Automatic Generation Control of Two-Area Power System Using Fuzzy Proportional-Integral-Derivative Controller

Abstract

Modern power systems networks consist of a number of utilities interconnected networks together. Power is exchanged between utilities over tie-lines by which they are connected. Automatic Generation Control (AGC) plays a very important role in power system. It's main role is to maintain the system frequency and tie-line flow at their scheduled values during normal period and also when the system is subjected to small step load perturbations. Fuzzy logic has been successfully applied to a large number of control systems applications. The most commonly used controller is the Proportional Integral Derivative (PID) controller, which requires a mathematical model of the system. A fuzzy logic controller provides an alternative to the PID controller. It is a good tool for the control of systems that are difficult to model. In this study, a power system with two areas connected through tie-line is considered. The objective of AGC, based on fuzzy PID controller, is to damp the transient deviations (frequency and power) and to provide zero steady-state error of these variables in a very short time. The simulation is implemented by using MATLAB/SIMULINK program.