Extended state observer for MIMO nonlinear systems with stochastic uncertainties

doi:10.1080/00207179.2018.1475750

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	Extended state observer for MIMO nonlinear systems with stochastic uncertainties
	Wu, Ze-Hao 1; Guo, Bao-Zhu 1,2,3
	2020-03-03
发表期刊	INTERNATIONAL JOURNAL OF CONTROL
ISSN	0020-7179
卷号	93 期号:3 页码:424-436
摘要	In this paper, both linear extended state observer (ESO) and nonlinear ESO with homogeneous weighted functions are proposed for a class of multi-input multi-output (MIMO) nonlinear systems composed of coupled subsystems with large stochastic uncertainties. The stochastic uncertainties in each subsystem including internal coupled unmodelled dynamics and external stochastic disturbance without known statistical characteristics are lumped together as the stochastic total disturbance (extended state) of each subsystem. The linear ESO and nonlinear ESO are designed separately for real-time estimation of not only the unmeasured state but also the stochastic total disturbance of each subsystem. The practical mean square convergence of these two classes of ESOs are developed. Some numerical simulations are presented to demonstrate the effectiveness of the ESOs with the advantages of smaller peaking values and more accurate estimation by the nonlinear ESO.
关键词	Extended state observer active disturbance rejection control MIMO nonlinear systems stochastic uncertainties unmodelled dynamics
DOI	10.1080/00207179.2018.1475750
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[11501108] ; National Natural Science Foundation of China[11501106] ; Project of Department of Education of Guangdong Province[2017KTSCX191] ; Project of Department of Education of Guangdong Province[2017KZDXM087] ; Project of Department of Education of Guangdong Province[2014KZDXM063] ; Natural Science Foundation of Guangdong Province[2015A030313636] ; Natural Science Foundation of Guangdong Province[2016A030313835]
WOS研究方向	Automation & Control Systems
WOS类目	Automation & Control Systems
WOS记录号	WOS:000525971000007
出版者	TAYLOR & FRANCIS 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/51209
专题	中国科学院数学与系统科学研究院
通讯作者	Wu, Ze-Hao
作者单位	1.Foshan Univ, Sch Math & Big Data, Foshan 528000, Guangdong, Peoples R China 2.Acad Sinica, Key Lab Syst & Control, Acad Math & Syst Sci, Beijing, Peoples R China 3.Univ Chinese Acad Sci, Sch Math, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wu, Ze-Hao,Guo, Bao-Zhu. Extended state observer for MIMO nonlinear systems with stochastic uncertainties[J]. INTERNATIONAL JOURNAL OF CONTROL,2020,93(3):424-436.
APA	Wu, Ze-Hao,&Guo, Bao-Zhu.(2020).Extended state observer for MIMO nonlinear systems with stochastic uncertainties.INTERNATIONAL JOURNAL OF CONTROL,93(3),424-436.
MLA	Wu, Ze-Hao,et al."Extended state observer for MIMO nonlinear systems with stochastic uncertainties".INTERNATIONAL JOURNAL OF CONTROL 93.3(2020):424-436.