标题:Global practical tracking for nonlinear systems with unknown relative degree
作者:Wang, Meiqiao ;Liu, Yungang ;Man, Yongchao
作者机构:[Wang, Meiqiao ;Liu, Yungang ;Man, Yongchao ] School of Control Science and Engineering, Shandong University, Jinan; 250061, China
会议名称:2017 Chinese Automation Congress, CAC 2017
会议日期:20 October 2017 through 22 October 2017
来源:Proceedings - 2017 Chinese Automation Congress, CAC 2017
出版年:2017
卷:2017-January
页码:4989-4994
DOI:10.1109/CAC.2017.8243664
关键词:global practical tracking; non-parametric uncertain nonlinearities; Nonlinear systems; switching logic; unknown control direction; unknown relative degree
摘要:This paper considers global practical tracking for a class of nonlinear systems with unknown relative degree, unknown control direction and non-parametric uncertain nonlinearities. Different from the existing results, known upper bound is not required for the unknown relative degree, which makes it impossible to design a filter with fixed dimension. To compensate the multiple uncertainties, a novel strategy is proposed based on switching mechanism to construct a dynamic output-feedback controller with a varying-dimensional filter, whose gain and dimension are tuned online via a switching logic. It is rigorously shown that the switching type output-feedback controller can guarantee that the system error reaches prescribed small accuracy before a pre-specified time, with pre-specified maximum overshoot, and the system state is globally bounded. © 2017 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-s2.0-85050357185&doi=10.1109%2fCAC.2017.8243664&partnerID=40&md5=d71673b2080ae3bac4f8b804961b5bfa
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