%0 Journal Article
%T Temperature-Irradiance Matrix and Determination of Temperature Coefficients of a Monocrystalline PV Module
%A Bazkir Ozcan
%A Meric Seval
%J Open Journal of Energy Efficiency
%P 108-121
%@ 2169-2645
%D 2022
%I Scientific Research Publishing
%R 10.4236/ojee.2022.113008
%X Photovoltaic
(PV) modules performance testing and energy rating as described in IEC 61853-1
standard depend on electrical performance parameters (short-circuit current,
open-circuit voltage, maximum-power) of PV modules as a function of temperature
and irradiance. In this work, in order to precisely determine the effects of
temperature on the electrical parameters of a monocrystalline PV module, the
temperature controlled, xenon light based solar simulator system with
irradiance attenuating masks was used. This solar simulator, according to the
IEC 60904-9 standard in terms of spectral match, spatial non-uniformity and
temporal instability has A+A+A+ classes which are two times better than the
standard requirements for a solar simulator to be used in PV module
measurements. Moreover, the thermal chamber used in this work is a closed type
chamber with fast opening door for not allowing the distortion of temperature
uniformity over the surface of PV modules under test. Within about 2 m ¡Á 2 m area within 15¡ãC to
75¡ãC temperature interval, the
temperature uniformity obtained for this system is less than 1.0¡ãC which is almost two times better than the IEC
60891 standard requirements (¡À2.0¡ãC). The temperature and irradiance dependent measurements of the
electrical performance parameters of a mono-crystalline PV module at various
irradiance levels and the evaluation of its temperature coefficients [¦Á (% ¡ãC-1), ¦Â (% ¡ãC-1) and