Hamed Akabari - Science and Research Branch, Islamic Azad University, Kerman, Iran
Hadi Zayandehroodi - Science and Research Branch, Islamic Azad University, Kerman, Iran
Alireza Nazmadini - Science and Research Branch, Islamic Azad University, Kerman, Iran

This Load Frequency Control (LFC) is one of the major issues in the power system design and operation. In this paper a new method to solve load frequency control problem is proposed using the state feedback controller based on Artificial Bee Colony (ABC) Algorithm. For this, the designing problem is restructured as an optimization problem and an objective cost function is used to design the gains of the state feedback matrix. The proposed cost function decrease the frequency deviation and power flow variations. In this paper the ABC algorithm is employed to minimize the proposed cost function. For the purpose of the proposed method’s evaluation, the design controller is applied to a two area power system with considerations regarding governor saturation and the results are compared to the one obtained by a classic PI controller. Moreover, the robustness of the proposed method is tested against change of parameters. The simulation studies show that the designed controller by suggested method has a very desirable dynamic performance, better operation and improved system parameters such as settling time and step response rise time even when the system parameters change

Load Frequency Control, Artificial Bee Colony Algorithm, State feedback controller