Abstract
An accurate and straightforward estimation of solar cells and modules parameters from the manufacturer’s datasheet is essential for the performance assessment, simulation, design, and quality control. In this work, a simple and efficient technique is reported to extract the parameters of solar cells and modules, namely ideality factor (n), series resistance (Rs), shunt resistance (Rsh), photocurrent (Iph) and saturation current (Io), from datasheet information. The method is based on defining the peak position of the function f(n, Rsh) = n(Rsh _ max − Rsh), at which the five parameters are extracted. It was validated on four different technologies of solar cells and modules, including Poly-Si, Mono-Si, thin film and multijunction. Results showed that a simple and efficient extraction of the parameters can be realized by using this technique compared to that of the reported methods in literature.
Highlights
Solar energy is a promising resource to fulfil the future demand of human on energy owing to its diverse utilization, cleanliness, environmentally friendliness and freely abundancy
PV modules, namely mono-Si (SM55), poly-Si (KC200GT) and thin film (ST40), while the obtained results were compared to that of the datasheet information and those reported in literature using different techniques
The calculated results well matched with the datasheet results and outperformed those reported in literature for all types of the PV
Summary
Solar energy is a promising resource to fulfil the future demand of human on energy owing to its diverse utilization, cleanliness, environmentally friendliness and freely abundancy. Modeling of the current-voltage (I-V) characteristics of solar modules is essential for the performance assessment, simulation, design, and quality control [4,5,6,7] This can only be achieved if the parameters of these devices are accurately determined. The parameters of solar cells and modules are ideality factor (n), series resistance (Rs), shunt resistance (Rsh), photocurrent (Iph) and saturation current (Io) Because these parameters are highly sensitive to the irradiance, light energy, cells temperature and aging [15,16,17,5,18,19,20], researchers usually face a big challenge in modelling the I-V characteristics of solar modules in different environmental conditions.
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