Compensation of Frequency Fluctuation in a Single Area Power System Using LQR-VC

To maintain the power system stability frequency fluctuation should be eliminated within the shortest possible time. A new control scheme combining linear quadratic regulator (LQR) along with a vibration compensator (VC) is proposed in this paper for the robust control of frequency fluctuation due to load variation in a single area generating system. The proposed LQR controller is used for compensation of error deviation and the augmented VC to damp the frequency fluctuation. To demonstrate the effectiveness of the proposed LQR-VC controller its performance is contrasted with the automatic generation control (AGC) scheme, existing PID, and LQR controller.