Detector of DC Series Arc Fault in a Large Photovoltaic System using Discrete Wavelet Transform

Abstract

In this paper, the frequency analysis methods can detect the fire accident of the solar arc we propose Discrete Wavelet Transform (DWT). The DWT can express time-axis information even in the frequency domain. In case of DWT algorithm, it was implemented based on Arduino linked with MATLAM. The DC arc accident has been implemented using standard using Rogowski coil. This coil is used to simulate the current sensor for large-capacity PV system application. The constructing and simulated DC series arc generation circuit was verified under actual arc generation conditions. In addition, the performance of the accident detector manufactured was studied The experiment results and its simulation demonstrate, the proposed method is more efficient than others.