Abstract
This chapter analyzes the exponential stability of Networked Control Systems (NCSs) with communication constraints, variable sampling intervals and constant delays. We focus on static output feedback controllers for linear systems. The system sensors nodes are supposed to be distributed over a network. The scheduling of sensor information towards the controller is ruled by the classical Round-Robin protocol. We develop a time-delay approach for this problem by presenting the closed-loop system as a switched system with multiple delayed samples. By constructing an appropriate Lyapunov functional, which takes into account the switched system model and the sawtooth delays induced by sampled-data control, we derive the exponential stability conditions in terms of Linear Matrix Inequalities (LMIs). Polytopic uncertainties in the system model can be easily included in the analysis. The efficiency of the method is illustrated on the classical cart-pendulum benchmark problem.
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Liu, K., Fridman, E., Hetel, L., Richard, JP. (2014). Sampled-Data Stabilization under Round-Robin Scheduling. In: Vyhlídal, T., Lafay, JF., Sipahi, R. (eds) Delay Systems. Advances in Delays and Dynamics, vol 1. Springer, Cham. https://doi.org/10.1007/978-3-319-01695-5_13
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DOI: https://doi.org/10.1007/978-3-319-01695-5_13
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