Title :
Modeling of differential-algebraic thermofluid systems using singularly perturbed dynamics
Author :
Gordon, Brandon W. ; Liu, Sheng
Abstract :
Dynamic systems described by an implicit mixed set of differential and algebraic equations (DAEs) frequently arise when modeling thermofluid control systems. This paper describes a general approach based on singular perturbation analysis for adding fast dynamics to a system of DAEs so that they can be expressed in an explicit state space form. Conditions for convergence and approximation methods are investigated. The approach is illustrated for a model of a two-phase flow heat exchanger
Keywords :
algebra; differential equations; flow control; singularly perturbed systems; thermal variables control; DAE; algebraic equations; approximation; convergence; differential equations; differential-algebraic thermofluid system modeling; explicit state space form; singularly perturbed dynamics; thermofluid control systems; two-phase flow heat exchanger; Approximation methods; Bonding; Convergence; Damping; Energy storage; Frequency; Information systems; Nonlinear dynamical systems; Shock absorbers; State-space methods;
Conference_Titel :
American Control Conference, 1998. Proceedings of the 1998
Conference_Location :
Philadelphia, PA
Print_ISBN :
0-7803-4530-4
DOI :
10.1109/ACC.1998.703575
