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A Synchronous-Reference-Frame-Based Single-Phase UPQC for AC Electrified Railway Systems  

Park, Han-Eol (서울산업대학교 철도전문대학원)
Kang, Ok-Ku (서울산업대학교 철도전문대학원)
Jang, Woo-Jin (서울산업대학교 전기공학과)
Song, Hwa-Chang (서울산업대학교 전기공학과)
Song, Joong-Ho (서울산업대학교 전기공학과)
Publication Information
Journal of the Korean Society for Railway / v.12, no.5, 2009 , pp. 694-699 More about this Journal
Abstract
This paper presents a synchronous-reference-frame-based control of single-phase UPQC(Unified Power Quality Conditioner) to improve power quality in ac electrified railway systems. The proposed synchronous-reference-frame-based UPQC can compensate the voltage distortion, the voltage sag, the harmonic currents, and the reactive power instantaneously. The simulation results show that the UPQC can compensate the harmonic supply voltages, the voltage sag, the harmonic load currents, and the reactive power in electrified railway systems. Validity and effectiveness of the proposed UPQC control method based on the synchronous-reference-frame is illustrated through the simulation results.
Keywords
UPQC; power quality; AC electrified railway;
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