ROBUST DECENTRALIZED CONTROLLER DESIGN FOR POWER SYSTEMS USING CONVEX OPTIMIZATION INVOLVING LMIS

Getachew K. Befekadu, I. Erlich
2005 IFAC Proceedings Volumes  
This paper deals with the application of robust decentralized controller design for power systems using linear matrix inequality (LMI) techniques. In the design, the desired stability of the system is guaranteed while at the same time the tolerable bounds in the uncertainties due to structural changes, nonlinearities and load variations, are maximized. The approach allows the inclusion of additional design constraints such as the size and structure of the gain matrices. The paper also presents
more » ... decomposition procedure using the clustering technique of the states, inputs and outputs structure information to compute directly the appropriate diagonal structures of the output gain matrix for practical implementation. The algorithms were implemented on a test system and simulation results for power system stabilizer (PSS) design are presented. framework of convex optimization involving LMIs. An interconnection based modeling approach is introduced -an approach which explicitly takes into account the interactions among subsystems and the effects of nonlinearities within each subsystems.
doi:10.3182/20050703-6-cz-1902.01744 fatcat:sp2ntgc3engfnbbm6umvbucmu4