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변전소 전압안정화를 위한 STATCOM과 기존 조상 설비간의 지역 무효전력 협조제어에 관한 연구
정기석(Ki-Seok Jeong),장병훈(Byun-Hoon Chang),이현철(Hyun-Chul Lee),이근준(Geun-Joon Lee),백영식(Young-Sik Baek) 대한전기학회 2010 전기학회논문지 Vol.59 No.3
Installation of FACTS(Flexible AC Transmission System) device can maximize utilization of existing power facilities and reliability of power system. STATCOM has excellent characteristics in operating cost, maintaining facilities, loss and so on. However, STATCOM has a disadvantage of facility cost over capacity. So it is effective to coordinate STATCOM and existing external bank(capacitor and reactor) and OLTC(On Load Tap Changer). This paper mainly proposes coordinative control method between STATCOM installed within substation and other reactive power resources including Shunt Reactors and Shunt Capacitors and OLTC for voltage stability improvement. The proposed coordinative control method is developed for the STATCOM of Mi-gum substation and the simulation results of EMTP/RV model show the effectiveness of the proposed method.