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Restarting algorithms for simulation problems with discontinuities

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Author

Editor

  • Hubertus Tummescheit
  • Karl-Erik Årzén

Summary, in English

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.

Department/s

Publishing year

2014

Language

English

Pages

819-826

Publication/Series

Linköping Electronic Conference Proceedings

Document type

Conference paper

Publisher

Linköping University Electronic Press

Topic

  • Mathematics

Keywords

  • Events
  • discontinuities
  • hybrid systems
  • multistep method
  • Runge–Kutta method
  • simulation restart

Conference name

10th International Modelica Conference

Conference date

2014-03-10 - 2014-03-12

Conference place

Lund, Sweden

Status

Published

Project

  • LCCC

Research group

  • Numerical Analysis

ISBN/ISSN/Other

  • ISBN: 978-91-7519-380-9