Comparison of different solutions for blocking diode applications in a photovoltaic panel under varying ambient conditions

TL;DRAbstract

We characterized a crystalline silicon based minimodule under varying ambient conditions, developed a PSPICE model for this panel, including temperature and irradiation dependence and applied this model to the simulation of the impact of a blocking diode under different ambient conditions. Different blocking diodes were examined, like germanium and silicon homojunction diodes and silicon Schottky diodes and compared to "intelligent" diodes, consisting of operational amplifiers with MOSFET switches. We calculated a strongly reduced power loss in a panel integrating the "intelligent" blocking diodes even when compared to silicon Schottky diodes with a rather low voltage drop.

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