Hi,
Calculating the electromechanical modes of a power system in Simulink involves linearizing the nonlinear model around a stable operating point and then analysing the eigenvalues of the resulting linear state-space model.
You can follow the steps below:
- Simplify the Model: Simplify the model to isolate the electromechanical dynamics if possible. Remove or replace elements that contribute to fast dynamics that are not of interest.
- Consider using specialized modal analysis tools that are designed for power system stability analysis, such as Power System Analysis Toolbox (PSAT) or commercial software like PSS/E, which may offer more robust calculation of electromechanical modes.
For more information you can refer following article for more information:
