The effect of small delays in the feedback loop on the stability of neutral systems
Systems & Control Letters
Stability of Time-Delay Systems
Stability of Time-Delay Systems
International Journal of Automation and Computing
Stabilisation of neutral systems with saturating control inputs
International Journal of Systems Science
Technical Communique: Robust H∞ control of linear neutral systems
Automatica (Journal of IFAC)
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A method is proposed for stabilization, using static state feedback, of systems subject to time-varying delays in both the states and their derivatives (i.e., neutral systems), in the presence of saturating actuators. Delay-dependent conditions are given to determine stabilizing state-feedback controllers with large domain of attraction, expressed as linear matrix inequalities, readily implementable using available numerical tools and with tuning parameters that make possible to select the most adequate solution. These conditions are derived by using a Lyapunov-Krasovskii functional on the vertices of the polytopic description of the actuator saturations. Numerical examples demonstrate the effectiveness of the proposed technique.