Optimal design of Fuzzy Logic Controller for Automatic Voltage Regulator

In this research, the application of Fuzzy Logic Controller (FLC) based Automatic Voltage Regulator (AVR) system is presented. The AVR is a device to control the reactive power and hold the terminal voltage of the synchronous generator at safer limits. In this paper FLC based, AVR system is analyzed with Triangular membership functions (MF). Two inputs, error voltage and change in error voltage are considered as inputs of the FLC. In this study, triangular MF is considered and checked the performance of fuzzy AVR system with different proportional integral derivative (PID) controllers in literature. It is found that the proposed FLC based AVR system reflects better performance in comparison to PID controller based AVR system.