Sorting of solar cells is a vital step to achieve the predetermined power out of the photovoltaic module, nevertheless there is a lack of detailed investigations of all relevant parameters defining the global module efficiency. Sorting methods tend to rely on simple electrical parameters such as PMAX, IMPP, and ISC. However, it is crucial to take into consideration that the performance of individual cells will be changed after the encapsulation. Therefore, in t. Sorting of solar cells is a vital step to achieve the predetermined power out of the photovoltaic module, nevertheless there is a lack of detailed investigations of all relevant parameters defining the global module efficiency. Sorting methods tend to rely on simple electrical parameters such as PMAX, IMPP, and ISC. However, it is crucial to take into consideration that the performance of individual cells will be changed after the encapsulation. Therefore, in this study potential changes in operating parameters such as JSC and Rser are integrated in the sorting step. It is a fact that at low light intensities the impact of Rshunt on module performance is more critical compared to standard test conditions (STC) where the actual measurements are carried out. In addition, the optical parameters of cells are subject to change after the encapsulation. That is why, inclusion of optical parameters such as reflectance into the sorting step is analysed. In this study, innovative sorting methods with the inclusion of Rshunt and reflectance were introduced. The results show that, at low light intensities conventional sorting approach can be extended with a combination of Rshunt and other electrical parameters to achieve higher module efficiencies up to 0.1% absolute. In addition, adding optical reflectance into the sorting parameters set current mismatches in modules can be minimized.••Cell sortingModule simulationLow-light behaviorEnergy Procedia 27 ( 2012 ) 685 – 690 1876-6102 2012 Published by Elsevier Ltd. Selection and peer-review under responsibility of the scientifi c committee of the SiliconPV 2012 conference. doi: 10.1016/j.egypro.2012.07.130 SiliconPV: April 03-05, 2012, Leuven, Belgium Simulation and analysis of PV module performance by innovative sorting methods U. A. Yusufoglu a*, B. Min, T. M. Pletzer, J. I. van Mölken, H. Kurz Institute of Semiconductor Electronics, RWTH Aachen, Sommerfeldstrasse 24, D-52074 Aachen, Germany Abstract Sorting of solar cells is a vital step to achieve the predetermined power out of the photovoltaic module, nevertheless there is a lack of detailed investigations of all relevant parameters defining the global module efficiency. Sorting methods tend to rely on simple electrical parameters such as P MAX, I MPP, and I SC. However, it is crucial to take into consideration that the performance of individual cells will be changed after the encapsulation. Therefore, in this study potential changes in operating parameters such as J SC and R ser are i. 1.P. Grunow, S. Lust, D. Sauter, V. Hoffmann, C. Beneking, B. Litzenburger, et al.Weak light performance and annual yields of PV modules and systems as a result of the basic parameter set of industrial solar cellsProceedings of the 19th EU PVSEC, Paris, France (2004), pp. 2190-2193Google Scholar2.N.E. Powell, B.K. Hwang, A.W. Norris, B.M. Ketola, G. Beaucame, K.R. McIntoshImproved spectral response of silicone encapsulated photovoltaic F modulesProceedings of the 35th PVSC. Honolulu HI U.S.A. (2010), pp. 2791-2794View in ScopusGoogle ScholarCopyright © 2012 Published by Elsevier Ltd.
