Design of a load frequency regulator based on the Schur approach

A linear-quadratic regulator for the load frequency control of a two-area power system has been developed based on the Schur method. The proposed method places open-loop poles successively in prescribed locations by solving a number of Riccati equations of order not more than two. The performance of the proposed method is tested by considering a two-area power system model and the results are presented. The proposed method may be used in the same way to design an observer with desired eigenvalues.