Packet-loss-dependent stabilization of model-based networked control systems

Abstract

In this paper, the stabilization problem and controller design of model-based networked control systems (MB-NCSs) with both arbitrary and Markovian packet dropouts are discussed via the switched system approach. Different from the common way of using the last successfully transmitted information, the approximate state produced by the explicit plant model is applied to deal with the packet loss problem in our method. Based on the Lyapunov functional methodology and inequality techniques, some sufficient stabilization conditions are derived and stabilizing state feedback controllers are constructed. Moreover, by using the cone complementary linearation (CCL) method, a non-linear minimization problem subject to some linear matrix inequalities (LMIs) is provided here to help find a sub-optimal solution. Numerical examples and accompanying simulations illustrate the effectiveness and validity of our techniques, and also evidence of improvements over the existing literature. © 2013 John Wiley and Sons Asia Pte Ltd and Chinese Automatic Control Society.