Mixed-mode Integration for Real-time Simulation
Schiela, A. and Olsson, H.
Mixed-mode Integration for Real-time Simulation.
In: Workshop Proceedings, pp. 69-75.
Modelica 2000 Workshop, 2000-10-23 - 2000-10-24, Lund, Sweden.
Official URL: http://www.modelica.org/workshop2000/proceedings/Schiela.pdf
The new possibilities of multi-domain hierarchical modelling often lead to models with both fast and slow parts. In this paper a new approach to simulate such systems is discussed that is especially useful in real-time applications. Mixed-mode integration represents a middle course between implicit and explicit integration. The main idea is to split up the system into a fast and a slow part and to apply implicit discretization only to the fast part. The partitioning of the system can be performed offline using a newly developed automatic selection routine, before real-time simulation starts. Mixed-mode integration was applied to several Modelica models from different fields, e.g. models of a diesel engine and an industrial robot and tested using Dymola. Speedup factors from about 4-16 were recorded. In this paper, mixed-mode integration is introduced, the selection routine is described and numerical results are presented.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Mixed-mode Integration for Real-time Simulation|
|Authors||Institution or Email of Authors|
|Olsson, H.||Dynasim AB, Sweden|
|Journal or Publication Title:||Workshop Proceedings|
|Page Range:||pp. 69-75|
|Peter Fritzson, ||UNSPECIFIED|
|Keywords:||Modelica, positioned integration, mixed-mode integration, HIL simulation, real time simulation|
|Event Title:||Modelica 2000 Workshop|
|Event Location:||Lund, Sweden|
|Event Type:||international Conference|
|Event Dates:||2000-10-23 - 2000-10-24|
|Organizer:||The Modelica Association|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Flexible Aircraft (old)|
|Institutes and Institutions:||Institute of Robotics and Mechatronics|
|Deposited On:||16 Sep 2005|
|Last Modified:||12 Dec 2013 19:01|
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