ISSN: 2320-5407 Int. J. Adv. Res. 5(4), 1571-1578 1571 Journal Homepage: - www.journalijar.com Article DOI: 10.21474/IJAR01/3982 DOI URL: http://dx.doi.org/10.21474/IJAR01/3982 RESEARCH ARTICLE MITIGATION OF VOLTAGE DISTRUBANCES IN SMIB SYSTEM USING ANN/FUZZY BASED DPFC SYSTEM. Budi Srinivasarao 1 , G. Sreenivasan 2 and Swathi Sharma 3 . 1. Research Scholar, Dept. of EEE, Jodhupur National University, Rajasthan, India 2. Assoc.Prof, Dept. of EEE, Intel Engineering College, Anathapur, A.P, India 3. Assoc.Prof, Dept. of EEE, Jodhupur National University, Rajasthan, India …………………………………………………………………………………………………….... Manuscript Info Abstract ……………………. ……………………………………………………………… Manuscript History Received: 18 February 2017 Final Accepted: 07 March 2017 Published: April 2017 Key words:- Power Quality, Sag/Swell, Fuzzy, ANN, FACTS Controllers. Since last decade, the reliability of power at consumer point is mainly effected due to sudden changes of loads, variations in the system parameters and finally, due to complexity of the system. Generally, power quality is defined as the variations in the voltage, frequency and current. For compensating these problems a new strategy of FACTS controller called as Distributed Power Flow Controller is proposed in this paper. In order to get the better result the control circuit of DPFC is designed with ANN and Fuzzy Controllers. Copy Right, IJAR, 2017,. All rights reserved. …………………………………………………………………………………………………….... Introduction:- By considering the transmission of electrical energy frame creating stations to shopper focuses, the term power quality is utilized to gauge the flawlessness of power and the lattices capacity to supply a reasonable sinusoidal wave shape [1]. At purchaser point the solid power is only, how the transmission line parameters, for example, voltage, current and others are influenced and veered off from their genuine values because of event of aggravations [2]. Generally, flexible ac transmission system gives the good solution for power quality improvement [3]. Facts controllers are classified into four types, i.e Shunt, Series, Series-Series and Series-Shunt controllers. There is general accord that the future power grid tends to be smart and mindful, furthermore, statically controllable and energy efficient. Working Architecture of DPFC:- Like, UPFC controller, DPFC is also one of the type in series–shunt converter of FACTS converter. But, in case of DPFC DC-Link capacitor between series-shunt converters is separated, figure 1 shows the construction and architecture of DPFC. In case of DPFC the active power is exchanged between two converters with the help of transmission line. Corresponding Author:- Budi Srinivasarao. Address:- Research Scholar, Dept. of EEE, Jodhupur National University, Rajasthan, India.