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An improvement to the low gain design for discrete‐time linear systems in the presence of actuator saturation nonlinearity
Author(s) -
Lin Zongli,
Saberi Ali,
Stoorvogel Anton A.,
Mantri Ravi
Publication year - 2000
Publication title -
international journal of robust and nonlinear control
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.361
H-Index - 106
eISSN - 1099-1239
pISSN - 1049-8923
DOI - 10.1002/(sici)1099-1239(200003)10:3<117::aid-rnc462>3.0.co;2-w
Subject(s) - control theory (sociology) , actuator , nonlinear system , saturation (graph theory) , computer science , performance improvement , high gain antenna , control engineering , control (management) , engineering , mathematics , quantum mechanics , combinatorics , artificial intelligence , operations management , physics , electrical engineering
A low‐gain design for linear discrete‐time systems subject to input saturation was recently developed to solve both semi‐global stabilization and semi‐global output regulation problems. This paper proposes an improvement to the low‐gain design and determines controllers with the new design that achieve semi‐global output regulation. The improvement is reflected in better utilization of available control capacity and consequently better closed‐loop performance. Copyright © 2000 John Wiley & Sons, Ltd.