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UPFC 이상변압기 모델을 사용한 유연송전장치 일차민감도해석
안승원,Thomas W. Gedra 한국마린엔지니어링학회 2004 한국마린엔지니어링학회지 Vol.28 No.5
This paper presents a screening technique for greatly reducing the computation involved in determining the optimal location and types of Flexible AC Transmission System (FACTS) devices in a large power system. The first-order sensitivities of the generation cost for various FACTS devices are derived. This technique requires solving only one optimal power flow (OPF) to obtain sensitivities with respect to FACTS device control variables for every transmission line. To implement a sensitivity-based screening technique, we used a new UPFC model, which consists of an ideal transformer with a complex turns ratio and a variable shunt admittance. A 5-bus system based on the IEEE 14-bus system was used to illustrate the technique.