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초록
In this paper, a voltage sag is analyzed in case of superconducting fault current limiter (SFCL) installed inpower distribution system where replaces the main power transformer to large one to meet the power demand. First, thepower system is configurated to analyze the operation characteristics of the protective relay with replacement of the maintransformer and application of the SFCL. Next, the method to meet the protection coordination is analyzed with largetransformer using PSCAD/EMTDC. Finally, the bus voltage is investigated according to the impedance of both maintransformer and SFCL in case that the SFCL is applied into feeder.
키워드
Superconducting fault current limiter; Power distribution system; Large transformer; Protective coordination; Voltage quality
- 제목
- 배전계통에 대용량변압기 교체 적용시 초전도 한류기의 임피던스에 따른 순간전압 분석
- 제목 (타언어)
- Analysis on Voltage Sag in Power Distribution System according to SFCL's Impedance for Protective Coordination with Large Transformer
- 저자
- 김진석; 문종필
- 발행일
- 2014-12
- 저널명
- 전기학회 논문지 P권
- 권
- 63
- 호
- 4
- 페이지
- 312 ~ 316