Translation of Solar Cell Performance for Irradiance and Temperature From a Single I-V Curve Without Advance Information of Translation Parameters

A practical and accurate procedure for translating the current-voltage (I-V) curves of photovoltaic devices for irradiance and temperature is proposed. The procedure requires only a single experimental I-V curve with no advance information of the translation parameters when the devices follow the single-diode model. The parameters used in the translation, such as the series resistance R
₅
and diode ideality factor n, are extracted from the experimental I-V curve. A voltage-dependent temperature coefficient of the I-V curve, which was recently proposed by the authors, is used for accurate temperature translation. The procedure is shown to be applicable to many commercial crystalline silicon PV modules in wide irradiance and temperature ranges of 0.15-1.1 kW/m
²
and 10-65 °C, respectively, with typical accuracy within ±1%-2%.