Design of saturated boundary control for hyperbolic systems with in-domain disturbances

TL;DR

This paper develops a boundary control method for 1D hyperbolic systems with in-domain disturbances, accounting for actuator saturation, and provides stability analysis and numerical validation.

Contribution

It introduces a novel control design approach using nonlinear semigroup theory and LMI optimization for hyperbolic systems with saturation and disturbances.

Findings

Proved well-posedness of the closed-loop system.

Established global stability and $\\mathcal{L}^2$-stability under certain conditions.

Validated the control design through numerical simulations.

Abstract

Boundary feedback control design is studied for 1D hyperbolic systems with an in-domain disturbance and a boundary feedback controller under the effect of actuator saturation. Nonlinear semigroup theory is used to prove well-posedness of mild solution pairs to the closed-loop system. Sufficient conditions in the form of dissipation functional inequalities are derived to establish global stability for the closed-loop system and $\mathcal{L}^2$-stability in presence of in-domain disturbances. The control design problem is then recast as an optimization problem over linear matrix inequality constraints. Numerical results are shown to validate the effectiveness of the proposed control design.