International Journal of Engineering and Technology

In modern power system, Static Compensator (STATCOM) is used to alleviate the transient stability problem and damping power system oscillations. In this paper different STATCOM control scheme using fuzzy logic controller (FLC) and model predictive controller (MPC) for the Single Machine Infinite Bus (SMIB) system in improving transient stability is simulated using MATLAB/ Simulink in power systems block set. PI, FLC and MPC signals are used to control and exchange the required reactive power among the STATCOM and the power grid. A load disturbance is simulated and the behavior of the system for voltage fluctuations has been studied. Simulation results using Proportional-Integral (PI) controller, Fuzzy Logic Controller (FLC) and Model Predictive Controller (MPC) have been compared. The effectiveness of the different controllers in damping oscillations and improving power system stability has been discussed.