NDLI: Output-based disturbance rejection control for non-linear uncertain systems with unknown frequency disturbances using an observer backstepping approach

Content Provider	IET Digital Library
Author	Yang, Jun Ding, Zhengtao Chen, Wen Hua Li, Shihua
Abstract	This study is concerned with the output feedback control design for a class of non-linear uncertain systems subject to multiple sources of disturbances including model uncertainties, unknown constant disturbances, harmonic disturbances with unknown frequency and amplitude. The total disturbances and uncertainties are delicately represented by a compact exogenous model first. By incorporating the adaptive internal model principle, a set of dynamic estimators are developed for both state and disturbance observations. By means of observer backstepping technique, a composite output feedback controller is constructed based on the disturbance and state estimations. The stability of the closed-loop system is rigorously established based on Lyapunov stability criterion. A missile roll stabilisation example is finally investigated to validate the effectiveness of the proposed control approach.
Starting Page	1052
Ending Page	1060
Page Count	9
ISSN	17518644
Volume Number	10
e-ISSN	17518652
Issue Number	Issue 9, Jun (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/10/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2015.1160
Journal	IET Control Theory & Applications
Publisher Date	2016-06-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Control Adaptive Internal Model Principle Closed Loop System Closed-loop System Compact Exogenous Model Composite Output Feedback Controller Control Nonlinearities Control System Analysis Control System Synthesis Dynamic Estimator Feedback Harmonic Disturbance Lyapunov Method Lyapunov Stability Criterion Missile Roll Stabilisation Modelling And Identification Nonlinear Control System Nonlinear Uncertain System Observer Backstepping Observers Output Feedback Control Design Output-based Disturbance Rejection Control Self Adjusting Control System Simulation Stability in Control Theory State Estimation Synthesis Method Uncertain System Unknown Constant Disturbance Unknown Frequency Disturbance
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Human-Computer Interaction Electrical and Electronic Engineering Computer Science Applications

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