CONTROLLING POWER FLOW LOSSES IN UPFC SYSTEM USING ADAPTIVE NEURO-FUZZY CONTROLLER

P. Hari Krishnan, P.J.Ragu

Abstract: The Power disturbances in the transmission line are to be controlled and reduced by using UPFC. Unified Power Flow Controller were the complex power electronic equipment for the control and optimization of power flow in electrical power transmission system in transmission lines. In this project, controlling the power flow and reducing the power oscillation damping losses (Reactive power) flow through a transmission lines with the use of UPFC. Adaptive Neuro-fuzzy controllers were used to control the UPFC system. The Adaptive Neuro-fuzzy controllers were used to generate the pulse signal. The pulse width modulation is used in the Neuro-fuzzy controller to produce the sinusoidal pulse signal. Designing the simulation using MATLAB Simulink is done and the controller of the UPFC is studied. In the UPFC system in transmission lines can be controlling the parameters using control systems, it is observed that whenever the source some real power into the transmission lines it is manifested as a voltage drop across the DC link. Reactive power demand is indicated in the bus bar AC voltage transmission lines. The fall of the DC link voltage is an indication of real power demand from the receiving end. Similarly a fall of the bus bar AC voltage is an indication of Reactive power demand from the receiving end. Simpower system toolbox is used in this works in the control of voltage and Power transfer.

Keywords: Adaptive Neuro-Fuzzy controller, UPFC, Pulse Width Modulation

DOI: https://doi.org/10.15623/ijret.2014.0319100