Solar Photovoltaic Array Reconfiguration for Reducing Partial Shading Effect

  • Nibras AJ. Khaleel
  • Anas L. Mahmood


In the photovoltaic (PV) system some problems happen causes a substantial reduction in power generation, one of these problems are Partial shading (PS), and (PS) happen when some obstacles block the sun's rays on the photovoltaic (PV) cells in a PV array, panel, or module in the PV system. Therefore, this paper suggests a method for reducing the effects of partial shading and increasing output power by reconfiguring a solar photovoltaic array using a new shade dispersion strategy (NSDS). The improvements achieved in maximum power point MPP when the shadows are angled or have a significant size, NSDS is also suitable for any photovoltaic array size. The simulation in this study was done by using MATLAB-software Simulink. Different shapes for shades were taken like Short and Wide (SW), Short and Narrow (SN), Long and Wide (LW), and Long and Narrow (LN) partial shading in addition to diagonal shade (DI). The suggested method was used on 6x3 photovoltaic panels to solve the partial shadow problem that cannot be solved by some previous shadow dispersion methods like so du Ku and stepwise. Also, it is applied to a 4x2 PV array which is considered difficult to spread the shadows to all PV panels because of its small size. Analysis and comparisons of the output characteristic were done using Cadmium telluride (CdTe) F-4112-3 PV panels and it was found that the increment in the generated power is more than 30% in comparison with the typical series-parallel (SP) for the SW and LW shades while it is more than 30% and 20% in comparison with the Total-Cross-Tied (TCT) configuration for the SW and LW shades respectively.

Keywords: PV modules Reconfiguration, stand- alone, partial shading patterns, Shading Effect, MPP


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[1] M. Syahir, B. Ishak, R. H. Salimin, I. Musirin, and Z. A. Hamid, “Development of PV array configuration under different partial shading condition,” International Journal of Power Electronics and Drive System (IJPEDS) ISSN: vol. 10, no. 3, pp. 1263–1269, 2019, doi: 10.11591/ijpeds.v10.i3.pp1263-1269.
[2] A. L. Mahmood, A. M. Shakir, and B. A. Numan, “Design and performance analysis of stand-alone PV system at al-nahrain university, Baghdad, Iraq,” Int. J. Power Electron. Drive Syst., vol. 11, no. 2, pp. 921–930, 2020, doi: 10.11591/ijpeds.v11.i2.pp921-930.
[3] A. Alkholidi and H. Hamam, “Solar Energy Potentials in Southeastern European Countries : A Case Study,” Int. J. SMART GRID, vol. 3, no. 2, 2019.
[4] A. M. Ajmal, T. Sudhakar Babu, V. K. Ramachandaramurthy, D. Yousri, and J. B. Ekanayake, “Static and dynamic reconfiguration approaches for mitigation of partial shading influence in photovoltaic arrays,” Sustain. Energy Technol. Assessments, vol. 40, no.22. April, p. 100738, 2020, doi: 10.1016/j.seta.2020.100738.
[5] V. P. Madhanmohan, M. Nandakumar, and A. Saleem, “Enhanced performance of partially shaded photovoltaic arrays using diagonally dispersed total cross tied configuration,” Energy Sources, Part A Recover. Util. Environ. Eff., vol. 42, no. 1, pp. 1–19, 2020, doi: 10.1080/15567036.2020.1826008.
[6] H. Rezk, A. Fathy, and M. Aly, “A robust photovoltaic array reconfiguration strategy based on coyote optimization algorithm for enhancing the extracted power under partial shadow condition,” Energy Reports, vol. 7,no.5 pp. 109–124, 2021, doi:10.1016/j.egyr.2020.11.035.
[7] R. K. Pachauri, B. Khan, J. Bai, I. Kansal, and O. P. Mahela, “Shade dispersion methodologies for performance improvement of classical total cross-tied photovoltaic array configuration under partial shading conditions,” no. February, pp. 1796–1811, 2021, doi: 10.1049/rpg2.12147.
[8] M. K. Mishra and V. N. Lal, “An improved methodology for reactive power management in grid integrated solar PV system with maximum power point condition,” Sol. Energy, vol. 199, no.8, September 2019, pp. 230–245, 2020, doi: 10.1016/j.solener.2020.02.001.
[9] V. Fthenakis, C. Athias, A. Blumenthal, A. Kulur, J. Magliozzo, and D. Ng, “Sustainability evaluation of CdTe PV: An update,” Renew. Sustain. Energy Rev., vol. 123, no. December 2019, p. 109776, 2020, doi: 10.1016/j.rser.2020.109776.

[10] A. Rai, “Modeling Of Photovoltaic Cell and Study Partial Shading Effect Using Matlab / Simulink,” ınternatıonal journal of ınnovatıve technology and creatıve engıneerıng (ıssn:2045-8711) vol.6 no.9 september 2016, ımpact factor:0.61 no. May, 2017.
[11] D. Yousri, T. S. Babu, E. Beshr, M. B. Eteiba, and D. Allam, “A Robust Strategy based on Marine Predators Algorithm for large scale Photovoltaic array reconfiguration to Mitigate the Partial Shading Effect on the Performance of PV System,” IEEE Access ,vol.8,no.25,2020,doi:10.1109/ACCESS.2020.3000420.
[12] A. I. Nusaif and A. L. Mahmood, “MPPT Algorithms ( PSO , FA , and MFA ) for PV System Under Partial Shading Condition , Case Study : BTS in Algazalia , Baghdad,” international journal of smart grid, vol.4, no.3, September, 2020.
[13] S. R. Pendem and S. Mikkili, “Modelling and performance assessment of PV array topologies under partial shading conditions to mitigate the mismatching power losses,” Sol. Energy, vol. 160, no.39. November 2017, pp. 303–321, 2018, doi: 10.1016/j.solener.2017.12.010.
[14] D. Prince Winston, S. Kumaravel, B. Praveen Kumar, and S. Devakirubakaran, “Performance improvement of solar PV array topologies during various partial shading conditions,” Sol. Energy, vol. 196, no.45, July 2019, pp. 228–242, 2020, doi: 10.1016/j.solener.2019.12.007.
[15] S. Sharma et al., “Performance Enhancement of PV System Configurations Under Partial Shading Conditions Using MS Method,” IEEE Access, vol. 9,no.2,2021, doi: 10.1109/ACCESS.2021.3071340.
[16] V. P. Madhanmohan and M. Nandakumar, “Effects of Partial Shading in Different PV module Configurations with Minimum Interconnections,” 2018 Int. Conf. Power, Instrumentation, Control Comput., no.5, pp. 1–6, 2018.
[17] V. B. Raju and C. Chengaiah, “A Novel T-C-T Solar Photovoltaic Array Configurations using Rearrangement of PV Modules with Shade Dispersion Technique for Enhancing the Array Power,” International Journal of Recent Technology and Engineering (IJRTE) ISSN: 2277-3878, Vol-8 no. 5, pp. 68–78, 2020, Issue-5S, February 2020,doi: 10.35940/ijrte.E1018.0285S20.
[18] G. Noida, “Experimental Analysis of SPI TCT PV Array Configurations under Partial Shading Conditions 1 2 3 , ,” IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES), no. 2, pp. 0–5, 2016.
[19] P. Livreri, M. Caruso, V. Castiglia, F. Pellitteri, and G. Schettino, “Dynamic Reconfiguration of Electrical Connections for Partially Shaded PV Modules : Technical and Economical Performances of an Arduino-Based Prototype,” vol. 8, no. 1, 2018.
[20] G. Sagar, D. Pathak, P. Gaur, and V. Jain, “A Su Do Ku puzzle based shade dispersion for maximum power enhancement of partially shaded hybrid bridge-link-total-cross-tied PV array,” Sol. Energy,vol. 204, no.March,pp.161–180, 2020, doi: 10.1016/j.solener.2020.04.054.
[21] B. Si, A. Nadia, Z. Nora, B. Nadia, and M. Ahmed, “New Sudoku PV Array Configuration for Out Put Power Losses Minimization,” International Journal Natural and Engineering Sciences (IJNES), vol. 13, no. 2, pp. 59–62, 2019.
[22] C. L. Chaw, “An Approach To Reduce the Effect of Partial Shading on,” University of British Columbia, August, 2012, [Online].Available:
[23] H. S. Sahu, “Power Enhancement of Partially Shaded PV Array by Using a Novel Approach for Shade Dispersion,” IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia) ,pp. 498–503, 2014. DOI: 10.1109/ISGT-Asia.2014.6873842
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Khaleel, N. A., & Mahmood, A. L. (2021). Solar Photovoltaic Array Reconfiguration for Reducing Partial Shading Effect. Asian Journal For Convergence In Technology (AJCT) ISSN -2350-1146, 7(2), 114-120. Retrieved from