Abstract
- This paper presents our recent progress on core technology development for a megawatt-class superconducting wind turbine generator supported by the international collaborative R&D program of the Korea Institute of Energy Technology Evaluation and Planning. To outperform the current high-temperature-superconducting (HTS) magnet technology in the wind turbine industry, a novel no-insulation winding technique was first proposed to develop the second-generation HTS racetrack coil for rotating applications. Here, we briefly report our recent studies on no-insulation (NI) winding technique for GdBCO coated conductor racetrack coils in the following areas: (1) Charging-discharging characteristics of no-insulation GdBCO racetrack coils with respect to external pressures applied to straight sections; (2) thermal and electrical stabilities of no-insulation GdBCO racetrack coils encapsulated with various impregnating materials; (3) quench behaviors of no-insulation racetrack coils wound with GdBCO conductor possessing various lamination layers; (4) electromagnetic characteristics of no-insulation GdBCO racetrack coils under time-varying field conditions. Test results confirmed that this novel NI winding technique was highly promising. It could provide development of a compact, mechanically dense, and self-protecting GdBCO magnet for use in real-world superconducting wind turbine generators. Published by AIP Publishing.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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