Thermal and magnetic characteristics of bulk superconductor and performance analysis of magnetic shielding type of superconducting fault current limiter

Hiroshi Ueda, A. Ishiyama, H. Kado, M. Ichikawa

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Superconducting fault current limiter (SCFCL) is expected to be the first application of a high-temperature superconductor (HTS) to electric power systems. We have been developing a magnetic shielding type of SCFCL that uses a cylindrical Bi-2223 HTS bulk. Short-circuit fault tests in a small SCFCL model were performed experimentally. A computer program based on the finite element method (FEM) taking the voltage-current (E-J) characteristics of the bulk material into account was developed to analyze the performance in the short-circuit fault tests and to investigate the dynamic electromagnetic behavior within a bulk superconductor. Because the E-J characteristic of HTS bulk depends on temperature and magnetic field, we investigated experimentally the E-J characteristics of a bulk superconductor in various operating temperatures and magnetic fields. The computer program considering the measured E-J characteristics simulated the electromagnetic behaviors in an SCFCL test model successfully.

Original languageEnglish
Pages (from-to)2402-2405
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume11
Issue number1 II
DOIs
Publication statusPublished - Mar 2001
Externally publishedYes

Fingerprint

Superconducting fault current limiters
Magnetic shielding
magnetic shielding
Superconducting materials
High temperature superconductors
high temperature superconductors
Short circuit currents
short circuits
Computer program listings
Temperature distribution
Magnetic fields
temperature distribution
electromagnetism
computer programs
Electric power systems
electric power
operating temperature
magnetic fields
finite element method
Finite element method

Keywords

  • E-J characteristics
  • Finite element analysis
  • HTS bulk material
  • Magnetic shielding type of superconducting fault current limiter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

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AU - Ichikawa, M.

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