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

동기좌표계를 이용한 교류 전기철도용 단상 UPQC

  • 박한얼 (서울산업대학교 철도전문대학원) ;
  • 강옥구 (서울산업대학교 철도전문대학원) ;
  • 장우진 (서울산업대학교 전기공학과) ;
  • 송화창 (서울산업대학교 전기공학과) ;
  • 송중호 (서울산업대학교 전기공학과)
  • Published : 2009.10.30


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.


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