A nonlinear extended state observer based on fractional power functions

doi:10.1016/j.automatica.2017.03.002

CSpace > 系统科学研究所

	A nonlinear extended state observer based on fractional power functions
	Zhao, Zhi-Liang 1; Guo, Bao-Zhu2,3
	2017-07-01
发表期刊	AUTOMATICA
ISSN	0005-1098
卷号	81 页码:286-296
摘要	In this paper, we investigate a nonlinear extended state observer (ESO) constructed from piece-wise smooth functions consisted of linear and fractional power functions. This structure of ESO was first proposed in the 1990's and has been widely used in active disturbance rejection control for engineering controls. Its convergence, however, has remained an open problem up to this day. The main objective of this paper is to provide a convergence theory with explicit error estimation. The performances of this type ESO are studied by numerical simulation and compared with linear ESO. The numerical results show that the ESO proposed in this paper enjoys the advantages of smaller peaking value and better measurement noise tolerance. (C) 2017 Elsevier Ltd. All rights reserved.
关键词	Extended state observer Nonlinear systems Uncertainty
DOI	10.1016/j.automatica.2017.03.002
语种	英语
资助项目	National Natural Science Foundation of China[61403242] ; Nature Science Research Program of Shaanxi Province-Key Program[2016JZ023] ; Fundamental Research Funds for the Central University[GK201702013]
WOS研究方向	Automation & Control Systems ; Engineering
WOS类目	Automation & Control Systems ; Engineering, Electrical & Electronic
WOS记录号	WOS:000403513900033
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/25754
专题	系统科学研究所
通讯作者	Zhao, Zhi-Liang
作者单位	1.Shaanxi Normal Univ, Sch Math & Informat Sci, Xian 710119, Shaanxi, Peoples R China 2.Acad Sinica, Acad Math & Syst Sci, Key Lab Syst & Control, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Math Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Zhi-Liang,Guo, Bao-Zhu. A nonlinear extended state observer based on fractional power functions[J]. AUTOMATICA,2017,81:286-296.
APA	Zhao, Zhi-Liang,&Guo, Bao-Zhu.(2017).A nonlinear extended state observer based on fractional power functions.AUTOMATICA,81,286-296.
MLA	Zhao, Zhi-Liang,et al."A nonlinear extended state observer based on fractional power functions".AUTOMATICA 81(2017):286-296.