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Operating characteristics of a superconducting fault current limiting transformer (SFCLT) and enhancement of electric power system stability
Author(s) -
Kagawa Hiroaki,
Hayakawa Naoki,
Kashima Naoji,
Nagaya Shigeo,
Okubo Hitoshi
Publication year - 2002
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.10070
Subject(s) - transformer , emtp , electric power system , overvoltage , limiting , electrical engineering , superconductivity , fault (geology) , transmission system , current limiting , fault current limiter , engineering , voltage , power (physics) , physics , transmission (telecommunications) , mechanical engineering , condensed matter physics , quantum mechanics , seismology , geology
We have been investigating the feasibility of a superconducting fault current limiting transformer (SFCLT) with the functions of fault current suppression and system stability improvement. This paper discusses these functions with consideration of overvoltage and thermal characteristics of SFCLT, and their dependence on recovery time into superconducting state after the quench of SFCLT. Simulation results using EMTP suggested that SFCLT would be coordinated with the background power system under the appropriate superconducting recovery time. The operating parameters of SFCLT were also optimized in a simplified power transmission model system. © 2002 Wiley Periodicals, Inc. Electr Eng Jpn, 142(2): 40–47, 2003; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10070