Novel Sampled-Output Feedback Controller Guaranteeing Lyapunov Stability for Continuous-Time Uncertain Nonautonomous Nonlinear Systems

被引：0
|
作者：
Park, Jang-Hyun [1 ]
机构：
[1] Mokpo Natl Univ, Dept Elect Engn, Muan, South Korea
来源：
IEEE CONTROL SYSTEMS LETTERS | 2024年 / 8卷
关键词：
Vectors; Nonlinear systems; Uncertainty; Time-varying systems; Linear systems; Transient analysis; Time measurement; Sampled-data control; nonlinear output feedback; stability of nonlinear systems;
D O I：
10.1109/LCSYS.2024.3464331
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel output-feedback digital controller designed for continuous-time completely unknown nonlinear systems with inherent uncertainties is proposed in this letter. It addresses a broad class of general time-varying nonlinear systems characterized by significant unstructured uncertainties. Unlike previous methods, this controller does not require discretization of the controller or the controlled plant and is not limited to specific systems like Lur'e-type systems or upper-triangular nonlinear plants. Leveraging a discrete differentiator, it is rigorously demonstrated that the proposed digital control input, processed through a zero-order hold, ensures Lyapunov stability of the hybrid closed-loop system.
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页码：2271 / 2276
页数：6
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