This study analysed the effect of temperature on parasitic resistances and photo-generated current in a solar PV
module, and the values were estimated using the Lambert W function. Similar modules of m-Si types manufactured
by different companies were used for analysis. The different m-Si PV modules, such as Yingli-manufactured m-Si,
m-Si, black solar PV module, and practically measured values of Yingli m-Si PV module’s parasitic resistance and
photo-generated current were compared to analyse the effect of temperature. The results showed that the m-Si 250-
W module was highly sensitive to temperature for measuring the shunt resistance. These changes exponentially
decreased with an increase in temperature. A gradual increase in temperature increased the corresponding series
resistance.
This analysis can be used for PV material selection under high temperature applications. This process confirms that
for similar types of PV materials, such as m-Si of different manufacturing types, PV modules may not deliver the
same output results under the same working conditions. Hence, modules must be carefully assembled in the same
system.
This study analysed the effect of temperature on parasitic resistances and photo-generated current in a solar PVmodule, and the values were estimated using the Lambert W function. Similar modules of m-Si types manufacturedby different companies were used for analysis. The different m-Si PV modules, such as Yingli-manufactured m-Si,m-Si, black solar PV module, and practically measured values of Yingli m-Si PV module’s parasitic resistance andphoto-generated current were compared to analyse the effect of temperature. The results showed that the m-Si 250-W module was highly sensitive to temperature for measuring the shunt resistance. These changes exponentiallydecreased with an increase in temperature. A gradual increase in temperature increased the corresponding seriesresistance.This analysis can be used for PV material selection under high temperature applications. This process confirms thatfor similar types of PV materials, such as m-Si of different manufacturing types, PV modules may not deliver thesame output results under the same working conditions. Hence, modules must be carefully assembled in the samesystem.
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