Title :
Real-time compensation of hysteresis in a piezoelectric-stack actuator tracking a stochastic reference
Author :
Weibel, F. ; Michellod, Y. ; Mullhaupt, Ph ; Gillet, D.
Author_Institution :
Ecole Polytech. Fed. de Lausanne, Lausanne
Abstract :
This paper presents a convenient way to invert the classical Preisach model to compensate the hysteresis of a piezoelectric stack actuator in real-time. The advantage of the proposed method lies the possibility to track a stochastic signal and compensate the hysteresis in real-time. Experimental results show a reduction of the RMS tracking error by 67% to 90% by using the compensation algorithm designed.
Keywords :
control nonlinearities; piezoelectric actuators; stochastic processes; compensation algorithm; hysteresis; piezoelectric-stack actuator; stochastic signal; Algorithm design and analysis; Atmospheric modeling; Atom optics; Degradation; Hysteresis; Optical interferometry; Optical microscopy; Piezoelectric actuators; Stochastic processes; Voltage;
Conference_Titel :
American Control Conference, 2008
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-2078-0
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2008.4586942
