Paper Details

Increasing demand of power has lead to enhancement of transmission capabiliti es. The work carried out in thispaper is related to development of a new Power flow controlling device that provides same control capability as the UPFCwith decreased cost and increased reliability. This FACTS device named “The Distributed Power Flow Controller” (DPFC)is a further development of the UPFC with an eliminated common d.c link. The transmission lines at 3rd harmonic frequencyare used for active power exchange between shunt and series converters. The DPFC consists of one shunt and several seriesconnected converters. The shunt converter is similar as a STATCOM, while the series converter employs the D-FACTSconcept, which is to use multiple single-phase converters instead of one large rated converter. Each converter within theDPFC is independent and has its own dc capacitor to provide the required dc voltage. D-FACTS converters are singlephase and floating with respect to the ground. High-voltage isolation is no longer required between the phases.Comparatively, the cost of the DPFC system is less than the UPFC. DPFC has advantages like reduced power loss andvoltage profile. In this paper performance analysis of UPFC and DPFC are compared and corresponding experimentalresults are carried out by Simulink model.

Nikita Gupta, Vahadood Hasan, “Comparison of Performance of Distributed Power Flow Controller (DPFC) and Unified Power Flow Controller ( UPFC)”, International Journal of Advance Engineering and Research Development (IJAERD), Vol. 2, Issue 4, pp. 434-443, April 2015.