On the Properties of Augmented Open-Loop Stable Plants Using LQG/LTR Control

Author

Guaracy, Fernando H. D. ; da Silva, Diogo L. F. ; Ferreira, Luis H. C.

Author_Institution

Syst. Eng. & Inf. Technol. Inst., Fed. Univ. of Itajuba, Itajuba, Brazil

Volume

60

Issue

8

fYear

2015

fDate

Aug. 2015

Firstpage

2172

Lastpage

2176

Abstract

In this technical note are presented new properties on the application of the continuous- and discrete-time LQG/LTR control methodology when an open-loop stable process plant is augmented by integrators and a specific choice of design parameters is made. It is shown that the target feedback loop transfer matrix is made equal to a diagonal transfer matrix of integrators with specifiable gains, guaranteeing equal and decoupled responses in each of the system´s outputs.

Keywords

continuous time systems; control system synthesis; discrete time systems; feedback; linear quadratic control; matrix algebra; open loop systems; stability; LQG control methodology; LTR control methodology; augmented open-loop stable plants; continuous-time methodology; design parameters; diagonal transfer matrix; discrete-time methodology; integrators; target feedback loop transfer matrix; Discrete-time systems; Feedback loop; Process control; Riccati equations; Sensitivity; Symmetric matrices; Time-frequency analysis; Discrete-time systems; LQG/LTR control; discrete-time systems; loop transfer recovery; robust control; target feedback loop parameterization;

fLanguage

English

Journal_Title

Automatic Control, IEEE Transactions on

Publisher

ieee

ISSN

0018-9286

Type

jour

DOI

10.1109/TAC.2014.2384751

Filename

6994262