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A novel backtracking approach for two-axis solar PV tracking plants

Author

Listed:
  • Fernández-Ahumada, L.M.
  • Ramírez-Faz, J.
  • López-Luque, R.
  • Varo-Martínez, M.
  • Moreno-García, I.M.
  • Casares de la Torre, F.

Abstract

Solar tracking is a technique required to increase energy production in multiple photovoltaic (PV) facilities. In these plants, during low-elevation solar angle hours, shadows appear between the collectors causing a dramatic decrease in production. This paper presents a novel optimal tracking strategy to prevent the creation of these shadows. The presented method determines whether or not there is shading between collectors. Thus, when the collectors are not shaded, a tracking trajectory for maximum irradiance on the collectors is suggested. However, when the collectors are shaded, backtracking is proposed. Therefore, energy production in plants with this novel tracking method can be 1.31% higher than that in PV installations with astronomical tracking. Moreover, this method allows the study of PV facilities for which there have been no published approaches, such as plants with non-rectangular collectors or those located on topographically heterogeneous surfaces.

Suggested Citation

  • Fernández-Ahumada, L.M. & Ramírez-Faz, J. & López-Luque, R. & Varo-Martínez, M. & Moreno-García, I.M. & Casares de la Torre, F., 2020. "A novel backtracking approach for two-axis solar PV tracking plants," Renewable Energy, Elsevier, vol. 145(C), pages 1214-1221.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:1214-1221
    DOI: 10.1016/j.renene.2019.06.062
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    Citations

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    Cited by:

    1. Varo-Martínez, M. & Fernández-Ahumada, L.M. & Ramírez-Faz, J.C. & Ruiz-Jiménez, R. & López-Luque, R., 2024. "Methodology for the estimation of cultivable space in photovoltaic installations with dual-axis trackers for their reconversion to agrivoltaic plants," Applied Energy, Elsevier, vol. 361(C).
    2. Sun, Leihou & Bai, Jianbo & Pachauri, Rupendra Kumar & Wang, Shitao, 2024. "A horizontal single-axis tracking bracket with an adjustable tilt angle and its adaptive real-time tracking system for bifacial PV modules," Renewable Energy, Elsevier, vol. 221(C).
    3. Jamroen, Chaowanan & Fongkerd, Chanon & Krongpha, Wipa & Komkum, Preecha & Pirayawaraporn, Alongkorn & Chindakham, Nachaya, 2021. "A novel UV sensor-based dual-axis solar tracking system: Implementation and performance analysis," Applied Energy, Elsevier, vol. 299(C).
    4. Das, Mehmet & Akpinar, Ebru Kavak, 2021. "Investigation of the effects of solar tracking system on performance of the solar air dryer," Renewable Energy, Elsevier, vol. 167(C), pages 907-916.

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