A Decentralized Stabilization Scheme for a Class of Large-scale Interconnected Systems

• DOI: 10.3182/20110828-6-it-1002.02116
• Publication Date: 2011-08-28T20:55:44Z
• Authors: Omid Khorsand; Ather Gattami
• Keywords: Decentralised system; Robustness

Abstract In this paper, a decentralized control approach for a class of large-scale interconnected systems is proposed. A set of local decentralized controllers is constructed to guarantee the stability of the global system utilizing the notion of superstability. The control scheme and design are based on local state information and model knowledge of the adjacent subsystems. The approach leads to a computationally efficient method where the design procedure is performed on the subsystem level using linear programming. The solutions have been optimized and it is shown that the scheme has some useful features such as monotonic convergence and robustness under interval matrix uncertainty.