Abstract.

In an electric power system, Automatic Generation Control (AGC) is a system for adjusting the power output of multiple generators at different power plants. The primary purpose of the AGC is to balance the total system generation against system load and losses so that the desired frequency and power interchange with neighbouring systems are maintained. Any mismatch between generation and demand causes the system frequency to deviate from scheduled value. Thus, high frequency deviation may lead to system collapse. This necessitates an accurate and fast acting controller to maintain constant frequency.

This paper presents an output scaling factor based fuzzy classical controller to improve AGC conduct of electrical power systems. Achievement of imperialist competitive algorithm (ICA) is made to optimize the output scaling factor (SF) of fuzzy proportional integral (FPI) and advantages of fuzzy control.



Key words: Automatic Generation Control (AGC), Fuzzy logic Control (FLC).