Modeling of an island grid

An operating model of a small electric power system grid has been developed. The power system generators are predominantly gas turbine-driven and the turbines and generators are all modeled according to the IEEE recommended models and in some cases, by models as given by various turbine manufacturers. The system model was then tested on the digital computer for various load changes. Using a developed personal computer-based data acquisition system, various operational load changes were made on the power system and the transient effect on the power system was measured. These changes were then used as inputs into the computer model of the power system and the theoretical reaction of the power system was obtained This was then compared with the measured reaction. It was found that the theoretical and the actual results compared very favorably.