H_ Loop Shaping Based Robust Power System Stabilizer for Three Machine Power System

The dynamics of a multi machine power system are both nonlinear and interconnected. The equilibrium of such a system is typically unknown and uncertain, and the controllers within are also subjectto physical limitations. In this paper, application of nonlinear H robust power system stabilizer design is presented for a threemachine system. Based on the latest development of nonlinear H robust control theory, a control design is applied to stabilize the linearized uncertain system using Glover-McFarlane’s loop shaping design procedure for a three machine system. Guidance for setting the feedback configuration for loop shaping and synthesis are presented. The results of simulation studies are presented.