Hybrid Simulation Using SAHISim Framework

Muhammad UsmanAwais, Wolfgang Gawlik, Gregor De-Cillia, Peter Palensky

Abstract: Hybrid systems such as Cyber Physical Systems (CPS) arebecoming more important with time. Apart from CPS thereare many hybrid systems in nature. To perform a simulationbased analysis of a hybrid system, a simulation framework ispresented, named SAHISim. It is based on the most popularsimulation interoperability standards, i.e. High Level Ar-chitecture (HLA) and Functional Mock-up Interface (FMI).Being a distributed architecture it is able to execute on clus-ter, cloud and other distributed topologies. Moreover, as itis based on standards so it allows many different simulationpackages to interoperate, making it a flexible and robustsolution for simulation based analysis. The underlying al-gorithm which enables the synchronization of different sim-ulation components is discussed in detail. A test exampleis presented, whose results are compared to a monolithicsimulation of the same model for verification of results.