Islanding Detection technique using DWT in the PV system

이산 웨이블렛을 이용한 태양광발전시스템의 단독운전 검출

In this paper, discrete wavelet transform using a PV system covers how the detection of a islanding. Connection point occur exclusively in Grid when the grid voltage and current operation of the wavelet coefficients by changing features will determine if islanding operation. The proposed method has simple computation and fast decision time has the advantage. DSP-based controller through the experiment proved the validity of the proposed method.