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Automated formula manipulation supports object-oriented continuous-system modeling

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2 Author(s)
Cellier, F.E. ; Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA ; Elmqvist, H.

Digital continuous-system simulation languages are discussed. It is demonstrated how sophisticated automated formula manipulation can be used to automatically generate state-space models from an object-oriented description of a physical system. The two major complications, algebraic loops and structural singularities, occur frequently as a consequence of couplings between submodels (objects), and these difficulties can often be dealt with by automated formula manipulation. A software tool, Dymola, in which the various formula manipulation techniques have been implemented, is presented. Dymola is an object-oriented continuous-system modeling language and a model manipulator that can be used to generate models in several simulation languages.<>

Published in:

Control Systems, IEEE  (Volume:13 ,  Issue: 2 )