Autors: Cherneva G., Filipova-Petrakieva, S. K.
Title: Photovoltaic Panel Performance Analysis under Shading Conditions
Keywords: autonomous photovoltaic systems, Matlab/Simulink model, photovoltaic panel in shading conditions

Abstract: The main factor determining the efficiency of the photovoltaic (PV) panel is the solar radiation that is emitted on its surface. It generates electricity through the PV effect and affects the panel temperature, its output current, voltage and power. Very often in the working mode the PV panels, or parts of them are shaded by clouds or nearby objects. Various impurities and deposit materials appear on them. When a cell, or group of cells, is shaded, its resistance increases and its output current decreases. The energy, generated by the other cells, is dissipated by the shaded cell. This causes overheating and further defects. Thus, shading and impurities modify the character of the I-V curve of the PV panels and reduce their output power. The laboratory equipment of an autonomous PV system, developed in the Department of Electrical Engineering and Physics at "Todor Kableshkov" University of Transport, works in shading conditions. It is realized by PV panel of Longi Solar company, model LR4-72HРH-440M. A simulation and experimental research of the PV panel characteristics under shading conditions is proposed in this paper. The results obtained can be used for teaching in courses related to the application of renewable energy sources.

References

  1. S. Krauter, Solar electric power generation-photovoltaic energy systems, Springer, New York 74, 2006.
  2. D. Nikolova, D. Stoilov, "Factors Influencing the Public Sentiment on Nuclear Energy Investment in European Union Member States", IEEE 18th Conference on Electrical Machines, Drives and Power Systems ELMA’2023, Varna, Bulgaria, 29.06–01.07.2023, Part Number: CFP23L07-ART, ISBN: 979-8-3503-1127-3, DOI: 10.1109/ELMA58392.2023.10202457
  3. Z. Zarkov, V. Milenov, “Study of PV System for Electricity Production for Self-Consumption”, IEEE 14thInternational Conference BulEF’2022, ISBN: 978-166549026-9, DOI: 10.1109/BulEF56479.2022.10021163
  4. N. Makedonski, P. Parushev, “Experimental Study of an Autonomous Power Supply System with a Special Type of Electric Drive”, IEEE XV International Conference BulEF’2023, 16-19.09.2023, Varna, Bulgaria, ISBN: 979-8-3503-2653-6/23, IEEE Catalog Number: CFP23BUL-ART, 2023, Conference ID in IEEE Xplore: 59783X, DOI: 10.1109/BulEF59783.2023.10406266
  5. I. Altaparmakov, D. Stoilov, “A Model for Scheduling and Storage Capacity Estimation for an Autonomous Domestic PV Prosumer”, Proceedings of the 50th International Conference “Applications of Mathematics in Engineering and Economics”, 07-13.06.2024, Sozopol, Bulgaria, (in press)
  6. M. Botev, I. Altaparmakov, V. Atanasov, and D. Stoilov, “Mathematical model for balancing of active electric distribution networks”, IEEE XV International Conference BulEF’2023, 16-19.09.2023, Varna, Bulgaria, ISBN: 979-8-3503-2653-6/23, IEEE Catalog Number: CFP23BUL-ART, 2023, Conference ID in IEEE Xplore: 59783X, DOI: 10.1109/BulEF59783.2023.10406269
  7. N. Makedonski, "Experimental study of power losses due to inrush currents of the electrical drives", IEEE 11th Scientific Conference BulEF’2019, 11-14.09.2019, Varna, Bulgaria, ISBN: 978-1-7281-2697-5, Part Number: CFP19BUL-ART, 2019, Conference ID in IEEE Xplore: 48056xp, Varna, Bulgaria, 2019, DOI: 10.1109/BulEF48056.2019.9030728
  8. A. Chervenkov, A. Yanev, and T. Chervenkova, “Performance analysis and modelling of gridconnected small photovoltaic system”, IEEE 16th International Conference on Electrical Machines, Drives and Power Systems – ELMA, 6 – 8 June 2019, ISBN: 978-172811413-2, DOI: 10.1109/ELMA.2019.8771501
  9. A. Pachamanov, B. Boychev, D. Pavlov, K. Georgiev, K. Kassev, “Photovoltaic roof systems for educational buildings”, 2nd Balkan Junior Conference on Lighting, Balkan Light Junior, 2019, ISBN: 978-172812098-0, DOI: 10.1109/BLJ.2019.8883606
  10. P. Ivanov, G. Cherneva, “Photovoltaic panels Modeling”, Journal “Mechanics, Transport, Communications”, ISSN: 1312-3823, vol. 3, 2022, p. Х-7-Х-13 https://mtc-aj.com/library/2267.pdf
  11. G. Cherneva, S. Filipova-Petrakieva, “Modeling and analysis of an autonomous photovoltaic system for laboratory research”, IEEE 14thInternational Conference BulEF’2022, ISBN: 978-166549026-9, IEEE Catalog Number CFP22BUL-ART, 2022, Conference ID in IEEE Xplore: 56479X, DOI: 10.1109/BulEF56479.2022.10021202, https://www.scopus.com/record/display.uri?eid=2-s2.085147850789&origin=resultslist&sort=plf-f
  12. G. Cherneva, H. Spiridonova, “Determination of the Parameters of the Operating Point of a Photovoltaic module at Different Intensity of Sunlight”, Proceedings of 7thinternational Conference TechCo’2023, ISSN: 2535-079X, p. 71-74. https://www.tugab.bg/images/tk-lovech/Techco-Lovech-23-web.pdf
  13. G. Cherneva, H. Spiridonova, and M. Tomcheva, “Modeling of Operation of a Photovoltaic Module in Shading Conditions”, Journal “Mechanics, Transport, Communications”, ISSN: 1312-3823, vol. 3, 2023, p. ХІ-8 - ХІ-12 https://mtc-aj.com/library/2441.pdf

Issue

2024 16th Electrical Engineering Faculty Conference, BulEF 2024, 2024, , https://doi.org/10.1109/BULEF63204.2024.10794827

Copyright IEEE Xplore Digital Library

Цитирания (Citation/s):
1. Milenov V., Bachev I., Zarkov Z., Performance of Foldable Photovoltaic Panels in Real Conditions, 2025, 2025 19th International Conference on Electrical Machines Drives and Power Systems Elma 2025 Proceedings, issue 0, DOI 10.1109/ELMA65795.2025.11083426 - 2025 - в издания, индексирани в Scopus
2. Petkova P., Boychev B., Optimization of Energy Costs in a Manufacturing Facility Through the Implementation of a Photovoltaic System for Self-Consumption and Surplus Energy Sales, 2025, 2025 17th Electrical Engineering Faculty Conference Energetics and Efficiency Bulef 2025, issue 0, DOI 10.1109/BulEF66320.2025.11298942 - 2026 - в издания, индексирани в Scopus
3. Atanasov T., Milenov V., Solar Energy Production Systems: A Comprehensive Overview of Technological Variant, 2025, 2025 17th Electrical Engineering Faculty Conference Energetics and Efficiency Bulef 2025, issue 0, DOI 10.1109/BulEF66320.2025.11299016 - 2026 - в издания, индексирани в Scopus
4. Petkova P., Boychev B., Methodology for Optimal Sizing of a Photovoltaic System for Industrial Self-Consumption Based on Real Load Profiles, 2026, 2026 11th Conference on Lighting Lighting 2026 Proceedings, issue 0, DOI 10.1109/Lighting69141.2026.11598010 - 2026 - в издания, индексирани в Scopus
5. Boychev B., Petkova P., Impact of Energy Storage Systems on Energy Efficiency and Self-Consumption in Photovoltaic Systems, 2026, 2026 11th Conference on Lighting Lighting 2026 Proceedings, issue 0, DOI 10.1109/Lighting69141.2026.11598460 - 2026 - в издания, индексирани в Scopus
6. Boychev B., Petkova P., Contemporary Methods for Sizing and Optimization of Photovoltaic Systems for Self-Consumption, 2026, 2026 11th Conference on Lighting Lighting 2026 Proceedings, issue 0, DOI 10.1109/Lighting69141.2026.11598555 - 2026 - в издания, индексирани в Scopus

Вид: публикация в международен форум, публикация в реферирано издание, индексирана в Scopus