Eliminating Frequency Deviation and Restoring Terminal Voltage of an Electric Power Generating Unit Using MPC

In order to keep pace with the ever increasing demand and maintain the stability of the power system, the frequency deviation and the terminal voltage variation of an electric power generating unit need to be taken care of within the shortest time span. In this paper an optimal model predictive control (MPC) scheme is proposed for providing robust control of frequency as well as the terminal voltage of a generating unit. The performance of the proposed controller is compared with the conventional proportional-integral-derivative (PID) controller, linear quadratic regulator (LQR) and the PID-LQR controller. The proposed control scheme mitigates frequency deviation ten times faster and also reinstates the terminal voltage three times faster than the existing controllers.