Analysis of operational characteristics of flux-lock type SFCL combined with power compensator

Author

Lim, Sung-Hun ; Lee, Seong-Ryong ; Choi, Hyo-Sang ; Han, Byoung-Sung

Author_Institution

Res. Center of Ind. Technol., Chonbuk Nat. Univ., Jeonju, South Korea

Volume

15

Issue

2

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

2043

Lastpage

2046

Abstract

The flux-lock type superconducting fault current limiter (SFCL) combined with a power compensator was proposed in this paper. This SFCL consists of a flux-lock reactor and a power compensator. The former, which has coil 1 and coil 2 wound in parallel through high-T_C superconducting (HTSC) element, can perform the fault current limiting operation during a fault period. The latter is composed of a current-controlled inverter and an AC/DC converter between coil 3 and grid, which can be operated as the power compensator for nonlinear load during a normal operation. The specification for a test model was determined and its operational characteristics were analyzed through computer simulation using PSIM program. It was confirmed that the suggested flux-lock type SFCL, combined with the power compensator, could protect the system from over-current by a short circuit accident and compensate the reactive power due to a nonlinear load during a normal operation as well.

Keywords

AC-DC power convertors; fault current limiters; high-temperature superconductors; superconducting coils; AC/DC converter; PSIM program; current-controlled inverter; fault current limiting operation; fault period; flux-lock reactor; flux-lock type SFCL; high-T_C superconducting element; nonlinear load; power compensator; reactive power; short circuit accident; superconducting fault current limiter; Circuit faults; Circuit testing; DC-DC power converters; Fault current limiters; Fault currents; Inductors; Inverters; Superconducting coils; Superconducting transmission lines; Wounds; Current-controlled inverter; fault current limiting operation; flux-lock reactor; flux-lock type superconducting fault current limiter; power compensator;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2005.849447

Filename

1440061