Nowadays, distributed generations (DGs) have taken a special role in power systems. Distributed generations have
received significant attention as a means to improve the performance of the electrical power system, provide low cost
energy, and increase overall energy efficiency. A problem with such generators is the unwanted islanding
phenomenon. Islanding detection an important and challenging issue to power engineers. Several methods based on
passive and active detection scheme have been proposed in the literature. While passive schemes have a large non
detection zone (_DZ), concern has been raised on active method due to its degrading power quality effect. In this
paper, a new technique to detect islanding conditions has been proposed for micro turbine (MT) as distributed
generation. The performance of the proposed method based on passive methods is much more appropriate than that of
previous methods. The simulation results performed in Simulink-MATLAB, clearly show improved operation of this
method.
کلید واژگان :
micro turbine, distributed generation, islanding phenomenon, non detection zone
