AC Losses in HTS Coils of Superferric Dipole and Combined-Function Magnets

A three-dimensional electromagnetic field analysis model was developed to estimate ac losses in high-temperature superconductor (HTS) coils composing superferric magnets for rapid-cycling synchrotrons. The influence of magnetized iron yokes in the superferric magnets on distributions of magnetic flu...

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Bibliographic Details
Published in:IEEE transactions on applied superconductivity 2019-08, Vol.29 (5), p.1-5
Main Authors: Sogabe, Yusuke, Yasunaga, Masahiro, Fuwa, Yasuhiro, Kuriyama, Yasutoshi, Uesugi, Tomonori, Ishi, Yoshihiro, Amemiya, Naoyuki
Format: Article
Language:English
Subjects:
AC loss
coated conductor
Coils
Core loss
Density distribution
Dipoles
electromagnetic field analysis
Electromagnetic fields
Flux density
High temperature superconductors
Iron
Magnetic flux
Magnetic noise
Magnetic separation
Magnetic shielding
Magnetism
Magnets
rapid-cycling synchrotron
Superconducting magnets
superferric magnet
Synchrotrons
Three dimensional analysis
Three dimensional models
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Summary:A three-dimensional electromagnetic field analysis model was developed to estimate ac losses in high-temperature superconductor (HTS) coils composing superferric magnets for rapid-cycling synchrotrons. The influence of magnetized iron yokes in the superferric magnets on distributions of magnetic flux density in HTS coils was considered as externally applied magnetic flux density to HTS coils in the analysis model. We carried out the ac loss calculations using the models for two superferric magnets having different iron core and HTS coil geometries. The ac loss density distribution in the HTS coils and overall ac losses of the superferric magnets were compared.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2019.2895861