A novel no-insulation winding technique of high temperature-superconducting racetrack coil for rotating applications: A progress report in Korea university

Y. H. Choi, J. B. Song, D. G. Yang, Y. G. Kim, S. Hahn, Haigun Lee

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish
Article number104704
JournalReview of Scientific Instruments
Volume87
Issue number10
DOIs
Publication statusPublished - 2016 Oct 1

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Korea
insulation
Insulation
coils
wind turbines
Wind turbines
Temperature
Turbogenerators
generators
conductors
energy technology
impregnating
Superconducting magnets
superconducting magnets
Superconducting coils
laminates
Magnets
charging
planning
thermal stability

ASJC Scopus subject areas

  • Instrumentation

Cite this

A novel no-insulation winding technique of high temperature-superconducting racetrack coil for rotating applications : A progress report in Korea university. / Choi, Y. H.; Song, J. B.; Yang, D. G.; Kim, Y. G.; Hahn, S.; Lee, Haigun.

In: Review of Scientific Instruments, Vol. 87, No. 10, 104704, 01.10.2016.

Research output: Contribution to journalArticle

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