Repetitive Control of Piezoelectric Actuators with Fuzzy Hysteresis Compensation in Nanopositioning Applications
A new repetitive control scheme with fuzzy hysteresis compensation is proposed for cancelling out the hysteresis effect of the piezoelectric actuator in periodic trajectory tracking.The repetitive controller (RC) is designed for robustness and good tracking performance.The fuzzy hysteresis compensator is developed using the inverse of the proposed novel fuzzy-systembased hysteresis model.Experiments with 50 Hz sinusoidal and triangular trajectories show that the maximum tracking errors are reduced to 58 nm and 43 nm by the proposed controller,88% and 87% less than the conventional PID controller respectively.Clearly,the experiment demonstrates the efficiency of the designed controller in nanopostioning applications.
piezoelectric actuator nanopositioning fuzzy repetitive control
Peng-Zhi Li Feng Yan
State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, China Academy of Science, Changchun,China
国际会议
天津
英文
533-537
2012-10-16(万方平台首次上网日期,不代表论文的发表时间)