Islanding Detection in a Inverter based DG source Using Harmonic Distortion

Title: Islanding Detection in a Inverter based DG source Using Harmonic Distortion
Publisher: Guru Nanak Publications
ISSN: 2278-0947
Series: Volume 5 Issue 1
Authors: Abbineni Sai Subhadra, Dr. P. Linga Reddy, Shailesh B. Modi


Abstract

The decisive problem in distributed generation is islanding. The detection of islanding phenomenon having a great importance. These detection methods are classified as local and remote islanding detection. These two methods are based on changing in parameters such as frequency, voltage and current harmonics. But these methods have some challenges such as reduction in power quality and large Non Detection Zone (NDZ). In this paper, the proposed method relies on the variations of active, reactive power, current-voltage phase shifts and THD value of voltage waveform at PCC will be studied for islanding detection diagnosis. The studied system was considered by following the standard IEEE-1547 and UL- 1741.The system was simulated using MATLAB/ SIMULINK.

Keywords

Distributed Generation (DG), Gridconnected, Islanding detection, Non Detection Zone, Point of common coupling (PCC), Reactive power output, Total harmonic distortion (THD)

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