Title
Harmonic internal models for structurally robust periodic output regulation
Abstract
This note deals with the problem of output regulation for nonlinear systems in presence of periodic exogenous signals. We investigate the asymptotic properties of a controller given by an internal model designed by adding harmonics on the regulation error, and a static state feedback stabilizing the augmented system of the plant and of the internal model. The solution mimics internal model-based structures adopted for linear systems by showing the asymptotic properties that are guaranteed in the nonlinear case in presence of "generic "plant variations. Forwarding technique is adopted in the design of the stabilizer. We shed also light on the linear case by presenting a new easy-to-check condition under which the regulator equations admit a robust solution. (C)& nbsp;2022 Elsevier B.V. All rights reserved.
Year
DOI
Venue
2022
10.1016/j.sysconle.2022.105154
SYSTEMS & CONTROL LETTERS
Keywords
DocType
Volume
Robust regulation, Nonlinear control, Forwarding, Uncertain dynamic systems
Journal
161
ISSN
Citations 
PageRank 
0167-6911
0
0.34
References 
Authors
0
3
Name
Order
Citations
PageRank
Daniele Astolfi15610.42
Praly, L.21835364.39
Lorenzo Marconi384593.46