Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Study on Effect of Partial Shading Irradiance Conditions in Photovoltaic Solar Arrays

Ioan-Viorel Banu
,
Fadila Barkat
ORCID logo ,
Marcel Istrate
,
Josep M. Guerrero
,
George Culea
* ,
Petru Livinti
ORCID logo ,
Roxana Grigore
ORCID logo ,
Petru-Gabriel Puiu
,
Dragos-Alexandru Andrioaia
,
Sorin-Gabriel Vernica
,
Ioana Plescau
Version 1 : Received: 17 February 2024 / Approved: 19 February 2024 / Online: 19 February 2024 (10:28:19 CET)

How to cite: Banu, I.; Barkat, F.; Istrate, M.; Guerrero, J.M.; Culea, G.; Livinti, P.; Grigore, R.; Puiu, P.; Andrioaia, D.; Vernica, S.; Plescau, I. Study on Effect of Partial Shading Irradiance Conditions in Photovoltaic Solar Arrays. Preprints 2024, 2024021038. https://doi.org/10.20944/preprints202402.1038.v1 Banu, I.; Barkat, F.; Istrate, M.; Guerrero, J.M.; Culea, G.; Livinti, P.; Grigore, R.; Puiu, P.; Andrioaia, D.; Vernica, S.; Plescau, I. Study on Effect of Partial Shading Irradiance Conditions in Photovoltaic Solar Arrays. Preprints 2024, 2024021038. https://doi.org/10.20944/preprints202402.1038.v1

Abstract

Solar photovoltaic (PV) generation suffers from multiple serious issues, for example shading effects directly affect the performance of installed PV arrays. By studying these issues, it can play a key role in improving the limitations and performance of PV panels. The study of PV arrays under partial shading conditions is mentioned in many papers as a part of other studies and as an independent phenomenon. Therefore, it is essential to improve these studies and update them with new research and study this problem in detail to know how to limit the effects of partial shading irradiance conditions on PV arrays performances, including economical aspects. This paper proposes to study the effects of different partial shading irradiance conditions for a PV array in various configurations. The analysis is proved in detail through the simulation of the proposed PV array in the Matlab/Simulink environment. The obtained results show the performances of interconnected PV arrays under different partial shading irradiance and temperature conditions, including the solar array I-V and P-V characteristics. In addition, different PV array configurations with and without bypass and blocking protection diodes improve and minimize the effect of partial shading conditions and avoid the reductions in output power.

Keywords

photovoltaic (PV) arrays; solar power generation; partial shading; bypass diodes; simulation; modeling

Subject

Engineering, Energy and Fuel Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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