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A novel Odd–Even inspired approach for optimal shade dispersion in PV arrays

Author

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  • Baranwal, Kashika
  • Prakash, Prem
  • Yadav, Vinod Kumar

Abstract

Shading remains a persistent issue that critically undermines the operational efficacy of photovoltaic (PV) systems by inducing substantial power loss. Among the numerous countermeasures, PV array reconfigurations have emerged as a reliable solution for mitigating shading effects. This article proposes a generalized static reconfiguration method, inspired by the odd–even approach for improved shade dispersion. This methodology is validated via both simulation and experimental execution on a 5 × 5 PV array, examined for various conventional and random shading patterns. A comprehensive simulation study is also performed on 9 × 9 PV array, to validate the effectiveness of proposed method on large PV arrays under dynamic shading scenario as well, demonstrating its potential for real–world applications. The performance of the proposed method is assessed against Series-Parallel (SP), Total-cross-tied(TCT), Index–based–matrix (IBM), Chaos–Map (CMap), and Tom–Tom (TT), Twisted-two step algorithm (TTSA), Parquet Sudoku (PRS.Sud), and Hyper Sudoku (Hyp.Sud), and Modified Chess Knight Method (Mod.CKM). The results obtained show a substantial reduction of up to 35.27 % in mismatch loss (ML), with significant improvements of nearly 150 % in Fill-factor (FF), Power Enhancement (PE), and Execution Ratio (ER) respectively with respect to TCT, outperforming other compared approaches. Further, this study pioneers the incorporation of a prominent statistical metric, standard deviation (SD), to assess inter-row current uniformity among compared approaches. The findings reveal a significant reduction in SD by up to 100 % compared to TCT configuration.

Suggested Citation

  • Baranwal, Kashika & Prakash, Prem & Yadav, Vinod Kumar, 2025. "A novel Odd–Even inspired approach for optimal shade dispersion in PV arrays," Energy, Elsevier, vol. 339(C).
    • Handle: RePEc:eee:energy:v:339:y:2025:i:c:s0360544225047140
    DOI: 10.1016/j.energy.2025.139072
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    References listed on IDEAS

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    1. Yadav, Vinod Kumar & Behera, Anwesh Devratna & Singh, Ranjeet & Maheshwari, Anubhav & Ghosh, Santosh & Prakash, Abhijeet, 2023. "A novel PV array reconfiguration technique based on circular array data structure," Energy, Elsevier, vol. 283(C).
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