Abstract Since the advent of the UPFC there have been immense developments, based on control systems associated with the management of the UPFC. Traditionally the PI, Fuzzy and Neural Network control techniques have been in used for the four control units of the UPFC. This paper presents the design and development steps of a novel control scheme for the UPFC. The proposed technique believes that a single combined ANN based controller can be trained appropriately to handle all the mappings associated with the inputs and the corresponding outputs associated with all the controllers of the UPFC. It is demonstrated in this paper by way of simulations in the MATLAB / SIMULINK environment how a single ANN can be developed and used in place of the four controllers usually used in the management of the UPFC. The observations of enhanced performance in terms of improved dynamic behaviour by the usage of a single ANN control strategy are presented in this paper. *Author for correspondence Indian Journal of Science and Technology, Vol 7(8), 1155–1169, August 2014 ISSN (Print) : 0974-6846 ISSN (Online) : 0974-5645 A Novel Intelligent Uniied Controller for the Management of the Uniied Power Flow Controller (UPFC) using a Single Back Propagation Feed Forward Artiicial Neural Network K. A. Rani Fathima 1* and T. A. Raghavendiran 2 1 Department of Electrical & Electronics Engineering, Sathyabama University, Chennai, Tamil Nadu, India; fathima_powersystems@yahoo.co.in 2 Anand Institute of Higher Technology, Chennai, Tamil Nadu, India 1. Introduction In a Single Machine Ininite Bus bar (SMIB) system the Uniied Power Flow Controller (UPFC) can be incor- porated and well utilised for the purpose of enhanced power low from the single machine to the grid. he grid, in this case is the load for the single machine. he core rationale behind the facts devices is to increase the power transaction capabilities as high as possible just limited by the thermal limits of the corridor and the terminal equipments. he UPFC ofers a set of useful features that can provide a comprehensive complete control over the power transaction requirements. With the help of the UPFC, the real, reactive power low, magnitude and angle of receiving end voltage and line impedance can be modiied according to the require- ments by power economic conditions prevailing and changing from time to time. Followed by the initial and innovative contributions by N.G. Hingorani 1 on Flexible AC Transmission Systems (FACTS), the UPFC was irst formulated by Gyuagi in the year 1992 2,3 . Since then there have happened a number of devel- opments on three important aspects of the basic UPFC equipment. he major developments that have taken place in the UPFC system are a. Topological changes like increased voltage levels of converters. b. Variations Keywords: Artificial Neural Network, Fuzzy Logic Controller, Unified Power Flow Controller (UPFC) PI