Toward an Accurate and Fast Hybrid Multi-Simulation with the FMI-CS Standard

Jean-Philippe Tavella (1) , Mathieu Caujolle (1) , Stéphane Vialle (2, 3, 4) , Cherifa Dad (2, 3, 4) , Charles Tan (1) , Gilles Plessis (1) , Mathieu Schumann (1) , Arnaud Cuccuru (5) , Sebastien Revol (5)

1 EDF - EDF
2 Georgia Tech Lorraine [Metz]
3 CentraleSupélec
4 Université Paris-Saclay
5 DILS - Département Ingénierie Logiciels et Systèmes

Multi-simulation in the context of future smart electrical grids consists in associating components modeling different physical domains, but also their local or global control. Our DACCOSIM multi-simulation environment is based on the version 2.0 of the FMI-CS (Functional Mock-up Interface for Co-Simulation) standard maintained by the Modelica Association. It has been specifically designed to run large-scale and complex systems on a single PC or a cluster of multicore nodes. But it is quite challenging to accurately simulate FMUs-composed systems involving predictable and unpredictable events while preserving the system overall performance. This paper presents some additions to the FMI-CS standard aiming to improve the accuracy and the performance of distributed multi-simulations involving a mix of both time steps and various kinds of events. The proposed FMI-CS primitives are explained, as well as the Master Algorithm strategies to exploit them efficiently.

Keywords: FMI standard; co-simulation; DACCOSIM; accuracy; speedup; distributed architecture

Domains: Modeling and Simulation

Jean-Philippe Tavella, Mathieu Caujolle, Stéphane Vialle, Cherifa Dad, Charles Tan, et al.. Toward an Accurate and Fast Hybrid Multi-Simulation with the FMI-CS Standard. 21 st International Conference on: Emerging Technologies and Factory Automation (ETFA-2016), Sep 2016, Berlin, Germany. ⟨hal-01371499⟩