Title
Reduced Order LQG Control Design for Infinite Dimensional Port Hamiltonian Systems
Abstract
This article proposes a method that combines linear quadratic Gaussian (LQG) control design and structure preserving model reduction for the reduced order control of infinite dimensional port Hamiltonian systems (IDPHS).For that purpose the weighting operators used in LQG control design are chosen such that the resulting dynamic controller is passive and the closed-loop system equivalent to control by interconnection. The method of Petrov-Galerkin is then used to approximate the balanced realization of the IDPHS by a finite dimensional port Hamiltonian system and to provide the associated reduced order LQG controller. The main advantages of the proposed method are that, first, both control and reduction are driven by closed-loop performances and that, second, due to the passivity properties of the controller the closed-loop stability is guaranteed when the finite dimensional controller is applied to the infinite dimensional system.
Year
DOI
Venue
2021
10.1109/TAC.2020.2997373
IEEE Transactions on Automatic Control
Keywords
DocType
Volume
Controller reduction,infinite dimensional systems,linear quadratic Gaussian (LQG) method,model reduction,port Hamiltonian systems (PHS)
Journal
66
Issue
ISSN
Citations 
2
0018-9286
0
PageRank 
References 
Authors
0.34
8
4
Name
Order
Citations
PageRank
Yongxin Wu111.73
Boussad Hamroun272.13
Yann Le Gorrec34311.22
Bernhard Maschke451883.42