Analysis of the current charge and discharge characteristics of a small-scale turn-to-turn soldered HTS coil

Woo Seung Lee, Jiho Lee, Seunghyun Song, Young Gun Park, Hongwoo Jin, Seungyong Hahn, Min Cheol Ahn, Tae Kuk Ko

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A semipersistent current-mode operation with a high-temperature superconducting (HTS) coil is very useful for some applications, including maglev. An HTS coil for semipersistent mode operation includes at least one residual joint to make a closed-loop coil. A low current decaying rate is achieved by reducing the residual joint resistance. This paper suggests a winding method with a turn-to-turn soldering process. The turn-to-turn soldering process provides a wide flow path for the charged current in the HTS coil during the semipersistent mode operation. Therefore, the total equivalent residual resistance is reduced. However, this reduced residual resistance also prevents the current from participating in the charging process. Therefore, a new current charging method for the turn-to-turn soldered HTS coil needs to be tested. In this paper, a small-scale sample HTS coil with turn-to-turn soldering method is fabricated for testing. A simple charging-discharging experiment is performed on the sample coil. The time constant of the sample coil is calculated from the experimental results. A fast current charging sequence for the turn-to-turn soldered coil is also tested and analyzed from the perspective of power and energy consumption during the current charging operation.

Original languageEnglish
Article number7042729
JournalIEEE Transactions on Applied Superconductivity
Volume25
Issue number3
DOIs
Publication statusPublished - 2015 Jun 1

Fingerprint

coils
Soldering
charging
soldering
Temperature
Electric power utilization
Energy utilization
Superconducting coils
energy consumption
low currents
Testing
time constant
Experiments

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Lee, Woo Seung ; Lee, Jiho ; Song, Seunghyun ; Park, Young Gun ; Jin, Hongwoo ; Hahn, Seungyong ; Ahn, Min Cheol ; Ko, Tae Kuk. / Analysis of the current charge and discharge characteristics of a small-scale turn-to-turn soldered HTS coil. In: IEEE Transactions on Applied Superconductivity. 2015 ; Vol. 25, No. 3.
@article{7c1f1e399d56456bb832eb25e8c1a85a,
title = "Analysis of the current charge and discharge characteristics of a small-scale turn-to-turn soldered HTS coil",
abstract = "A semipersistent current-mode operation with a high-temperature superconducting (HTS) coil is very useful for some applications, including maglev. An HTS coil for semipersistent mode operation includes at least one residual joint to make a closed-loop coil. A low current decaying rate is achieved by reducing the residual joint resistance. This paper suggests a winding method with a turn-to-turn soldering process. The turn-to-turn soldering process provides a wide flow path for the charged current in the HTS coil during the semipersistent mode operation. Therefore, the total equivalent residual resistance is reduced. However, this reduced residual resistance also prevents the current from participating in the charging process. Therefore, a new current charging method for the turn-to-turn soldered HTS coil needs to be tested. In this paper, a small-scale sample HTS coil with turn-to-turn soldering method is fabricated for testing. A simple charging-discharging experiment is performed on the sample coil. The time constant of the sample coil is calculated from the experimental results. A fast current charging sequence for the turn-to-turn soldered coil is also tested and analyzed from the perspective of power and energy consumption during the current charging operation.",
author = "Lee, {Woo Seung} and Jiho Lee and Seunghyun Song and Park, {Young Gun} and Hongwoo Jin and Seungyong Hahn and Ahn, {Min Cheol} and Ko, {Tae Kuk}",
year = "2015",
month = "6",
day = "1",
doi = "10.1109/TASC.2015.2404574",
language = "English",
volume = "25",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",

}

Analysis of the current charge and discharge characteristics of a small-scale turn-to-turn soldered HTS coil. / Lee, Woo Seung; Lee, Jiho; Song, Seunghyun; Park, Young Gun; Jin, Hongwoo; Hahn, Seungyong; Ahn, Min Cheol; Ko, Tae Kuk.

In: IEEE Transactions on Applied Superconductivity, Vol. 25, No. 3, 7042729, 01.06.2015.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Analysis of the current charge and discharge characteristics of a small-scale turn-to-turn soldered HTS coil

AU - Lee, Woo Seung

AU - Lee, Jiho

AU - Song, Seunghyun

AU - Park, Young Gun

AU - Jin, Hongwoo

AU - Hahn, Seungyong

AU - Ahn, Min Cheol

AU - Ko, Tae Kuk

PY - 2015/6/1

Y1 - 2015/6/1

N2 - A semipersistent current-mode operation with a high-temperature superconducting (HTS) coil is very useful for some applications, including maglev. An HTS coil for semipersistent mode operation includes at least one residual joint to make a closed-loop coil. A low current decaying rate is achieved by reducing the residual joint resistance. This paper suggests a winding method with a turn-to-turn soldering process. The turn-to-turn soldering process provides a wide flow path for the charged current in the HTS coil during the semipersistent mode operation. Therefore, the total equivalent residual resistance is reduced. However, this reduced residual resistance also prevents the current from participating in the charging process. Therefore, a new current charging method for the turn-to-turn soldered HTS coil needs to be tested. In this paper, a small-scale sample HTS coil with turn-to-turn soldering method is fabricated for testing. A simple charging-discharging experiment is performed on the sample coil. The time constant of the sample coil is calculated from the experimental results. A fast current charging sequence for the turn-to-turn soldered coil is also tested and analyzed from the perspective of power and energy consumption during the current charging operation.

AB - A semipersistent current-mode operation with a high-temperature superconducting (HTS) coil is very useful for some applications, including maglev. An HTS coil for semipersistent mode operation includes at least one residual joint to make a closed-loop coil. A low current decaying rate is achieved by reducing the residual joint resistance. This paper suggests a winding method with a turn-to-turn soldering process. The turn-to-turn soldering process provides a wide flow path for the charged current in the HTS coil during the semipersistent mode operation. Therefore, the total equivalent residual resistance is reduced. However, this reduced residual resistance also prevents the current from participating in the charging process. Therefore, a new current charging method for the turn-to-turn soldered HTS coil needs to be tested. In this paper, a small-scale sample HTS coil with turn-to-turn soldering method is fabricated for testing. A simple charging-discharging experiment is performed on the sample coil. The time constant of the sample coil is calculated from the experimental results. A fast current charging sequence for the turn-to-turn soldered coil is also tested and analyzed from the perspective of power and energy consumption during the current charging operation.

UR - http://www.scopus.com/inward/record.url?scp=84925061353&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84925061353&partnerID=8YFLogxK

U2 - 10.1109/TASC.2015.2404574

DO - 10.1109/TASC.2015.2404574

M3 - Article

AN - SCOPUS:84925061353

VL - 25

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 3

M1 - 7042729

ER -