Stokes-Lagrange and Stokes-Dirac representations of $N$-dimensional port-Hamiltonian systems for modelling and control

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Hauptverfasser: Bendimerad-Hohl, Antoine, Haine, Ghislain, Lefèvre, Laurent, Matignon, Denis
Format: Preprint
Veröffentlicht: 2024
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author Bendimerad-Hohl, Antoine
Haine, Ghislain
Lefèvre, Laurent
Matignon, Denis
author_facet Bendimerad-Hohl, Antoine
Haine, Ghislain
Lefèvre, Laurent
Matignon, Denis
contents In this paper, we extend the port-Hamiltonian framework by introducing the concept of Stokes-Lagrange structure, which enables the implicit definition of a Hamiltonian over an $N$-dimensional domain and incorporates energy ports into the system. This new framework parallels the existing Dirac and Stokes-Dirac structures. We propose the Stokes-Lagrange structure as a specific case where the subspace is explicitly defined via differential operators that satisfy an integration by parts formula. By examining various examples through the lens of the Stokes-Lagrange structure, we demonstrate the existence of multiple equivalent system representations. These representations provide significant advantages for both numerical simulation and control design, offering additional tools for the modelling and control of port-Hamiltonian systems.
format Preprint
id arxiv_https___arxiv_org_abs_2412_04499
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Stokes-Lagrange and Stokes-Dirac representations of $N$-dimensional port-Hamiltonian systems for modelling and control
Bendimerad-Hohl, Antoine
Haine, Ghislain
Lefèvre, Laurent
Matignon, Denis
Optimization and Control
Dynamical Systems
Functional Analysis
93C20, 37K06, 74K20, 35Q61
In this paper, we extend the port-Hamiltonian framework by introducing the concept of Stokes-Lagrange structure, which enables the implicit definition of a Hamiltonian over an $N$-dimensional domain and incorporates energy ports into the system. This new framework parallels the existing Dirac and Stokes-Dirac structures. We propose the Stokes-Lagrange structure as a specific case where the subspace is explicitly defined via differential operators that satisfy an integration by parts formula. By examining various examples through the lens of the Stokes-Lagrange structure, we demonstrate the existence of multiple equivalent system representations. These representations provide significant advantages for both numerical simulation and control design, offering additional tools for the modelling and control of port-Hamiltonian systems.
title Stokes-Lagrange and Stokes-Dirac representations of $N$-dimensional port-Hamiltonian systems for modelling and control
topic Optimization and Control
Dynamical Systems
Functional Analysis
93C20, 37K06, 74K20, 35Q61
url https://arxiv.org/abs/2412.04499