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1

Extracting electrical parameters of solar cells using Lambert function

Bouzidi Mohammed, Ben Rahmoune Mohamed, Nasri Abdelfatah, Mansouri Smail, Hamouda Messaoud

Diagnostyka

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2024

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Vol. 25, No. 2

art. no. 2024214

EN

Photovoltaic cells are intricate systems that transform solar energy into electrical power. Certain internal parameters, such as diode saturation current, conversion resistance, and series resistance, significantly influence the performance of electrical components. Frequently, manufacturers do not provide these parameters. At the moment, researchers need new and clear ways to measure these factors so they can get a better idea of how solar cells work and improve efficiency through simulations. We present a novel approach to accurately determining the five parameters (series resistance, shunt resistance, photovoltaic cell current, and diode saturation current) for multi-crystalline silicon solar cell models. This approach employs the Lambert function and the curve of parasitic resistance. By utilizing the extracted internal electrical parameters, this method will enhance the efficiency of solar cells through the facilitation of more accurate simulations.

2

Dynamic stability analysis with real data of hybrid RES integration in southwest Algeria power system using Etap software

Zemitte Seddik, Hamouda Messaoud, Arama Fatima Zohra

Przegląd Elektrotechniczny

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2023

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R. 99, nr 6

237--242

EN

The power system is non-linear due to the constant change in loads, generators and operating conditions. In recent years, a substantial quantity of renewable energy sources (RES), has been integrated into the world power grid, which has provided alternatives to fossil fuels, especially since they are economical and environmentally friendly to the environment. But at the level of power system stability many concerns have been raised about its efficiency and its impact on its stability and reliability, so it is essential to investigate this impact. The simulation results demonstrated that the stability of the system is affected by this integration, particularly when conventional production plants predominate in the system.

PL

System elektroenergetyczny jest nieliniowy ze względu na ciągłe zmiany obciążeń, generatorów i warunków pracy. W ostatnich latach znaczna ilość odnawialnych źródeł energii (OZE) została włączona do światowej sieci elektroenergetycznej, co stanowi alternatywę dla paliw kopalnych, zwłaszcza że są one ekonomiczne i przyjazne dla środowiska. Jednak na poziomie stabilności systemu elektroenergetycznego zgłoszono wiele obaw dotyczących jego wydajności i wpływu na jego stabilność i niezawodność, dlatego konieczne jest zbadanie tego wpływu. Wyniki symulacji wykazały, że integracja ta ma wpływ na stabilność systemu, zwłaszcza gdy w systemie dominują konwencjonalne zakłady produkcyjne.

3

Design and modeling of a planar micro-coil for micro solar converter application

Laidi Abdallah, Hamouda Messaoud, Hartani Mohamed Amine

Przegląd Elektrotechniczny

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2021

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R. 97, nr 2

112--117

EN

This paper presents a method of dimensioning a DC-DC micro-converter connected to a photovoltaic generator. We are interested in designing and dimensioning a circular planar micro-coil integrated into a Boost micro-converter in this work. The integration of the active and passive power components and the miniaturization of these structures allow a maximum reduction of the space requirement while guaranteeing an acceptable efficiency and improvement of the energy conversion systems' characteristics. The chosen compact model's electrical and frequency behavior, containing all the integrated inductance technological parameters, is described by analytical expressions whose resolution is made using simulation software.

PL

Przedstawiono metodę projektowania mikrocewki przekształtnika DC-DC podłączonego do ogniwa fotowoltaicznego. Projektowano cewkę okrągłą scaloną z przekształtnikiem typu Boost. Celem była maksymalna miniaturyzacja ale nie kosztem parametrów układu.