Title |
Study on the Islanding Detection Technique of the Grid-Connected Photovoltaic System using Grid Voltage Harmonic Coefficients |
DOI |
10.6113/TKPE/2010.15.6.417 |
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. |