A review of overcurrent protection methods for solar photovoltaic DC circuits

This paper investigates the current methodology for overcurrent protection in grid-connected solar photovoltaic (PV) systems. Overcurrent testing procedures for PV modules are examined. The report highlights several shortcomings in the current methodology for overcurrent protection, which may be causing premature module degradation and permanent reduction of generating capacity in PV arrays. A series of recommendations are made for improvements to the relevant guidelines and standards.