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Adaptive sun tracking algorithm for incident energy maximization and efficiency improvement of PV panels

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  • Ranganathan, Raghuram
  • Mikhael, Wasfy
  • Kutkut, Nasser
  • Batarseh, Issa

Abstract

In recent times, sun tracking systems are being increasingly employed to enhance the efficiency of photovoltaic panels by constantly tracking the elevation and azimuth angles of the sun. In this paper, a novel adaptive digital signal processing and control algorithm is presented that optimizes the overall PV system output power by adjusting the position angles of the solar panel on both the elevation and azimuth axes. Since the proposed approach is adaptive in nature, the optimal position angles for the solar panel are iteratively computed using the adaptive gradient ascent method, until the incident solar radiation, and hence the output power is maximized. Furthermore, a Taylor’s series approximation is employed for generating a unique optimal position angle increment/decrement at each iteration. Simulation results show that the proposed technique demonstrates fast convergence and excellent tracking accuracy at all times of the day.

Suggested Citation

  • Ranganathan, Raghuram & Mikhael, Wasfy & Kutkut, Nasser & Batarseh, Issa, 2011. "Adaptive sun tracking algorithm for incident energy maximization and efficiency improvement of PV panels," Renewable Energy, Elsevier, vol. 36(10), pages 2623-2626.
    • Handle: RePEc:eee:renene:v:36:y:2011:i:10:p:2623-2626
    DOI: 10.1016/j.renene.2010.06.011
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    References listed on IDEAS

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    Cited by:

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    2. AL-Rousan, Nadia & Isa, Nor Ashidi Mat & Desa, Mohd Khairunaz Mat, 2018. "Advances in solar photovoltaic tracking systems: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 2548-2569.
    3. Gulin, Marko & Vašak, Mario & Perić, Nedjeljko, 2013. "Dynamical optimal positioning of a photovoltaic panel in all weather conditions," Applied Energy, Elsevier, vol. 108(C), pages 429-438.
    4. Singh, Rajesh & Kumar, Suresh & Gehlot, Anita & Pachauri, Rupendra, 2018. "An imperative role of sun trackers in photovoltaic technology: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 3263-3278.
    5. Kocifaj, Miroslav & Kómar, Ladislav, 2016. "Modeling diffuse irradiance under arbitrary and homogeneous skies: Comparison and validation," Applied Energy, Elsevier, vol. 166(C), pages 117-127.

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