Experimental Study and Frequency Domain Analysis on Metal-Insulation HTS Coil

Geonyoung Kim; Seong Hyeon Park; Jeseok Bang; Chaemin Im; Jaemin Kim; Jonghoon Yoon; Ki Jin Han; So Noguchi; Seungyong Hahn

doi:10.1109/TASC.2022.3141966

Experimental Study and Frequency Domain Analysis on Metal-Insulation HTS Coil

Geonyoung Kim, Seong Hyeon Park, Jeseok Bang, Chaemin Im, Jaemin Kim, Jonghoon Yoon, Ki Jin Han, So Noguchi, Seungyong Hahn

Department of Electronics & Electrical Engineering

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

This work reports a frequency domain analysis on alternating current (AC) response of a metal-insulation (MI) high temperature superconducting (HTS) coil. An 85-turn MI test coil was wound and operated in a liquid nitrogen bath at 77 K. Sinusoidal current was applied to the test coil to measure the AC responses. The test coil's total voltage and the central magnetic field were measured from 0.01 Hz to 5 Hz. The phase difference between the total voltage and the azimuthal current was calculated from the measured data. To explain the phase difference between the total voltage and the azimuthal current, the additional frequency-dependent resistive component was adopted. The results demonstrate that the discrepancy between the measurement and the simulation results from the lumped-circuit model tends to increase with frequency.

Original language	English
Journal	IEEE Transactions on Applied Superconductivity
Volume	32
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2022.3141966
State	Published - 1 Jun 2022

Keywords

AC loss
frequency domain analysis
lumped-circuit model
metal-insulation winding

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10.1109/TASC.2022.3141966

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title = "Experimental Study and Frequency Domain Analysis on Metal-Insulation HTS Coil",

abstract = "This work reports a frequency domain analysis on alternating current (AC) response of a metal-insulation (MI) high temperature superconducting (HTS) coil. An 85-turn MI test coil was wound and operated in a liquid nitrogen bath at 77 K. Sinusoidal current was applied to the test coil to measure the AC responses. The test coil's total voltage and the central magnetic field were measured from 0.01 Hz to 5 Hz. The phase difference between the total voltage and the azimuthal current was calculated from the measured data. To explain the phase difference between the total voltage and the azimuthal current, the additional frequency-dependent resistive component was adopted. The results demonstrate that the discrepancy between the measurement and the simulation results from the lumped-circuit model tends to increase with frequency.",

keywords = "AC loss, frequency domain analysis, lumped-circuit model, metal-insulation winding",

author = "Geonyoung Kim and Park, {Seong Hyeon} and Jeseok Bang and Chaemin Im and Jaemin Kim and Jonghoon Yoon and Han, {Ki Jin} and So Noguchi and Seungyong Hahn",

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AU - Kim, Geonyoung

AU - Park, Seong Hyeon

AU - Bang, Jeseok

AU - Im, Chaemin

AU - Kim, Jaemin

AU - Yoon, Jonghoon

AU - Han, Ki Jin

AU - Noguchi, So

AU - Hahn, Seungyong

PY - 2022/6/1

Y1 - 2022/6/1

N2 - This work reports a frequency domain analysis on alternating current (AC) response of a metal-insulation (MI) high temperature superconducting (HTS) coil. An 85-turn MI test coil was wound and operated in a liquid nitrogen bath at 77 K. Sinusoidal current was applied to the test coil to measure the AC responses. The test coil's total voltage and the central magnetic field were measured from 0.01 Hz to 5 Hz. The phase difference between the total voltage and the azimuthal current was calculated from the measured data. To explain the phase difference between the total voltage and the azimuthal current, the additional frequency-dependent resistive component was adopted. The results demonstrate that the discrepancy between the measurement and the simulation results from the lumped-circuit model tends to increase with frequency.

AB - This work reports a frequency domain analysis on alternating current (AC) response of a metal-insulation (MI) high temperature superconducting (HTS) coil. An 85-turn MI test coil was wound and operated in a liquid nitrogen bath at 77 K. Sinusoidal current was applied to the test coil to measure the AC responses. The test coil's total voltage and the central magnetic field were measured from 0.01 Hz to 5 Hz. The phase difference between the total voltage and the azimuthal current was calculated from the measured data. To explain the phase difference between the total voltage and the azimuthal current, the additional frequency-dependent resistive component was adopted. The results demonstrate that the discrepancy between the measurement and the simulation results from the lumped-circuit model tends to increase with frequency.

KW - AC loss

KW - frequency domain analysis

KW - lumped-circuit model

KW - metal-insulation winding

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DO - 10.1109/TASC.2022.3141966

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VL - 32

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

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Experimental Study and Frequency Domain Analysis on Metal-Insulation HTS Coil

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Keywords

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