Title :
Charge feedback-based robust position tracking control for piezoelectric actuators
Author :
Salah, M.H. ; McIntyre, Michael L. ; Dawson, D.M. ; Wagner, John R. ; Tatlicioglu, Enver
Author_Institution :
Dept. of Mechatron. Eng., Hashemite Univ., Zarqa, Jordan
Abstract :
In this study, the Coleman-hysteresis model is utilised in the piezoelectric actuator (PZTA) dynamic model and a non-linear robust control strategy is then developed to actively control the displacement of the PZTA effective tip. The proposed control technique is designed based on the partial knowledge of the hysteresis model while the mass of the PZTA is assumed to be uncertain. The piezoelectric charge measurement is utilised in the controller design to reduce the effects of the hysteresis. Lyapunov-based stability analysis techniques are utilised to ensure that a desired displacement trajectory is accurately tracked. Representative numerical results are presented and discussed to demonstrate the tracking performance of several desired displacement trajectories with different frequencies and amplitudes. Finally, comparisons with a standard PID controller and a sliding mode controller were performed to examine the effectiveness of the proposed control design.
Keywords :
Lyapunov methods; control system synthesis; nonlinear control systems; piezoelectric actuators; position control; robust control; Coleman-hysteresis model; Lyapunov-based stability analysis; PZTA effective tip; charge feedback-based robust position tracking control; controller design; displacement trajectory; nonlinear robust control; piezoelectric actuator dynamic model; piezoelectric actuators; piezoelectric charge measurement; sliding mode controller; standard PID controller;
Journal_Title :
Control Theory & Applications, IET
DOI :
10.1049/iet-cta.2010.0568