Archimedes Optimization Algorithm Based PI Controller for a Two Area Load Frequency Control

optimal design of load frequency controller (LFC) is an important issue in stabilizing power system. This paper presents PI controller based Archimedes optimization algorithm (AOA) to enhance the performance of load frequency controller. A two interconnected non-reheat thermal power plants has been used to investigate the performance of the proposed system. AOA has been used to minimize the integral time multiplied absolute error (ITAE) through tuning the parameters of PI controller. Consequently, the frequency deviation and power mismatch between generation and load demand under different loading conditions is minimized. Two load disturbances lasting for 400 msec are applied, 0.02 and 0.04 p.u. These load disturbances were applied at the two areas, area 1 and area 2. The obtained results were compared to conventional case without optimizing the controller. The obtained results shows the effectiveness of the proposed controller.