说明：  Utility restructuring, technology evolution, public environmental policy, and expanding power demand are providing the opportunity for microturbines to become important energy resources. In order to investigate the ability of microturbine units in distribution systems, new simulation tools are needed. This paper presents a dynamic models for microturbines. For the purpose of modeling initialy a dynamic model for each component in the system, including gas turbine, permanent magnet generator, DC bridge rectifier and power inverter is developed and after this stage the model is implemented in a simulation software. In this research the simulation tool is Matlab/Simulink. Also the systems stand-alone dynamic performances is analyzed and evaluated.