Analysis of photovoltaic modules with protection diodes in presence of mismatching

Simulation was used to investigate the electrical status of photovoltaic (PV) array components in mismatching conditions, leading to general rules for shaded PV array modules with bypass diodes. In particular, it is shown that, for a given PV array, load, and shading ratio (SR), there is a critical load point that identifies a load current (or load voltage) beyond (or below) which the diode securely goes into operation. The values of dissipated...