This paper presents the modeling and simulation of a

high-speed single-shift micro turbine generation system. This

unit has four parts: a compressor-turbine, a permanent magnet

generator, a three phases bridge rectifier and inverter. The

model is built from the dynamics of each part with their

interconnections, and two different control strategies suitable

respectively for isolated and grid-connected operation were

developed. Finally, simulation studies have been carried out

under a stepped load. The model is developed in the

MATLAB/Simulink (Matlab 2007a) and implemented in Power

system Toolboxes. This model is a useful tool for studying the

various operational aspects of micro turbines