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An Overview on Irreversible Port-Hamiltonian Systems [PDF]

open access: yesEntropy, 2022
A comprehensive overview of the irreversible port-Hamiltonian system’s formulation for finite and infinite dimensional systems defined on 1D spatial domains is provided in a unified manner.
Hector Ramirez, Yann Le Gorrec
doaj   +2 more sources

Research on rehabilitation robot control based on port-Hamiltonian systems and fatigue dissipation port compensation [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology
IntroductionUpper-limb rehabilitation robots have been demonstrated to effectively promote motor recovery in stroke patients. However, in active training modes, control instability may be induced by the nonlinear and time-varying characteristics of ...
Jingjing Li   +9 more
doaj   +2 more sources

Port-Hamiltonian framework in power systems domain: A survey

open access: yesEnergy Reports, 2023
Many nonlinear physical phenomena, including various power systems, can be modeled, analyzed, and controlled using the framework of port-Hamiltonian systems.
Maris Tõnso   +2 more
doaj   +3 more sources

From Dirac Structures to Port-Hamiltonian Partial Differential Equations, a Tutorial Introduction [PDF]

open access: yesEntropy
In this paper, we discuss the geometric structure, i.e., Dirac structure, underlying port-Hamiltonian systems. The paper has a tutorial character, and thus it contains questions/exercises.
Hans Zwart
doaj   +2 more sources

Structure-preserving model reduction for port-Hamiltonian systems based on separable nonlinear approximation ansatzes

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
We discuss structure-preserving model order reduction for port-Hamiltonian systems based on a nonlinear approximation ansatz which is linear with respect to a part of the state variables of the reduced-order model.
Philipp Schulze
doaj   +1 more source

A Reversible Hydropump–Turbine System

open access: yesApplied Sciences, 2022
Water-pumped storage systems have become an ideal alternative to regulate the intermittent power delivered by renewable energy sources. For small-scale operations, a type of centrifugal pump coupled to asynchronous machines represents an adequate ...
Luis Miguel Esquivel-Sancho   +3 more
doaj   +1 more source

Robust Fault-Tolerant Control for Stochastic Port-Hamiltonian Systems against Actuator Faults

open access: yesMathematics, 2022
Exploiting the stochastic Hamiltonian structure, this paper investigates the robust fault-tolerant control (FTC) for stochastic port-Hamiltonian systems (SPHSs) with actuator faults.
Song Xu, Wei Wang, Sheng-Yuan Chen
doaj   +1 more source

Port-Hamiltonian Modeling of Multiphysics Systems and Object-Oriented Implementation With the Modelica Language

open access: yesIEEE Access, 2020
In this article we present the implementation in Modelica language of a library with the fundamental components for modeling a wide variety of multiphysics systems.
Francisco M. Marquez   +2 more
doaj   +1 more source

Port-Hamiltonian fluid–structure interaction modelling and structure-preserving model order reduction of a classical guitar

open access: yesMathematical and Computer Modelling of Dynamical Systems, 2023
A fluid–structure interaction model in a port-Hamiltonian representation is derived for a classical guitar. After discretization, we combine the laws of continuum mechanics for solids and fluids within a unified port-Hamiltonian (pH) modelling approach ...
Johannes Rettberg   +6 more
doaj   +1 more source

Time-domain Dynamic State Estimation for Unbalanced Three-phase Power Systems

open access: yesJournal of Modern Power Systems and Clean Energy, 2023
In this paper, we present a time-domain dynamic state estimation for unbalanced three-phase power systems. The dynamic nature of the estimator stems from an explicit consideration of the electromagnetic dynamics of the network, i.e., the dynamics of the ...
Martin Pfeifer   +5 more
doaj   +1 more source

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