报告题目：Advanced Control of Piezoelectric-Driven Precision Motion Systems

报告人： Qingsong Xu 教授

单位：澳门大学

时间：2016年12月23日周五下午2:00

地点：东南大学中心楼二楼 自动化学院教育部重点实验室会议室

邀请人：李世华 教授

主持人：李世华 教授

摘要

Piezoelectric materials exhibit both a direct and a reverse piezoelectric effect, and find extensive applications as transducers. Piezoelectric actuators have been widely employed to achieve precision motion with nanometer resolution. However, the presence of piezoelectric nonlinearity in terms of hysteresis and creep effect calls for control design to deliver a precise output. This presentation outlines our recent research work on development and control of piezoelectric-driven motion systems dedicated to precision applications involving micro/nano-positioning and micromanipulation. In particular, several sliding mode controllers have been designed to cater for the motion accuracy requirement and verified through experimental studies. Future work on performance improvement of the control system will be discussed.

报告人简介

Qingsong Xu is an Associate Professor of electromechanical engineering and the Director of Smart and Micro/Nano Systems Laboratory at the University of Macau. He was a visiting scholar at the University of California, Los Angeles (UCLA), USA in 2016, the RMIT University, Melbourne, Australia in 2016, the National University of Singapore, Singapore in 2012, and the Swiss Federal Institute of Technology (ETH Zurich), Switzerland in 2011. His current research area involves control and automation, MEMS-based micro/nano mechatronics and systems, and applications of computational intelligence. He is a Senior Member of IEEE and a Technical Editor of IEEE/ASME Transactions on Mechatronics.