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I-V curve characterisation in high-power solar cells and modules

Posted: 25 Nov 2009     Print Version  Bookmark and Share

Keywords:solar cell  solar modules  concentrator system 

Characterising both the illuminated and reverse bias regions of a solar cell or module typically requires a four-quadrant power supply, which can be expensive. Four-quadrant power supplies also provide a limited power range so they often cannot handle high power solar cells and modules. This application note explains how to configure and implement an I-V characterisation solution for high-powered solar cells, modules and cell concentrator systems. The solution is based on a DC electronic load (eload) and a single-quadrant power supply. This solution is unique in that it lets you capture the I-V curve of a cell or module under illuminated conditions and also offers the ability to characterise the dark or reverse bias region of the cell or module under test as well.

This application note covers DC electronic load basics; configuring an eload-based test system for capturing illuminated I-V curves and reverse bias I-V curves; how to optimise Agilent's N3300 electronic load family for speed or accuracy; test setup configuration options for increasing accuracy and performance; and choosing a boost supply.

View the PDF document for more information.





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