Optimal output control: Load frequency control of a large power system

This paper addresses the stabilization and performance of the load frequency regulator. The problem is solved by using the theory of the optimal control. An algorithm, based on the new technique, proposed by the authors, to overcome the difficulties of specifying the weighting matrices Q and R, is presented. The algorithm here proposed considers the multi-area electric energy system. The paper presents illustrative numerical simulation results for this model. The results indicate that the obtained controller exhibits better performance then those based on classic control.