Abstract: “The objective of this paper is to develop the mathematical model of the non-linear power system that can be utilized for implementing the different class of controller. The controller designed here fulfills the stability requirement of the system as well as makes the system transiently stable. The linearization of the power system is done using direct feedback linearization technique and the model thus obtained has parameters which can be used as controller input. The linear LQ optimal control theory is applied to the model to design an optimal feedback control law, νf (t).”

Keywords: DFL(direct feedback linearization).