Detection of DC Arc Flash and Arc fault in DC Distribution System

Arc faults have continuously been a priority for PV systems. Rising safety standards can shortly need PV system to incorporate arc fault detection methods. Arc faults will cause fires, shock hazard, and system failure. Existing techniques that trust pattern recognition within the time domain, or amplitude detection within the frequency domain by employing a FFT Analysis, donot work well for arcs as a result of the signal to noise magnitude relation is low and also the arc signal isnot periodic. Instead, rippling remodel analysis provides a time and frequency approach to investigate target signals with multiple resolutions. During this paper, a new approach exploitation rippling remodel for arc fault detection in DC systems is planned. Simulation models are established in MATLAB 2015 simulink to check the theoretical results of the planned methodology and present conventional FFT analysis of arcing faults.