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Authors:Francesco Casella: Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy
Michael Sielemanny: Deutsches Zentrum für Luft- und Raumfahrt, Institute of Robotics and Mechatronics, Germany
Luca Savoldelli: Dipartimento di Elettronica e Informazione, Politecnico di Milano, Italy
Publication title:Steady-state initialization of object-oriented thermo-fluid models by homotopy methods
Conference:Proceedings of the 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany
Publication type: Abstract and Fulltext
Issue:063
Article No.:011
Abstract: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 transformation; 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.
Language:English
Keywords:Thermo-hydraulic systems; power plants; steady-state initialization problems
Year:2011
No. of pages:11
Pages:86-96
ISBN:978-91-7393-096-3
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):1650-3740
File:http://www.ep.liu.se/ecp/063/011/ecp11063011.pdf
Available:2011-06-30
Publisher:Linköping University Electronic Press; Linköpings universitet

REFERENCE TO THIS PAGE
Francesco Casella, Michael Sielemanny, Luca Savoldelli (2011). Steady-state initialization of object-oriented thermo-fluid models by homotopy methods, Proceedings of the 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany http://dx.doi.org/10.3384/ecp1106386 (accessed 12/23/2014)