Julia package to run Dynamic Power System simulations. Part of the Scalable Integrated Infrastructure Planning Initiative at the National Renewable Energy Lab.
It is almost free to do this, but reducing the Jacobian and checking eigenvalues it may have some issues that I think is not a good idea to do by default. Maybe using a keyword to allow that can be an alternative.
Should we provide the users with info about the small-signal characteristics of the system before running?