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|Title:||Linear Quadratic Networked Control Of Uncertain Polytopic Systems|
Marcio F.; Morais
Cecilia F.; Tognetti
Eduardo S.; Oliveira
Ricardo C. L. F.; Peres
Pedro L. D.
|Abstract:||This paper investigates the problem of designing robust linear quadratic regulators for uncertain polytopic continuous-time systems over networks subject to delays. The main contribution is to provide a procedure to determine a discrete-time representation of the weighting matrices associated to the quadratic criterion and an accurate discretized model, in such a way that a robust state feedback gain computed in the discrete-time domain assures a guaranteed quadratic cost to the closed-loop continuous-time system. The obtained discretized model has matrices with polynomial dependence on the uncertain parameters and an additive norm-bounded term representing the approximation residual error. A strategy based on linear matrix inequality relaxations is proposed to synthesize, in the discrete-time domain, a digital robust state feedback control law that stabilizes the original continuous-time system assuring an upper bound to the quadratic cost of the closed-loop system. The applicability of the proposed design method is illustrated through a numerical experiment. Copyright (C) 2015 John Wiley & Sons, Ltd.|
|Subject:||Discretized Linear Systems|
Networked Control Systems
Taylor Series Expansion
State Feedback Control
Linear Matrix Inequalities
Linear Quadratic Regulator
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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