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Comprehensive analysis on the role of array size and configuration on energy yield of photovoltaic systems under shaded conditions

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  • Malathy, S.
  • Ramaprabha, R.

Abstract

Partial shading is a condition where, the panels in a photovoltaic (PV) array do not receive uniform irradiation. Shading causes mismatch in the electrical characteristics of the panels composing the PV array and results in significant reduction in the energy yield. The reduction in output is not proportional to the shaded area but depends on the extent of mismatch that in turn depends on other factors like array size, type of configuration chosen, position of the panels in the array and shading pattern. To reduce the severity of this issue and to improve the energy yield under shaded conditions, it is therefore necessary to analyze the role played by each one of the contributing factors in greater detail. This paper presents a detailed analysis focusing mainly on the role played by the array size, array configuration (interconnections among the panels) and the shading pattern on the energy yield under partial shading conditions.

Suggested Citation

  • Malathy, S. & Ramaprabha, R., 2015. "Comprehensive analysis on the role of array size and configuration on energy yield of photovoltaic systems under shaded conditions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 49(C), pages 672-679.
    • Handle: RePEc:eee:rensus:v:49:y:2015:i:c:p:672-679
    DOI: 10.1016/j.rser.2015.04.165
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    References listed on IDEAS

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    1. Silvestre, S. & Boronat, A. & Chouder, A., 2009. "Study of bypass diodes configuration on PV modules," Applied Energy, Elsevier, vol. 86(9), pages 1632-1640, September.
    2. Alonso-García, M.C. & Ruiz, J.M. & Herrmann, W., 2006. "Computer simulation of shading effects in photovoltaic arrays," Renewable Energy, Elsevier, vol. 31(12), pages 1986-1993.
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    Cited by:

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    3. Belhaouas, N. & Cheikh, M.-S. Ait & Agathoklis, P. & Oularbi, M.-R. & Amrouche, B. & Sedraoui, K. & Djilali, N., 2017. "PV array power output maximization under partial shading using new shifted PV array arrangements," Applied Energy, Elsevier, vol. 187(C), pages 326-337.
    4. Malathy, S. & Ramaprabha, R., 2018. "Reconfiguration strategies to extract maximum power from photovoltaic array under partially shaded conditions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 81(P2), pages 2922-2934.
    5. Bana, Sangram & Saini, R.P., 2017. "Experimental investigation on power output of different photovoltaic array configurations under uniform and partial shading scenarios," Energy, Elsevier, vol. 127(C), pages 438-453.
    6. 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.
    7. Manoharan Premkumar & Umashankar Subramaniam & Thanikanti Sudhakar Babu & Rajvikram Madurai Elavarasan & Lucian Mihet-Popa, 2020. "Evaluation of Mathematical Model to Characterize the Performance of Conventional and Hybrid PV Array Topologies under Static and Dynamic Shading Patterns," Energies, MDPI, vol. 13(12), pages 1-37, June.
    8. Peter Udenze & Yihua Hu & Huiqing Wen & Xianming Ye & Kai Ni, 2018. "A Reconfiguration Method for Extracting Maximum Power from Non-Uniform Aging Solar Panels," Energies, MDPI, vol. 11(10), pages 1-15, October.

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