python3 -m fmpy simulate  --output-file OpenIPSL_2.0.0_OpenIPSL.Examples.IEEE9.IEEE_9_Buses_res.csv --start-time 0 --stop-time 20 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.001 OpenIPSL_2_0_0_OpenIPSL_Examples_IEEE9_IEEE_9_Buses.fmu