Building Hybrid Automata of Complex Physical Systems for Real-time Applications
Mosterman, P. J. and Biswas, G.
Building Hybrid Automata of Complex Physical Systems for Real-time Applications.
In: Proceedings of the Conference on Decision and Control, pp. 3514-3519.
Conference on Decision and Control, 1999-12, Phoenix.
Dynamic behavior of complex physical systems is often nonlinear and includes multiple temporal scales. Singular perturbation methods decouple the fast and slow behavior and by assuming that the fast behavior is at a quasi steady state, the slow behavior of the system can be analyzed. The decoupling reduces the complex system of ordinary differential equations (ODEs) to simpler ODEs that allow fixed time step integration methods, and, therefore, are suitable for real-time applications. This model reduction may cause discontinuous jumps in the initial values of model variables. This paper applies and extends singular perturbation methods to compute discontinuous state changes for piecewise continuous, hybrid, models when the model configuration changes. Computing the explicit state change allows the use of hybrid automata as modeling framework when augmented with execution semantics for state vector updates around discontinuities.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Building Hybrid Automata of Complex Physical Systems for Real-time Applications|
|Authors||Institution or Email of Authors|
|Mosterman, P. J.||UNSPECIFIED|
|Biswas, G.||Vanderbilt University, Nashville|
|Journal or Publication Title:||Proceedings of the Conference on Decision and Control|
|Page Range:||pp. 3514-3519|
|Keywords:||singular perturbation; model reduction; hybrid systems; real time simulation; physical modeling|
|Event Title:||Conference on Decision and Control|
|Event Type:||international Conference|
|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 20:01|
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