标题:A Novel Dual-Observer Based Control Scheme for Nano-positioning Systems with Output Delay
作者:Wang, Xin ;Wen, Xinyu ;Yan, Peng
通讯作者:Yan, Peng
作者机构:[Wang, X] Key Laboratory of High-efficiency and Clean Mechanical Manufacture Ministry of Education, School of Mechanical Engineering, Shandong Univers 更多
会议名称:2018 Chinese Automation Congress, CAC 2018
会议日期:30 November 2018 through 2 December 2018
来源:Proceedings 2018 Chinese Automation Congress, CAC 2018
出版年:2019
页码:3706-3711
DOI:10.1109/CAC.2018.8623154
关键词:DOBC; Lyapunov stability; nano-positioning; output delay
摘要:In this paper, a novel dual disturbance observer based control (DOBC) method is presented to achieve unknown-periodic disturbance rejection of the nano-positioning stages with output delays. In the control structure, an auxiliary observer is employed to extract the state of the disturbance, while a key information observer is developed to estimate the disturbance frequency. To stabilize the augmented system, a feedback controller is further designed, where sufficient stability conditions are derived though Lyapunov-Krasovskii functions. Simulations and real time experiments on a piezoelectric-actuated nano-positioning stage with output delay are conducted, where the disturbance frequency is well predicted for the purpose of cancellation. © 2018 IEEE.
收录类别:EI;SCOPUS
资源类型:会议论文;期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85062795242&doi=10.1109%2fCAC.2018.8623154&partnerID=40&md5=81c8b1d80fe28916efe3a1bd60beb5e4
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