The effects of shadows on power de-rating and reliability of PhotoVoltaic (PV) solar panels are discussed in this paper. The analysis is realized by means of a new model allowing the determination of the P-V characteristic of PV panels at sub-cell level. Such deep level of discretization is required to correctly evaluate the real value and location of the Maximum Power Point of PV plants under mismatched operating conditions and to detect and prevent the potentially dangerous thermal effects caused by shadows concentrated on single cells.
The Effects of Shadows on Power and Reliability of PV Panels
DI CAPUA, Giulia;FEMIA, Nicola
2012-01-01
Abstract
The effects of shadows on power de-rating and reliability of PhotoVoltaic (PV) solar panels are discussed in this paper. The analysis is realized by means of a new model allowing the determination of the P-V characteristic of PV panels at sub-cell level. Such deep level of discretization is required to correctly evaluate the real value and location of the Maximum Power Point of PV plants under mismatched operating conditions and to detect and prevent the potentially dangerous thermal effects caused by shadows concentrated on single cells.File in questo prodotto:
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