New islanding detection algorithm for wind turbine

Nowadays, renewable energies have taken a special role in power systems and most of distributed generations (DGs) in power systems also utilize these types of energy resources. Due to the their advantages, including the use of renewable energies which are not polluting environment and owning endless nature, the use of these resources to produce electrical energy in the world is increasing. A problem with such generators is the unwanted islanding phenomenon. In this paper, a new technique to detect islanding conditions has been proposed. The performance of the proposed method based on combination of passive and active method is much more appropriate than that of previous methods. The simulation results performed in MATLAB, clearly show improved operation of this method.