NDLI: Non-linear estimation and observer-based output feedback control

Content Provider	IET Digital Library
Author	Batmani, Y. Khodakaramzadeh, S.
Abstract	In this study, a new observer is proposed for a class of non-linear systems which is based on an output-dependent Riccati equation. Necessary conditions for convergence of the state estimation to the system state are investigated through a theorem. Then, based on the proposed observer, two techniques are developed to solve non-linear stabilisation and non-linear tracking problems. It is shown that the separation principle between the estimation and control holds. Indeed, just like a linear system, a decentralised observer-based state feedback controller can be designed for the non-linear system while the stability of the closed-loop system is guaranteed. For the tracking problem, it is proved that the closed-loop system states converge asymptotically to the states of the desired model. Numerical simulations are given to demonstrate the effectiveness of the proposed observer and the observer-based controllers.
Starting Page	2548
Ending Page	2555
Page Count	8
ISSN	17518644
Volume Number	14
e-ISSN	17518652
Issue Number	Issue 17, Nov (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-cta/14/17
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-cta.2019.1234
Journal	IET Control Theory & Applications
Publisher Date	2020-08-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Algebra Closed Loop System Closed-loop System States Control System Analysis Control System Synthesis Decentralised Control Decentralised Observer-based State Feedback Controller Feedback Interpolation And Function Approximation Linear System Multivariable Control System Nonlinear Control System Nonlinear Estimation Nonlinear Stabilisation Nonlinear System Nonlinear Tracking Problem Numerical Analysis Observer-based Controller Observers Output-dependent Riccati Equation Riccati Equation Stability Stability in Control Theory State Estimation State Feedback Synthesis Method System State
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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