Title :
Receding Horizon Control Strategies for Constrained LPV Systems Based on a Class of Nonlinearly Parameterized Lyapunov Functions
Author :
Garone, Emanuele ; Casavola, Alessandro
Author_Institution :
Service d´´Autom. et d´´Anal. des Syst., Univ. Libre de Bruxelles, Brussels, Belgium
Abstract :
In this technical note, we present a Receding Horizon Control (RHC) design method for linear parameter varying (LPV) systems subject to input and/or state constraints based on a class of nonlinearly parameterized Lyapunov functions recently introduced by Guerra and Vermeiren. As it will be made clear, their use gives rise to less conservative stabilizability conditions w.r.t. those arising from quadratic Lyapunov functions. A workable convex optimization procedure is first presented for control design purposes which allows the synthesis of stabilizing scheduling state-feedback control laws complying with the prescribed constraints. This control design method is then arranged into a receding horizon framework and its feasibility and stability properties are carefully analyzed. Numerical comparisons with existing RHC methods for LPV systems are reported in the final example.
Keywords :
Lyapunov methods; control system synthesis; convex programming; state feedback; RHC; conservative stabilizability conditions; constrained LPV systems; control design method; convex optimization procedure; linear parameter varying; nonlinearly parameterized Lyapunov functions; receding horizon control strategies; state constraints; state-feedback control laws; Control design; Linear matrix inequalities; Lyapunov methods; Optimization; Predictive control; Robustness; Stability analysis; Control systems; linear parameter varying systems; receding horizon control;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2012.2186163