Simulation with multiple FMUs

[kosmylo]

As I understood by inspecting the example of fmi_gym, it is only possible to use one FMU for control in this framework. My aim is to control a battery model exported as FMU, which is located in a large power network. For this purpose, I need my observation space to include quantities outside of the battery FMU. For example, if my battery is located in a bus with a photovoltaic connected (which is also another FMU) to be able to include its power in the observation space.

Is something like that possible? Would it be possible with some modifications?

[ChristophGehbauer]

Hi Kosmylo,
Thank you very much for your comment. You are right, as of now FMI-MLC only supports a single FMU. While this might change in future, I can see a path forward for you. You can wrap the system of FMUs into a single FMU:

• This could be done either through an export tool (for example Dymola/Modelica) where you can import your FMUs, link them, and then export the whole system as a single FMU
• Or use the Python-based SimulatorToFMU to import and link your FMUs through Python, and then export as a single FMU

I hope this helps and good luck,
Christoph