Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Study on the Islanding Detection Technique of the Grid-Connected Photovoltaic System using Grid Voltage Harmonic Coefficients
Authors Il-Song Kim
DOI 10.6113/TKPE/2010.15.6.417
Page pp.417-424
ISSN 1229-2214
Keywords Islanding detection; Harmonic detection; PCS; DSP
Abstract This paper proposes a new islanding detection method for a grid-connected photovoltaic system. It is based on the fact that the equivalent harmonic components vary according to the grid connection status. The advantage of the proposed method is the reduced Non-Detection Zone and fast detection time. Also it can have the robust detection capability against grid disturbances. The theoretic analysis using grid-harmonic modeling is performed and verified by test result using 32-bit high performance DSP processor.