Data-Driven Global Stabilization of Unknown Infinite Networks
For control theorists and practitioners, this work provides a scalable data-driven method to stabilize large-scale networks without requiring system models, addressing a key bottleneck in network control.
This paper presents a data-driven framework for stabilizing unknown infinite networks of nonlinear polynomial subsystems using only noise-corrupted input-state trajectories. The approach ensures uniform global asymptotic stability (UGAS) of the entire network, demonstrated on infinite networks of spacecraft and Lorenz systems.
This paper develops a direct data-driven framework for infinite networks with unknown nonlinear polynomial subsystems, enabling the synthesis of controllers that ensure the entire network is uniformly globally asymptotically stable (UGAS). To address scalability challenges arising from high dimensionality, we develop a data-driven approach to construct an input-to-state stable (ISS) Lyapunov function and its corresponding controller for each unknown subsystem using only a single set of noise-corrupted input-state trajectories collected from that subsystem. Once each subsystem admits a data-driven ISS Lyapunov function, we leverage a compositional small-gain framework for infinite-dimensional spaces to construct a global control Lyapunov function and its associated controller, thereby ensuring UGAS of the entire infinite network. The effectiveness of the proposed data-driven approach is demonstrated through three case studies, including infinite networks of spacecraft, Lorenz chaotic systems, and an academic example with a state-dependent control input matrix.