the miniproject is to build a Matlab model of a power sysytem, with some DAG added in (this time). You may use your model from the first miniproject as your staring point.
I expect you to have wind power, or perhaps solar, or maybe even a gen-set included at some place in your model, and show waveforms of differing places and times throughout your model.
Perhaps you could add in some change in events, such as when load increases or the DAG does offline or a fault condition occurs.