Title :
Design of a Pressure Control System With Dead Band and Time Delay
Author :
Anthonis, Jan ; Seuret, Alexandre ; Richard, Jean-Pierre ; Ramon, Herman
Author_Institution :
K.U. Leuven, Leuven
Abstract :
This paper investigates the control of pressure in a hydraulic circuit containing a dead band and a time varying delay. The dead band is considered as a linear term and a perturbation. A sliding mode controller is designed. Stability conditions are established by making use of Lyapunov-Krasovskii functionals, nonperfect time delay estimation is studied and a condition for the effect of uncertainties on the dead zone on stability is derived. Also, the effect of different LMI formulations on conservativeness is studied. The control law is tested in practice.
Keywords :
Lyapunov methods; control system synthesis; delays; hydraulic systems; linear matrix inequalities; pressure control; variable structure systems; LMI formulations; Lyapunov-Krasovskii functionals; dead band; hydraulic circuit; nonperfect time delay estimation; pressure control system design; sliding mode controller; time varying delay; Circuit stability; Control systems; Delay effects; Delay estimation; Friction; Pressure control; Sliding mode control; Spraying; Uncertainty; Valves; Dead zone; linear matrix inequality (LMI); pressure control; stability; time-varying delay;
Journal_Title :
Control Systems Technology, IEEE Transactions on
DOI :
10.1109/TCST.2006.890299
