Effect of Solar Cell Parameter Variation on Array Power Output

摘要

Array maximum power is affected by variations in cell series resistance, cell photon generated current, and cell temperature. These parameters were considered independent and the effect of their variation on array performance was investigated using a combination of analysis techniques and a computer circuit simulation program, SPICE. Results indicate that for series connected arrays, variations around a mean of cell series resistance and cell operating temperature insignificantly affect array maximum power. However, variations in cell photon generated current significantly affects power output as array current is limited by the weakest cell. Universal curves are presented which allow these results to be applied to a variety of arrays. (ERA citation 03:047074)