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On Convergence of Extended State Observer for a Class of MIMO Uncertain Stochastic Nonlinear Systems

文献类型：期刊论文

作者Wu, Zehao3; Huang, Guoshun3; Wu, Chufen3; Lv, Chunwan3; Bao, Lingxin1,2
刊名IEEE ACCESS
出版日期2018
卷号6页码:37758-37766
关键词Extended state observer active disturbance rejection control MIMO systems stochastic uncertainties convergence
ISSN号2169-3536
DOI10.1109/ACCESS.2018.2849199
英文摘要Extended state observer (ESO) is the key part of active disturbance rejection control, a new control strategy motivated and developed highly from PID's model-free feature. In this paper, both constant gain ESO and time-varying gain ESO are proposed for a class of multi-input multi-output uncertain stochastic nonlinear systems subject to vast stochastic uncertainties. The total stochastic uncertainties in each subsystem including unmodeled dynamics, unknown stochastic inverse dynamics, external stochastic disturbance without known statistical characteristics, and uncertain nonlinear interactions between subsystems are regarded as the stochastic total disturbance (extended state) of each subsystem of the plant. The constant gain ESO and time-varying gain ESO are designed for the estimation of not only the unmeasured state but also the stochastic total disturbance of each subsystem in real time, and the corresponding mean square convergence of these two classes of ESOs are developed rigorously. Some numerical simulations are presented to demonstrate the effectiveness of estimation by ESO approach and the peaking value reduction by the time-varying gain ESO.
资助项目Natural Science Foundation of China[11501108] ; Natural Science Foundation of Guangdong Province[2015A030313636] ; 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[2017KQNCX209]
WOS研究方向Computer Science ; Engineering ; Telecommunications
语种英语
WOS记录号WOS:000439699300002
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
源URL[http://ir.amss.ac.cn/handle/2S8OKBNM/33392]  
专题中国科学院数学与系统科学研究院
通讯作者Bao, Lingxin
作者单位1.Chinese Acad Sci, Acad Math & Syst Sci, Key Lab Syst & Control, Beijing 100190, Peoples R China
2.Fujian Agr & Forestry Univ, Sch Comp & Informat, Fuzhou 350002, Fujian, Peoples R China
3.Foshan Univ, Sch Math & Big Data, Foshan 528000, Peoples R China
推荐引用方式
GB/T 7714		 Wu, Zehao,Huang, Guoshun,Wu, Chufen,et al. On Convergence of Extended State Observer for a Class of MIMO Uncertain Stochastic Nonlinear Systems[J]. IEEE ACCESS,2018,6:37758-37766.
APA Wu, Zehao,Huang, Guoshun,Wu, Chufen,Lv, Chunwan,&Bao, Lingxin.(2018).On Convergence of Extended State Observer for a Class of MIMO Uncertain Stochastic Nonlinear Systems.IEEE ACCESS,6,37758-37766.
MLA Wu, Zehao,et al."On Convergence of Extended State Observer for a Class of MIMO Uncertain Stochastic Nonlinear Systems".IEEE ACCESS 6(2018):37758-37766.

入库方式： OAI收割

来源：数学与系统科学研究院

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