Analysis of Distributed Power Flow Controller in Power System Network for Improving Power Flow Control

Kuldeep Saini, Aakash Saxena, M.R. Farooqi

Abstract


In this paper, a new power flow controlling device called Distributed Power Flow Controller (DPFC) is presented that offers the same control capability as the unified power-flow controller (UPFC) but with much lower cost and high reliability. The DPFC eliminates the common DC link within the UPFC, to enable the independent operation of the shunt and the series converter. The D-FACTS concept is employed to the series converter to increase the reliability. Multiple low-rating single-phase converters replace the high-rating three-phase series converter, which significantly reduces the cost and increases the reliability. The active power that is exchanged through the common DC link in the UPFC is now transferred through the transmission line at the 3rd harmonic frequency. The DPFC is modeled in a rotating dq-frame. The modeling and analysis of DPFC in a two area two bus interconnected system is done in MATLAB/Simulink environment and comparison between the DPFC and UPFC considering the power flow and cost are also shown.

 


Keywords


Flexible AC Transmission System, Unified Power Flow Controller, Distributed FACTS, Distributed Power Flow Controller, Power-transmission control.

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DOI: http://doi.org/10.11591/ijeecs.v2.i3.pp510-521

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