Optical model for multilayer glazing systems: Experimental validation through the analytical prediction of encapsulation-induced variation of PV modules efficiency
Date
2016-10Keywords
Optical model
Encapsulation
Absorptivity
Short-circuit current
Abstract
A simple analytical calculation based on a transfer matrix method for incoherent optics, allowing the prediction
of photovoltaic module efficiencies in different encapsulation conditions is presented. This
approach is used for the experimental validation of the main features of the optical model for multilayer
glazing systems considered, through the relation between the external quantum efficiency of the module
and its optical modeling. The theoretical procedure avoids the need to manufacture and characterize by
solar simulator or external quantum efficiency measurements all the variety of photovoltaic module configurations,
which is of interest at research and manufacturing levels, especially for building-integrated
photovoltaics.
The absorptivity of encapsulated solar cells is not directly accessible from direct air-bare cell or airencapsulated
cell optical measurements, and therefore analytical or numerical methods are generally
needed. The calculations presented in this ...
Type
article