Hi,
As per my understanding you are trying to choose a solver for the FMU block.
A solver applies different numerical methods to solve the set of differential equations that represent the model. However, no single method of solving a model applies to all systems.
The appropriate solver for simulating a model depends on these characteristics:
- System dynamics.
- Solution stability.
- Computation speed.
- Solver robustness.
You can choose the solver based on the dynamics of your model.
- A variable step solver is better suited for purely continuous models, like the dynamics of a mass spring damper system.
- A fixed step solver is recommended for a model that contains several switches, like an inverter power system.
For detail, please see this MathWorks documentation below for more information on “Choose a Solver”: https://www.mathworks.com/help/simulink/ug/choose-a-solver.html
You can also refer to the MathWorks documentation for more information on “Use Local Solvers in Referenced Models”:
