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Steady-state initialization of object-oriented thermo-fluid models for homotopy methods

Casella, Francesco and Sielemann, Michael and Savoldelli, Luca (2011) Steady-state initialization of object-oriented thermo-fluid models for homotopy methods. In: Proceedings of 8th International Modelica Conference. 8th International Modelica Conference, 20.-22. Mrz 2011, Dresden.

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The steady-state initialization of large object-oriented thermo-hydraulic networks is a difficult problem, because of the sensitivity of the convergence to the initial guesses of the iteration variables. This paper proposes an approach to this problem based on homotopy transforamtion, detailing specific criteria for model simplifications in this physical domain. The approach is successfully demonstrated on large power plant test cases, having several hundreds of iteration variables.

Item URL in elib:https://elib.dlr.de/73048/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Steady-state initialization of object-oriented thermo-fluid models for homotopy methods
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Casella, FrancescoPolitecnico di MilanoUNSPECIFIED
Sielemann, MichaelMichael.Sielemann (at) DLR.deUNSPECIFIED
Savoldelli, LucaPolitecnico di MilanoUNSPECIFIED
Journal or Publication Title:Proceedings of 8th International Modelica Conference
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:thermo-hydraulic systems, power plants, steady-state initialization problems.
Event Title:8th International Modelica Conference
Event Location:Dresden
Event Type:international Conference
Event Dates:20.-22. Mrz 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems & Cabin (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Robotics and Mechatronics (until 2012) > System Dynamics and Control (former Control Design Engineering)
Deposited By: Klauer, Monika
Deposited On:15 Dec 2011 17:36
Last Modified:12 Dec 2013 21:30

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