• K.Manozkumarreddy
• Dr. A. Kailasarao
• Dr. R.srinivasrao

The unified power flow controller (UPFC) is one of the most flexible alternating current transmission systems(FACTS) device in a power network. The UPFC is the shunt series equipment interconnected by DC link, with shunt converter and series converter. The objective of this paper is to use UPFC injection model which can be incorporated in power flow algorithm for power flow control in a powernetwork. The location of UPFC is done by active power loss sensitivity factor(APLSF) and online voltage stability index(OLVSI) in order to increase voltage level and reduce power losses. Programming is carried out in MATLAB to check the performance of UPFC in IEEE 5 bus system. The results of power system network with and without using UPFC are compared in terms of active power flows in the line and also power loss to analyze the performance of UPFC .

injection model, power flow, sensitivity factor, stability index

"REGULATION OF POWERFLOW BY UNIFIED POWER FLOW CONTROLLER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 6, page no.418-422, June-2018, Available :http://www.jetir.org/papers/JETIRC006073.pdf

"REGULATION OF POWERFLOW BY UNIFIED POWER FLOW CONTROLLER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 6, page no. pp418-422, June-2018, Available at : http://www.jetir.org/papers/JETIRC006073.pdf