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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 7/23/2014)