Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Islanding Detection Technique using Wavelet Energy in Grid-Connected PV System
Authors Hae-Chan Park ; Il-Song Kim
DOI 10.6113/TKPE/2015.20.5.471
Page pp.471-478
ISSN 1229-2214
Keywords Wavelet; Islanding detection; Photovoltaic system; Wavelet energy
Abstract The new islanding detection method using wavelet energy is proposed in this paper. The proposed method is based on the autocorrelation of the wavelet energies, which is obtained from the high-frequency components of the grid voltage. It has the enhanced detection capabilities in the UV/OV/UF/OF region, which the conventional passive methods cannot obtain. The mathematical theories on the wavelet are presented, and the performance effectiveness is proved by the experimental results.