An Assessment on Simple Modeling Approaches to the Electric Behavior of Two CIS PV Modules in a Sunny Climate

作者：Nofuentes G^*; Fuentes M; Aguilera J; Munoz J V

来源：Journal of Solar Energy Engineering-Transactions of the ASME, 2009, 131(3): 031013.

DOI：10.1115/1.3142800

• copper compounds
• indium compounds
• photovoltaic power systems
• short-circuit currents

Predicting both copper indium diselenide (CIS) module and generator performance outdoors is a crucial issue for designers and installers who use this technology. Three simple methods addressed to predict the behavior of two modules of this technology in a sunny climate have been empirically tried. A 12-month test and measurement campaign carried out using two calibrated CIS photovoltaic (PV) modules in the city of Jaeacuten (Spain, latitude 38 degrees N, longitude 3 degrees W) has provided the necessary empirical data. Results show that the electric behavior of these CIS PV modules may be described with adequate accuracy-for PV engineering in sunny sites-assuming the fill factor remains constant through operation while short-circuit current and open circuit voltage vary linearly with incident global irradiance and cell temperature, respectively. Further, degradation has been of no concern-otherwise, this would have invalidated the above conclusions-as it stems from the small difference between the results of the initial calibration and those of a recalibration of the modules after their outdoor exposure. Additionally, high values of the module performance ratio lead to the same conclusion.

• 出版日期2009-8