Photovoltaic system DC series arc fault: a case study

<p>Photovoltaic (PV) systems are becoming increasingly popular; however, arc faults on the direct current (DC) side more widespread as a result of effects aging well trend toward higher DC voltage levels, posing severe risk to human safety and system stability. The parallel present level compared with series faults, making it difficult spot arc. In this paper for aim condition monitoring, features fault analyzed by analysing features, performing model’s simulation in PSCAD, carrying out experimental studies. Various models simulated investigated; low arcs, heuristic model is used where set parameters established. Moreover, has been shown be compatible data. noise electrode separation region steady-arcing states varied gap widths investigated. It discovered that after an occurs, increases, notably frequency range below 50 kHz; property useful detecting faults. Besides that, variations air width sensitive frequencies under 5 kHz.</p>