Investigation about the effects of metal-clad winding on the electromagnetic characteristics of the GdBCO racetrack coils in a time-varying magnetic field

J. M. Kim, J. C. Kim, Y. G. Kim, S. J. Hong, S. J. Park, J. H. Kim, H. M. Kim, Y. S. Choi, Haigun Lee

Research output: Contribution to journalArticle

Abstract

In this study, the electromagnetic characteristics of the insulated (INS), non-insulated (NI), and metal-clad (MC) racetrack coils are examined in a time-varying magnetic field. The delay in the generation of induced current and the amount of induced current when the coils are exposed to the time-varying magnetic field have been thoroughly examined. Additionally, the electromagnetic stability of each test coil was investigated under an overcurrent condition in the presence of an external magnetic ripple field. We also performed an AC loss test to investigate the effects of an MC layer on the magnitude of the AC loss. Based on the test results, the feasibility of using an MC winding technique for developing a highly stable high-temperature superconducting wind turbine generator with an enhanced electromagnetic response was thoroughly examined

Original languageEnglish
Pages (from-to)400-405
Number of pages6
JournalResults in Physics
Volume11
DOIs
Publication statusPublished - 2018 Dec 1

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coils
electromagnetism
alternating current
magnetic fields
metals
wind turbines
ripples
generators

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Investigation about the effects of metal-clad winding on the electromagnetic characteristics of the GdBCO racetrack coils in a time-varying magnetic field. / Kim, J. M.; Kim, J. C.; Kim, Y. G.; Hong, S. J.; Park, S. J.; Kim, J. H.; Kim, H. M.; Choi, Y. S.; Lee, Haigun.

In: Results in Physics, Vol. 11, 01.12.2018, p. 400-405.

Research output: Contribution to journalArticle

Kim, J. M. ; Kim, J. C. ; Kim, Y. G. ; Hong, S. J. ; Park, S. J. ; Kim, J. H. ; Kim, H. M. ; Choi, Y. S. ; Lee, Haigun. / Investigation about the effects of metal-clad winding on the electromagnetic characteristics of the GdBCO racetrack coils in a time-varying magnetic field. In: Results in Physics. 2018 ; Vol. 11. pp. 400-405.
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AU - Hong, S. J.

AU - Park, S. J.

AU - Kim, J. H.

AU - Kim, H. M.

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AU - Lee, Haigun

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AB - In this study, the electromagnetic characteristics of the insulated (INS), non-insulated (NI), and metal-clad (MC) racetrack coils are examined in a time-varying magnetic field. The delay in the generation of induced current and the amount of induced current when the coils are exposed to the time-varying magnetic field have been thoroughly examined. Additionally, the electromagnetic stability of each test coil was investigated under an overcurrent condition in the presence of an external magnetic ripple field. We also performed an AC loss test to investigate the effects of an MC layer on the magnitude of the AC loss. Based on the test results, the feasibility of using an MC winding technique for developing a highly stable high-temperature superconducting wind turbine generator with an enhanced electromagnetic response was thoroughly examined

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