Tarbiat Modares University The Modares Journal of Electrical Engineering 2228-527X 10 1 2010 04 01 Anti-Islanding Protection of Grid Connected Distributed Generators حفاظت ضدجزیره‌ای شبکه‌های مجهز به منابع تولید پراکنده 107 97 12886 EN Syed Saeed Mohtavipour Tarbiat Modares University Mohsen Parsa Moghadam Tarbiat Modares University Mahmood Reza Haghifam Tarbiat Modares University Journal Article A critical protection requirement for grid connected distributed generators (DG) is anti-islanding protection. In this paper, a new islanding detection method for any possible network loading is proposed based on utilizing and combining various system parameter indices. In order to secure the detection of islanding, eight intentional disturbances are imposed to the system under study in which two sets of them simulate the islanding condition. The proposed technique uses the adaptive notch filters for extracting the frequency of oscillation of generator’s output waveform as one of the output parameter indices. An advantage of this technique is that it does not necessitates varying the islanding detection boundaries under various system loading conditions. Islanding Detection Distributed Generator Adaptive notch filter https://mjee.modares.ac.ir/article_12886_aed8c38949e3efc60bb86697f5c07c98.pdf