  In the present work a new controller called Particle Swarm Optimization based
state feedback gain controller has been proposed for frequency regulation of a
two area system and then its performance is compared with earlier designed
controllers such as Linear Quadratic Regulator Proportional Integral controller
and Integral controller. The performance comparison has been done for the power
system network comprising of two thermal power plants which are tie line
connected. For using the optimal control based method such as LQR PI controller
and computationally intelligent method such as PSO based state feedback gain
controller, the state space modeling of the system has been done. Transfer
function model for the system is used for finding the response of Integral
controller. In an effective generation control scheme the change in frequency
should be minimum during the load variation. The proposed PSO based state
feedback gain controller technique has been found most effective for improving
the frequency response.
