Restarting algorithms for simulation problems with discontinuities
Mohammadi, Fatemeh; Arévalo, Carmen; Führer, Claus (2014). Restarting algorithms for simulation problems with discontinuities. Tummescheit, Hubertus; Årzén, Karl-Erik (Eds.). Linköping Electronic Conference Proceedings, 819 - 826. 10th International Modelica Conference. Lund, Sweden: Linköping University Electronic Press
Conference Proceeding/Paper
|
Published
|
English
Authors:
Mohammadi, Fatemeh
;
Arévalo, Carmen
;
Führer, Claus
Editors:
Tummescheit, Hubertus
;
Årzén, Karl-Erik
Department:
Mathematics (Faculty of Engineering)
Numerical Analysis
Research Group:
Numerical Analysis
Abstract:
Modelica has in its language support for describing discontinuities; so-called events. Modern integrating environments; like Assimulo; provide elaborated event detection and event handling methods. In addition; the overall performance of a simulation of models with discontinuities (hybrid models) depends strongly on methods for restarting integration after event detection. The presented paper reviews two restarting methods; based oRunge--Kutta starters for multistep methods; and presents first experiments on a hybrid system described in Modelica and simulated by JModelica.org/PyFMI and Assimulo.
Keywords:
Events ;
discontinuities ;
hybrid systems ;
multistep method ;
Runge–Kutta method ;
simulation restart
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