Comparative study on module connections to minimize degradation of photovoltaic systems due to bird droppings

초록

Bird droppings on the module surface of photovoltaic (PV) systems significantly reduce the electrical power production owing to their shading effects. However, the removal of bird droppings from the surface is difficult when the PV systems are installed in remote or offshore areas. Toward this aim, this study compared the different methods for connecting PV modules to reduce the degradation of electrical power production of PV systems due to bird droppings. For indoor experiments, 22 module configurations to connect nine modules (3 × 3) in the PV system and six different shading patterns of bird droppings were considered in this study. The results showed that the degradation effects of the PV array with the parallels connected in series were less than the other arrays. Therefore, we could suggest a module configuration method to minimize the degradation of PV systems due to bird droppings. © International Journal Of Renewable Energy Research, 2018.

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