An improved output feedback decentrilized control approaches for interconnected large scale systems

Abstract

In this paper, new approaches are proposed for characterizing robust decentralized controllers for discrete time large scale interconnected systems. In fact, it consists on a new stabilization condition, formulated as an LMI optimization problem parameterized by a scalar, offering an additional degree of freedom. This approach is also extended to treat the dynamic output feedback. Numerical examples are given to illustrate the effectiveness of the proposed design methods.