Dynamic model of a microturbine used as a distributed generator

In this paper, a dynamic model of a microturbine, used as distributed generator, is developed. The model is suitable for transient analysis and simulation of an unbalanced three-phase power system. A microturbine unit consists of four parts: a gas turbine engine, a permanent magnet generator, a three-phase bridge AC to DC rectifier, and a power DC to AC inverter. The proposed model is built from the dynamics of each part and their interconnections. To illustrate the proposed model, an unbalanced 3-phase system that consists of a microturbine generator connected to a load is simulated using the Matlab Simulink Toolbox and power system blockset.