Characteristic resistance of no-insulation and partial-insulation coils with nonuniform current distribution

Dong Gyu Yang, Seungyong Hahn, Youngjae Kim, Kwang Lok Kim, Jung Bin Song, Juan Bascuñán, Haigun Lee, Yukikazu Iwasa

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

This paper proposes a numerical approach to calculate the characteristic resistance (Rc) of partial-insulation (PI) and no-insulation (NI) high-temperature superconductor pancake coils with the nonuniform current path in such coils taken into consideration. Recently, an analytic approach has been proposed to estimate (Rc) of an NI coil, where the coil current is assumed to be "uniform" over the entire coil. This model, however, is not effective to explain the increase of (Rc) when a coil is modified from NI to PI. In this paper, we first introduce our numerical approach based on a finite element analysis. Then, the charging characteristics of selected PI and NI coils that we had previously reported are analyzed by the proposed approach. Reasonable agreement between themeasured and calculated data validates the proposed approach to estimate (Rc) of a PI as well as an NI coil.

Original languageEnglish
Article number6626558
JournalIEEE Transactions on Applied Superconductivity
Volume24
Issue number3
DOIs
Publication statusPublished - 2014

Fingerprint

current distribution
insulation
Insulation
coils
High temperature superconductors
estimates
high temperature superconductors
charging
Finite element method

Keywords

  • Characteristic resistance
  • Finite element method (FEM)
  • No-insulation (NI)
  • Nonuniform current
  • Partial-insulation (PI)

ASJC Scopus subject areas

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

Cite this

Characteristic resistance of no-insulation and partial-insulation coils with nonuniform current distribution. / Yang, Dong Gyu; Hahn, Seungyong; Kim, Youngjae; Kim, Kwang Lok; Song, Jung Bin; Bascuñán, Juan; Lee, Haigun; Iwasa, Yukikazu.

In: IEEE Transactions on Applied Superconductivity, Vol. 24, No. 3, 6626558, 2014.

Research output: Contribution to journalArticle

Yang, Dong Gyu ; Hahn, Seungyong ; Kim, Youngjae ; Kim, Kwang Lok ; Song, Jung Bin ; Bascuñán, Juan ; Lee, Haigun ; Iwasa, Yukikazu. / Characteristic resistance of no-insulation and partial-insulation coils with nonuniform current distribution. In: IEEE Transactions on Applied Superconductivity. 2014 ; Vol. 24, No. 3.
@article{bc25a1388aaf40e1b53475deaf655ae5,
title = "Characteristic resistance of no-insulation and partial-insulation coils with nonuniform current distribution",
abstract = "This paper proposes a numerical approach to calculate the characteristic resistance (Rc) of partial-insulation (PI) and no-insulation (NI) high-temperature superconductor pancake coils with the nonuniform current path in such coils taken into consideration. Recently, an analytic approach has been proposed to estimate (Rc) of an NI coil, where the coil current is assumed to be {"}uniform{"} over the entire coil. This model, however, is not effective to explain the increase of (Rc) when a coil is modified from NI to PI. In this paper, we first introduce our numerical approach based on a finite element analysis. Then, the charging characteristics of selected PI and NI coils that we had previously reported are analyzed by the proposed approach. Reasonable agreement between themeasured and calculated data validates the proposed approach to estimate (Rc) of a PI as well as an NI coil.",
keywords = "Characteristic resistance, Finite element method (FEM), No-insulation (NI), Nonuniform current, Partial-insulation (PI)",
author = "Yang, {Dong Gyu} and Seungyong Hahn and Youngjae Kim and Kim, {Kwang Lok} and Song, {Jung Bin} and Juan Bascu{\~n}{\'a}n and Haigun Lee and Yukikazu Iwasa",
year = "2014",
doi = "10.1109/TASC.2013.2285103",
language = "English",
volume = "24",
journal = "IEEE Transactions on Applied Superconductivity",
issn = "1051-8223",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "3",

}

TY - JOUR

T1 - Characteristic resistance of no-insulation and partial-insulation coils with nonuniform current distribution

AU - Yang, Dong Gyu

AU - Hahn, Seungyong

AU - Kim, Youngjae

AU - Kim, Kwang Lok

AU - Song, Jung Bin

AU - Bascuñán, Juan

AU - Lee, Haigun

AU - Iwasa, Yukikazu

PY - 2014

Y1 - 2014

N2 - This paper proposes a numerical approach to calculate the characteristic resistance (Rc) of partial-insulation (PI) and no-insulation (NI) high-temperature superconductor pancake coils with the nonuniform current path in such coils taken into consideration. Recently, an analytic approach has been proposed to estimate (Rc) of an NI coil, where the coil current is assumed to be "uniform" over the entire coil. This model, however, is not effective to explain the increase of (Rc) when a coil is modified from NI to PI. In this paper, we first introduce our numerical approach based on a finite element analysis. Then, the charging characteristics of selected PI and NI coils that we had previously reported are analyzed by the proposed approach. Reasonable agreement between themeasured and calculated data validates the proposed approach to estimate (Rc) of a PI as well as an NI coil.

AB - This paper proposes a numerical approach to calculate the characteristic resistance (Rc) of partial-insulation (PI) and no-insulation (NI) high-temperature superconductor pancake coils with the nonuniform current path in such coils taken into consideration. Recently, an analytic approach has been proposed to estimate (Rc) of an NI coil, where the coil current is assumed to be "uniform" over the entire coil. This model, however, is not effective to explain the increase of (Rc) when a coil is modified from NI to PI. In this paper, we first introduce our numerical approach based on a finite element analysis. Then, the charging characteristics of selected PI and NI coils that we had previously reported are analyzed by the proposed approach. Reasonable agreement between themeasured and calculated data validates the proposed approach to estimate (Rc) of a PI as well as an NI coil.

KW - Characteristic resistance

KW - Finite element method (FEM)

KW - No-insulation (NI)

KW - Nonuniform current

KW - Partial-insulation (PI)

UR - http://www.scopus.com/inward/record.url?scp=84991706016&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84991706016&partnerID=8YFLogxK

U2 - 10.1109/TASC.2013.2285103

DO - 10.1109/TASC.2013.2285103

M3 - Article

AN - SCOPUS:84991706016

VL - 24

JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

SN - 1051-8223

IS - 3

M1 - 6626558

ER -