Results 91 to 100 of about 805 (183)

Geometry of Thermodynamic Processes

open access: yesEntropy, 2018
Since the 1970s, contact geometry has been recognized as an appropriate framework for the geometric formulation of thermodynamic systems, and in particular their state properties.
Arjan van der Schaft, Bernhard Maschke
doaj   +1 more source

Simultaneous Power Flow Decouple and Converter Gain Design for Electric Vehicle to Grid System

open access: yesEnergies, 2019
This paper presents a novel idea based on the Port-Hamiltonian and cascade system to control the electric vehicle-to-grid (V2G) system. Based on the proposed method, the relationship between the converter plant gain and the moment of inertia of generator
Liangcheng Cai
doaj   +1 more source

Nonlinear Disturbance Observer-Based Control for a Class of Port-Controlled Hamiltonian Disturbed Systems

open access: yesIEEE Access, 2018
In this paper, a composite control scheme is presented to asymptotically stabilize a class of port-controlled Hamiltonian systems under nonvanishing disturbances.
Baozeng Fu, Qingzhi Wang, Wei He
doaj   +1 more source

Passivity-Based Control with Disturbance Observer of Electromagnetic Formation Flight Spacecraft in the Port-Hamiltonian Framework

open access: yesApplied Sciences
Satellite formation flying technology currently represents a focal point in space mission research. Traditional spacecraft payload performance and lifespan are often constrained by propellant limitations.
Jiaming Wang   +3 more
doaj   +1 more source

A Novel Mixed Finite/Infinite Dimensional Port–Hamiltonian Model of a Mechanical Ventilator

open access: yesComputation
Mechanical ventilation is a life-saving treatment for critically ill patients who are struggling to breathe independently due to injury or disease. Globally, per year, there has always been a large number of individuals who have required mechanical ...
Milka C. I. Madahana   +2 more
doaj   +1 more source

Interconnection of port‐Hamiltonian systems with port‐Hamiltonian neural networks

open access: yesPAMM
AbstractPort‐Hamiltonian neural networks can be used to capture the interactions between small interconnected port‐Hamiltonian systems from data. We now examine different composed models and check how accurate we can train the modified composed systems.
openaire   +1 more source

Moving-Boundary Port-Hamiltonian Systems

open access: yesCoRR
In this paper, we consider linear boundary port-Hamiltonian distributed parameter systems on a time-varying spatial domain. We derive the specific time-varying Dirac structure that these systems give rise to and use it to formally establish a new class of moving-boundary port-Hamiltonian systems by showing that these distributed parameter systems on a ...
T. J. Meijer, A. Das, Siep Weiland
openaire   +2 more sources

Port-Hamiltonian Systems: Network Modeling and Control of Nonlinear Physical Systems [PDF]

open access: yes, 2004
It is shown how port-based modeling of lumped-parameter complex physical systems (multi-body systems, electrical circuits, electromechanical systems,..) naturally leads to a geometrically defined class of systems, called port-Hamiltonian systems. These are Hamiltonian systems defined with respect to a power-conserving geometric structure capturing the ...
openaire   +1 more source

Exergetic port-Hamiltonian systems for multibody dynamics

open access: yesMultibody System Dynamics
Abstract Multibody dynamics simulation plays an important role in various fields, including mechanical engineering, robotics, and biomechanics. Setting up computational models however becomes increasingly challenging as systems grow in size and complexity.
Markus Lohmayer   +2 more
openaire   +3 more sources

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