Optimal Placement of Unified Power Flow Controller for Power System Stability
DOI:
https://doi.org/10.18486/ijcsnt/3.1.040Keywords:
FACTS, UPFC, Voltage Stability Margin, Sensitivity Based Approach, Optimal PlacementAbstract
Recently Flexible AC Transmission System (FACTS) Controller has created new opportunities for increasing power system stability including voltage stability. Due to excessive cost, these devices must be located optimally. For the last few years, the focus of research in the FACTS area is mainly on Unified Power Flow Controller (UPFC). It is only Facts Controller having the unique ability to simultaneously control all three parameters of power flow i.e. voltage, line impedance and phase angle. This paper presents a method for optimal location of UPFC to enhance the system voltage stability margin of the power system. The suitable location of the UPFC is identified using a sensitivity-based approach. The effectiveness of the proposed method, simulation has been performed on bench mark 5-bus and IEEE-30 bus power system.
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