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LQR Based Load Frequency Controller for Two Area Power System

V. Ganesh, K.Vasu and P.Bhavana

Recently, LQR controllers have received extensive attention and research. Accordingly, there is an increasing interest in LQR controller. The widely used classical integer order proportional integral controller and proportional integral derivative controller are usually adopted in the load frequency control (LFC) and automatic generation control (AGC) to improve the dynamic response and to eliminate or reduce steady state errors. In this paper LQR controllers are used to improve dynamic stability and response of LFC and AGC system. This paper investigates LFC and AGC for interconnected power systems and shows that LQR controllers perform better than classical integer order controllers in these systems.