Simulating Modelica models with a Stand--Alone Quantized State Systems Solver

FEDERICO BERGERO; XENOFON FLOROS; JOAQUIN FERNANDEZ; ERNESTO KOFMAN; FRANCOIS CELLIER

Munich

Conferencia; 9 th International Modelica Conference; 2012

This article describes an extension of the OpenModelicaCompiler that translates regular Modelica models into a simpler language, called MicroModelica (μ--Modelica), that can be understood by the recently developed stand?alone Quantized State Systems (QSS) solvers. These solvers are very efficient when simulating systems with frequent discontinuities. Thus, strongly discontinuous Modelica modelscan be simulated noticeably faster than with the standard discrete time solvers. The simulation of two discontinuous models is analyzed in order to demonstrate the correctness of the proposed implementation as well as the advantages of using the QSS stand-alone solvers.