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Anti‐windup compensator synthesis for systems with saturation actuators
Author(s) -
Tyan Feng,
Bernstein Dennis S.
Publication year - 1995
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/rnc.4590050510
Subject(s) - control theory (sociology) , linear quadratic gaussian control , nonlinear system , controller (irrigation) , compensation (psychology) , actuator , riccati equation , saturation (graph theory) , control engineering , output feedback , linear system , computer science , mathematics , engineering , control (management) , optimal control , mathematical optimization , differential equation , biology , psychology , mathematical analysis , physics , quantum mechanics , combinatorics , artificial intelligence , psychoanalysis , agronomy
In this paper we synthesize linear and nonlinear output feedback dynamic compensators for plants with saturating actuators. Our approach is direct in the sense that it accounts for the saturation nonlinearity throughout the design procedure as distinct from traditional design techniques that first obtain a linear controller for the ‘unsaturated’ plant and then employ controller modification. We utilize fixed‐structure techniques for output feedback compensation while specifying the structure and order of the controller. In the full‐order case the controller gains are given by LQG‐type Riccati equations that account for the saturation nonlinearity.