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Innovative Methodologies for Higher Global MPP of Photovoltaic Arrays under PSCs: Experimental Validation

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  • Belqasem Aljafari

    (Department of Electrical Engineering, College of Engineering, Najran University, Najran 11001, Saudi Arabia)

  • Rupendra Kumar Pachauri

    (Electrical and Electronics Engineering Department, School of Engineering, University of Petroleum and Energy Studies, Dehradun 248007, India)

  • Sudhakar Babu Thanikanti

    (Department of Electrical and Electronics Engineering, Chaitanya Bharathi Institute of Technology, Hyderabad 500075, India)

  • Bamidele Victor Ayodele

    (Department of Chemical Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia)

Abstract

Partial shading conditions (PSCs) are responsible for the root causes of photovoltaic (PV) system performance deprivation such as hotspots (damaged PV cells), mismatch power losses and multiple power maxima. Recently, PV array reconfiguration strategies have proven to be beneficial in improving PV system performance and achieving improved shade dispersion properties. This research analyzes the improved Su-Do-Ku (I-SDK) PV array configuration in order to counteract the shading effect. This approach implements a 6 × 6 size PV array configuration and performance evaluation under different realistic shading scenarios. The performance of the I-SDK configuration is assessed and compared to that of the total-cross-tied (TCT) and Su-Do-Ku (SDK) arrangements. The performance indices such as power loss (PL), power at global maximum power point (GMPP), fill-factor (FF), performance ratio (PR), power enhancement (PE) and execution ratio (ER) are analyzed to show comprehensive comparison. An experimental analysis confirms the MATLAB/Simulink findings, demonstrating that the I-SDK configuration outperforms both the TCT and SDK array setups. The GMPP values of 143.5 W, 141.7 W, 138.1 W and 129.3 W also show the superiority of I-SDK during four shading instances compared to conventional SP, TCT, SDK and SM arrangements. Moreover, under similar PSCs, higher %FF (74.61%, 76.10%, 77.1%, 75.92%) and lower PL (36.7 W, 38.5 W, 42.1 W, 50.9 W) support the adoptability of I-SDK for experimental validation/commercial viability.

Suggested Citation

  • Belqasem Aljafari & Rupendra Kumar Pachauri & Sudhakar Babu Thanikanti & Bamidele Victor Ayodele, 2023. "Innovative Methodologies for Higher Global MPP of Photovoltaic Arrays under PSCs: Experimental Validation," Sustainability, MDPI, vol. 15(15), pages 1-28, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:15:p:11852-:d:1208583
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    References listed on IDEAS

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