Detection and Analysis of Islanding Phenomena in Distributed Generation Systems

Author(s)	Mr. Ramswarup Kumar, Mr. Thakur Pranav Kumar Gautam, Ms. Monalisa Bhadra, Mr. Navneet Keshav, Mr Shivdas Chandra, Dr. Anamika Das
Country	India
Abstract	Distributed generation has gained significant importance in the modern power industry. The impact on power system operation becomes more critical as the share of distributed energy resources in electricity production continues to increase. With the growing integration of Distributed Generators (DGs) into power systems, the occurrence of islanding has emerged as a major concern. Islanding occurs when a section of the distribution network becomes electrically isolated from the main grid while the DG units within that isolated section continue to supply power to the connected local loads. In this study, islanding detection in a distributed generation system is carried out using the wavelet transform technique. The method relies on the analysis of the negative sequence components of voltage and current signals. The islanding event is identified by examining the level-1 detailed wavelet coefficient (d1), which clearly highlights the occurrence of the disturbance and enables effective detection of the islanding condition.
Keywords	Keywords: Distributed Generation (DG), Wavelet Transform, Islanding, Negative Sequence Component (NSC)
Field	Engineering
Published In	Volume 8, Issue 2, March-April 2026
Published On	2026-03-17

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