Extended Dissipative Observer-Based Plug-and-Play Control for Large-Scale Interconnected Systems

Le résumé fourni par la source

In this study, a novel observer-based scalable control scheme for large-scale systems (LSSs) with several interconnected subsystems is explored. Firstly, a scalable observer-based controller is designed to address complex situations where system states are difficult to measure directly. Secondly, unlike the limited cascade and ring topology connections in previous results, this study considers a universal arbitrary topology. Furthermore, it is noteworthy that the plug-and-play (PnP) capability of LSSs is guaranteed thanks to the proposed scalable scheme. Specifically, when subsystems are added or removed, only the controller gains of directly connected neighbors need updating, eliminating the need to redesign the entire system. Moreover, by choosing a Lyapunov-Krasovskii function with a quadratic matrix-valued polynomial, sufficient conditions are deduced to guarantee the global exponential stability with the desired extended dissipative performance for the resulting LSSs. Finally, the effectiveness of the employed scheme is verified by numerical and microgrid examples.

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