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TITLE: Power System Stability Enhancement using The Unified Power Flow Controller | |
Abstract—
With the growing demand of electricity, at times, it is not possible to erect new lines to face the situation. Flexible AC Transmission System (FACTS) uses the thyristor controlled devices and optimally utilizes the existing power network. FACTS devices play an important role in controlling the reactive and active power flow to the power network and hence both the system voltage fluctuations and transient stability. This paper proposes the Unified Power Flow Controller (UPFC) as a power electronic based device that has capability of controlling the power flow through the line by controlling its series and shunt converters, also combined with Distributed Generation (DG) connected in the DC link to mitigate power quality disturbances. The proposed control will enable increased connections of renewable energy sources in the smart grid. The function of the scheme has been investigated the improvement of transient stability and voltage fluctuations of inter-area power system.
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