New results on the robust stability of control systems with a generalized disturbance observer

doi:10.1002/asjc.2188

科研成果详情

发表状态	已发表Published
题名	New results on the robust stability of control systems with a generalized disturbance observer
作者	Nie, Zhuoyun 1; Wang, Qingguo2 ; She, Jinhua 3; Liu, Ruijuan 4; Guo, Dongsheng 1
发表日期	2020
发表期刊	Asian Journal of Control
ISSN/eISSN	1561-8625
卷号	22 期号:6 页码:2463-2475
摘要	A generalized disturbance observer-based (GDOB) control system and its robust stability are studied in this paper. One feature of this new GDOB scheme is that an inverse of the nominal plant in the standard DOB is no longer required. Thus, it is applicable to both minimum-phase (MP) and non-minimum-phase (NMP) plants. New conditions for robust stability are derived for two cases: plants with no right half plane (RHP) zero and plants with no RHP pole, which are in a perfect dual form. The duality reveals that the robust stability for a plant with RHP zeros is met when the Q-filter has a sufficiently large constant. This is fundamentally different from well-known results for a MP plant. The stability conditions indicate that the robustness against large uncertainties not only can be achieved by a well-selected Q-filter, but also by the reduction of mismatch between a compensated plant and a desired model. The obtained stability results provide guidelines for the control system design. This is illustrated by three examples. © 2019 Chinese Automatic Control Society and John Wiley & Sons Australia, Ltd
关键词	disturbance rejection generalized disturbance observer (GDOB) non-minimum-phase system robust stability
DOI	10.1002/asjc.2188
URL	查看来源
收录类别	SCIE
语种	英语English
WOS研究方向	Automation & Control Systems
WOS类目	Automation & Control Systems
WOS记录号	WOS:000479523400001
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://repository.uic.edu.cn/handle/39GCC9TT/4966
专题	个人在本单位外知识产出
通讯作者	Nie, Zhuoyun
作者单位	1.School of Information Science and Engineering, National Huaqiao University, Xiamen, China 2.Institute for Intelligent Systems, the University of Johannesburg, South Africa 3.School of Engineering, Tokyo University of Technology, Hachioji, Tokyo, Japan 4.School of Applied Mathematics, Xiamen University of Technology, Xiamen, China
推荐引用方式 GB/T 7714	Nie, Zhuoyun,Wang, Qingguo,She, Jinhuaet al. New results on the robust stability of control systems with a generalized disturbance observer[J]. Asian Journal of Control, 2020, 22(6): 2463-2475.
APA	Nie, Zhuoyun, Wang, Qingguo, She, Jinhua, Liu, Ruijuan, & Guo, Dongsheng. (2020). New results on the robust stability of control systems with a generalized disturbance observer. Asian Journal of Control, 22(6), 2463-2475.
MLA	Nie, Zhuoyun,et al."New results on the robust stability of control systems with a generalized disturbance observer". Asian Journal of Control 22.6(2020): 2463-2475.