Article | Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019 | Robust and accurate co-simulation master algorithms applied to FMI slaves with discontinuous signals using FMI 2.0 features Linköping University Electronic Press Conference Proceedings
Göm menyn

Title:
Robust and accurate co-simulation master algorithms applied to FMI slaves with discontinuous signals using FMI 2.0 features
Author:
Andreas Nicolai: Faculty of Architecture, Technische Universität Dresden, Germany Anne Paepcke: Faculty of Architecture, Technische Universität Dresden, Germany Hauke Hirsch: Faculty of Architecture, Technische Universität Dresden, Germany
DOI:
10.3384/ecp19157769
Download:
Full text (pdf)
Year:
2019
Conference:
Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019
Issue:
157
Article no.:
080
Pages:
8
No. of pages:
769-776
Publication type:
Abstract and Fulltext
Published:
2019-02-01
ISBN:
978-91-7685-122-7
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


Export in BibTex, RIS or text

Error control in system simulation using co-simulation techniques is a task for the employed simulation master. With the availability of the FMI standard version 2.0 and rollback capabilities of simulation slaves, master algorithms can be implemented with support of error controlled integration. Particularly, for automated integration tools, the problem-specific dynamic adjustment of communication interval lengths becomes a necessity to obtain reliable co-simulation results while maintaining calculation efficiency. The article discusses various master algorithms and time step adjustment strategies using a test case with discontinuous input/output signals. As expected, fixed-step Gauss-Jacobi and Gauss-Seidel algorithms are found to be generally unsuited for the task. Iterationbased time step adjustment rules are an improvement, yet cannot recognize discontinuities resulting from timeevent. Since the traditional Richardson/step-doubling error estimate also fails to recognize discontinuous signal changes, a slope-based modified Richardson-test is introduced and successfully applied. Finally, it is concluded that a suitable master algorithm for such problems is the non-iterating Gauss-Seidel with modified Richardson communication interval adjustment.

Keywords: FMI, co-simulation, master algorithm, error control, adaptive

Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019

Author:
Andreas Nicolai, Anne Paepcke, Hauke Hirsch
Title:
Robust and accurate co-simulation master algorithms applied to FMI slaves with discontinuous signals using FMI 2.0 features
DOI:
http://dx.doi.org/10.3384/ecp19157769
References:
No references available

Proceedings of the 13th International Modelica Conference, Regensburg, Germany, March 4–6, 2019

Author:
Andreas Nicolai, Anne Paepcke, Hauke Hirsch
Title:
Robust and accurate co-simulation master algorithms applied to FMI slaves with discontinuous signals using FMI 2.0 features
DOI:
https://doi.org10.3384/ecp19157769
Note: the following are taken directly from CrossRef
Citations:
No citations available at the moment


Responsible for this page: Peter Berkesand
Last updated: 2019-06-04