@inproceedings{490cf58db4de426e95adc775540e8eb8,
title = "Analysis and design of disturbance observer for piezoelectric hysteresis nonlinear system",
abstract = "Disturbance observer (DOB) is widely used in high accurate control of servo systems. But hysteresis nonlinearity of the piezoelectric actuator in the system decreases the performance of the system and even causes oscillation. The focus of this paper is on three areas. First, Hammerstein hysteresis model is proposed to describe the dynamic hysteresis effects of piezoelectric actuator. Then, the influences of the hysteresis in the piezoelectric actuator on the DOB performances are analyzed using describing function method. Finally, a DOB combined with hysteresis compensator is designed for piezoelectric actuator. The simulation and experimental results show that, compared with control case without hysteresis compensation, the hysteresis inverse compensator improves the performance of the system and decreases oscillation in high frequency.",
keywords = "Describing function method, Disturbance observer, Hammerstein model, Hysteresis compensator, Hysteresis nonlinearity",
author = "Hefei Sun and Zhen Zhang",
note = "Publisher Copyright: {\textcopyright} Springer-Verlag Berlin Heidelberg 2015.; Chinese Intelligent Automation Conference, 2015 ; Conference date: 01-01-2015",
year = "2015",
doi = "10.1007/978-3-662-46463-2\_53",
language = "英语",
isbn = "9783662464625",
series = "Lecture Notes in Electrical Engineering",
publisher = "Springer Verlag",
pages = "521--532",
editor = "Hongbo Li and Zhidong Deng",
booktitle = "Proceedings of the 2015 Chinese Intelligent Automation Conference - Intelligent Automation",
address = "德国",
}