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Modeling and Analysis of Distributed Power- Flow Controller (DPFC)



Flexible ac Transmission Systems (FACTS) devices are used to control power flow in the transmission grid to relieve congestion and limit loop flows. High cost and reliability concerns have limited the widespread deployment of FACTS solutions. The present paper describes the steady-state response and control of power in Transmission line equipped with FACTS devices. Detailed simulations are carried out on two- machine systems to illustrate the control features of these devices and their influence to increase power transfer capability and improve system Reliability. The DPFC can be considered as a UPFC with an eliminated common dc link. The active power exchange between the shunt and series converters, which is through the common dc link in the UPFC, is now through the transmission lines at the third-harmonic frequency. Index Terms—FACTS,DPFC, device modeling, power transmission AC–DC power conversion, power semiconductor devices, power system control, power-transmission control. 1

Year: 2014
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