| dc.description.abstract | Photovoltaic (PV) generators are represented by varoius types of electrical equivalent circuits.
Each of which describes the output current-voltage relationship under particular operating con
ditions. Ideal model, single and double diode models are examples to representation of photo
voltaic cell/module. In order to assess the performance of PV generators, one needs to extract
essential parameters of PV module. This dissertation introduces a numerical approach for
estimating four crucial physical parameters within a single-diode circuit model based on the
manufacturer’s datasheet. The methodology involves establishing a system of four non-linear
equations derived from three pivotal points in PV characteristics. Through suggested iterative
approach, the photocurrent, saturation current, ideality factor, and series resistance are deter
mined utilizing the proposed method. Validation of the suggested technique is conducted using
RTCFrance solar cell, Chloride CHL285P, and Photowatt PWP210 modules. The obtained re
sults are compared with in-field outdoor measurements, demonstrating a commendable agree
ment with the experimental data. Furthermore, the selected model is subjected to simulation
in the MATLAB environment to evaluate its response to external physical weather conditions,
specifically temperature and solar irradiance. Notably, the proposed method exhibits a faster
convergence compared to the widely utilized Newton method, emphasizing its efficiency. The
significance of modeling PV cells/modules is underscored as it plays a crucial role in predicting
the performance of photovoltaic generators under varying operating conditions. This numer
ical method contributes to the field by offering a quicker convergence compared to existing
techniques, thereby enhancing its practical utility. | en_US |
