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A shade dispersion interconnection scheme for partially shaded modules in a solar PV array network

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  • Satpathy, Priya Ranjan
  • Sharma, Renu
  • Jena, Sasmita

Abstract

Solar Photovoltaic (SPV) arrays are networks of many modules interconnected to provide required terminal voltage and current. In field conditions, large PV arrays deliver lower power than array rating. In this paper, sensitivity of modular interconnection schemes in variation of available power from PV array is investigated. The approach involves the development of a computer algorithm that is required to evolve the new connection scheme to maximize power under all shading conditions. Connection schemes corresponding to minimum power loss for several shadows which are synthetized and an innovative connection scheme is evolved. This connection scheme is considered as the optimal connection scheme. The emerged connection scheme is evaluated for a small SPV array of size 3 × 3 and a comparatively large SPV array of size 7 × 7 using a prototype field experiment for various possible shading patterns. The merit of its energy generation compared to earlier interconnection schemes is highlighted. It is found that the proposed connection scheme excels in performance and redundancy over the hitherto known best interconnection schemes. The scheme may be very conveniently applied to subarrays which in turn can be synthesized for larger SPV arrays.

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  • Satpathy, Priya Ranjan & Sharma, Renu & Jena, Sasmita, 2017. "A shade dispersion interconnection scheme for partially shaded modules in a solar PV array network," Energy, Elsevier, vol. 139(C), pages 350-365.
    • Handle: RePEc:eee:energy:v:139:y:2017:i:c:p:350-365
    DOI: 10.1016/j.energy.2017.07.161
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    1. Sai Krishna, G. & Moger, Tukaram, 2019. "Improved SuDoKu reconfiguration technique for total-cross-tied PV array to enhance maximum power under partial shading conditions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 109(C), pages 333-348.
    2. Aljafari, Belqasem & Satpathy, Priya Ranjan & Thanikanti, Sudhakar Babu, 2022. "Partial shading mitigation in PV arrays through dragonfly algorithm based dynamic reconfiguration," Energy, Elsevier, vol. 257(C).
    3. Bouselham, Loubna & Rabhi, Abdelhamid & Hajji, Bekkay & Mellit, Adel, 2021. "Photovoltaic array reconfiguration method based on fuzzy logic and recursive least squares: An experimental validation," Energy, Elsevier, vol. 232(C).
    4. Ranjbaran, Parisa & Yousefi, Hossein & Gharehpetian, G.B. & Astaraei, Fatemeh Razi, 2019. "A review on floating photovoltaic (FPV) power generation units," Renewable and Sustainable Energy Reviews, Elsevier, vol. 110(C), pages 332-347.
    5. Satpathy, Priya Ranjan & Jena, Sasmita & Sharma, Renu, 2018. "Power enhancement from partially shaded modules of solar PV arrays through various interconnections among modules," Energy, Elsevier, vol. 144(C), pages 839-850.
    6. Sangeetha, Thangavel & Li, I-Ting & Lan, Tzu-Hsuan & Wang, Chin-Tsan & Yan, Wei-Mon, 2021. "A fluid dynamics perspective on the flow dependent performance of honey comb microbial fuel cells," Energy, Elsevier, vol. 214(C).
    7. Satpathy, Priya Ranjan & Sharma, Renu & Dash, Sambit, 2019. "An efficient SD-PAR technique for maximum power generation from modules of partially shaded PV arrays," Energy, Elsevier, vol. 175(C), pages 182-194.
    8. 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.
    9. Satpathy, Priya Ranjan & Aljafari, Belqasem & Thanikanti, Sudhakar Babu & Sharma, Renu, 2023. "An efficient power extraction technique for improved performance and reliability of solar PV arrays during partial shading," Energy, Elsevier, vol. 282(C).
    10. Kamran Ali Khan Niazi & Yongheng Yang & Mashood Nasir & Dezso Sera, 2019. "Evaluation of Interconnection Configuration Schemes for PV Modules with Switched-Inductor Converters under Partial Shading Conditions," Energies, MDPI, vol. 12(14), pages 1-12, July.
    11. Krishna, G.Sai & Moger, Tukaram, 2019. "Enhancement of maximum power output through reconfiguration techniques under non-uniform irradiance conditions," Energy, Elsevier, vol. 187(C).
    12. de Jesus dos Santos Rodrigues, Marinaldo & Torres, Pedro Ferreira & Barros Galhardo, Marcos André & Chase, Otavio Andre & Monteiro, Weslley Leão & de Arimatéia Alves Vieira Filho, José & Mares, Fabríc, 2021. "A new methodology for the assessing of power losses in partially shaded SPV arrays," Energy, Elsevier, vol. 232(C).

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