Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants

The growing need for generation of electric power because of increasing energy consumption requires the need of renewable energy sources. Solar photovoltaic (PV) systems are suitable solution to this issue, however its efficiency might decrease under partial shade conditions. In this work, we propos...

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Main Authors: Sakthivel Ganesan, Prince Winston David, Hariharasudhan Thangaraj, Devakirubakaran Samithas, Praveen Kumar Balachandran, Muhammad Ammirrul Atiqi Mohd Zainuri
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
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Online Access:https://ieeexplore.ieee.org/document/10870113/
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author Sakthivel Ganesan
Prince Winston David
Hariharasudhan Thangaraj
Devakirubakaran Samithas
Praveen Kumar Balachandran
Muhammad Ammirrul Atiqi Mohd Zainuri
author_facet Sakthivel Ganesan
Prince Winston David
Hariharasudhan Thangaraj
Devakirubakaran Samithas
Praveen Kumar Balachandran
Muhammad Ammirrul Atiqi Mohd Zainuri
author_sort Sakthivel Ganesan
collection DOAJ
description The growing need for generation of electric power because of increasing energy consumption requires the need of renewable energy sources. Solar photovoltaic (PV) systems are suitable solution to this issue, however its efficiency might decrease under partial shade conditions. In this work, we propose a new array configuration for a <inline-formula> <tex-math notation="LaTeX">$4\times 4$ </tex-math></inline-formula> solar PV array under different partial shading environments. We validate the proposed method by testing 18 different shading patterns that our configuration greatly increases power output, lowers mismatch losses, and improves the fill factor relative to traditional techniques. Comparatively to the conventional Total cross-Tied (TCT) method&#x2019;s 68 W and fill factor of 0.29, proposed method achieves a power output of 76 W, a reduction in mismatch losses to 15%, and a fill factor of 0.32 under diagonal and long partial shading. The proposed produces a maximum power output of 88 W for inverse diagonal conditions, effectively lowering power losses by 20%. With up to a 12% increase in power output and a 15% decrease in mismatch losses under several shading conditions, the proposed configuration consistently outperforms conventional techniques. This proposed method offers an effective solution for improving power generation under abnormal conditions and shows significant improvement in PV array optimization.
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spelling doaj-art-f9b171de21aa491fba9644ddabbb58c72025-02-11T00:00:46ZengIEEEIEEE Access2169-35362025-01-0113237952381510.1109/ACCESS.2025.353812910870113Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational VariantsSakthivel Ganesan0https://orcid.org/0000-0002-5184-8541Prince Winston David1https://orcid.org/0000-0003-4701-8024Hariharasudhan Thangaraj2https://orcid.org/0009-0002-5117-5292Devakirubakaran Samithas3https://orcid.org/0000-0001-7622-5490Praveen Kumar Balachandran4https://orcid.org/0000-0003-1561-1376Muhammad Ammirrul Atiqi Mohd Zainuri5https://orcid.org/0000-0001-9134-4869Department of Electrical and Electronics Engineering, Kamaraj College of Engineering and Technology, Virudhunagar, Tamil Nadu, IndiaDepartment of Electrical and Electronics Engineering, Kamaraj College of Engineering and Technology, Virudhunagar, Tamil Nadu, IndiaDepartment of Electrical and Electronics Engineering, M. Kumarasamy College of Engineering, Karur, Tamil Nadu, IndiaCenter for Smart Energy Systems, Chennai Institute of Technology, Chennai, Tamil Nadu, IndiaDepartment of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Bangi, Selangor, MalaysiaDepartment of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Bangi, Selangor, MalaysiaThe growing need for generation of electric power because of increasing energy consumption requires the need of renewable energy sources. Solar photovoltaic (PV) systems are suitable solution to this issue, however its efficiency might decrease under partial shade conditions. In this work, we propose a new array configuration for a <inline-formula> <tex-math notation="LaTeX">$4\times 4$ </tex-math></inline-formula> solar PV array under different partial shading environments. We validate the proposed method by testing 18 different shading patterns that our configuration greatly increases power output, lowers mismatch losses, and improves the fill factor relative to traditional techniques. Comparatively to the conventional Total cross-Tied (TCT) method&#x2019;s 68 W and fill factor of 0.29, proposed method achieves a power output of 76 W, a reduction in mismatch losses to 15%, and a fill factor of 0.32 under diagonal and long partial shading. The proposed produces a maximum power output of 88 W for inverse diagonal conditions, effectively lowering power losses by 20%. With up to a 12% increase in power output and a 15% decrease in mismatch losses under several shading conditions, the proposed configuration consistently outperforms conventional techniques. This proposed method offers an effective solution for improving power generation under abnormal conditions and shows significant improvement in PV array optimization.https://ieeexplore.ieee.org/document/10870113/Array configurationoptimizationpartial shadingreconfigurationsolar PVtotal cross tied
spellingShingle Sakthivel Ganesan
Prince Winston David
Hariharasudhan Thangaraj
Devakirubakaran Samithas
Praveen Kumar Balachandran
Muhammad Ammirrul Atiqi Mohd Zainuri
Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants
IEEE Access
Array configuration
optimization
partial shading
reconfiguration
solar PV
total cross tied
title Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants
title_full Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants
title_fullStr Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants
title_full_unstemmed Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants
title_short Optimizing Photovoltaic Array Performance Under Partial Shading Using a Golden Ratio-Based Configuration: A Comparative Analysis of 16 Configurational Variants
title_sort optimizing photovoltaic array performance under partial shading using a golden ratio based configuration a comparative analysis of 16 configurational variants
topic Array configuration
optimization
partial shading
reconfiguration
solar PV
total cross tied
url https://ieeexplore.ieee.org/document/10870113/
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