Building a model library in Modelica - case study: Sundsbarm Power Plant

Abstract

Modelica is rapidly developing programing language that allows building models of dynamic systems and analysing their operations. One of such systems is power plant, that requires constant regulation, optimization and has continuously changing parameters, that makes Modelica application practically oriented. For this one of the Modelica free programing environments, OpenModelica and JModelica, that allows studying of the dynamic systems with support via Pyhton or MATLAB, will be used. But previously basic units of modeled hydro power plant system need to be revised, their possible working regimes, studied and possibility of their realization with a help of Modelica units checked. It is also of interest to implement possible switching options between systems’ parts and coordination between them, for which also different level of specification can be implemented. Both steady and dynamics states are revised from modeling and simulation points of view. Possible challenges while Modelica usage are discussed. The values that are used for model library testing are taken from Sundsbarm power plant.