Teaching the large synchronous generator dynamic model under unbalanced steady-state operation

This paper presents an attractive approach for teaching the large three-phase synchronous generator under unbalanced steady-state condition of the 500 kV EHV Jawa-Madura-Bali (or Jamali) system to which it is connected using Matlab´s Graphical User Interface (GUI) capability. Whereas two unbalanced steady-state conditions of the grid are obtained by setting all of IBTs (or inter bus transformers), the Jamali´s grid loads, into load imbalance of 5% and 10%. The main motivation for such a study is to develop user-friendly software for better teaching the behavior of the generator which is connected to the grid when unbalanced loads are present. An example is given to demonstrate the usefulness of the developed tool.