Reference module selection criteria for accurate testing of photovoltaic (PV) panels

It is shown that for accurate testing of PV panels the correct selection of reference modules is important. A detailed description of the test methodology is given. Three different types of reference modules, having different I SC (short circuit current) and power (in Wp) have been used for this stu...

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Veröffentlicht in:Solar energy 2010-01, Vol.84 (1), p.32-36
Hauptverfasser: Roy, J.N., Gariki, Govardhan Rao, Nagalakhsmi, V.
Format: Artikel
Sprache:eng
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Zusammenfassung:It is shown that for accurate testing of PV panels the correct selection of reference modules is important. A detailed description of the test methodology is given. Three different types of reference modules, having different I SC (short circuit current) and power (in Wp) have been used for this study. These reference modules have been calibrated from NREL. It has been found that for accurate testing, both I SC and power of the reference module must be either similar or exceed to that of modules under test. In case corresponding values of the test modules are less than a particular limit, the measurements may not be accurate. The experimental results obtained have been modeled by using simple equivalent circuit model and associated I– V equations.
ISSN:0038-092X
1471-1257
DOI:10.1016/j.solener.2009.09.007