MATLAB simulink model of fuzzy logic controller with PSS and its performance analysis

In this paper, the operation of a Fuzzy Logic Controller with PSS controller is analysed in simulink environment. The development of a Fuzzy Controller with power system stabilizer in order to maintain stability and enhance the performance of a power system is described widely. The application of the Fuzzy Controller with PSS controller is investigated by means of simulation studies on a single machine infinite bus system. The functional blocks of Fuzzy Controller with PSS are developed in Simulink and simulation studies are carried out. A study case for the validation of the proposed simulink mechanism is presented and analysed with control application for a synchronous generator excitation system. The superior performance of this stabilizer in comparison to PSS and without PSS proves the efficiency of this new Fuzzy Controller with PSS controller. The comparison studies carried out for various results such as speed deviation, field voltage, rotor angle and load angle in Simulink based MATLAB environment.