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Performance evaluation of modified perturb & observe maximum power point tracker for solar PV system

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Abstract

Solar photovoltaic (PV) is used to convert the solar energy (a major source of renewable energy) into unregulated electrical energy. Maximum power point tracker (MPPT) is used to extract the maximum power from solar PV. Among various types of MPPT schemes, perturb & observe (P&O) scheme is one of the most popular method. The study aims at to develop a modified P&O MPPT scheme and to evaluate the performance parameters such as convergence time, steady state oscillations, and reliability under change in ambient conditions as well as load variations. In the modified MPPT design, the response time of the power electronics DC–DC converter is considered for deciding the interval between two perturbations. The simulation study is performed using PSIM software and the prototype hardware is developed in the laboratory. The modified MPPT scheme is implemented using buck DC–DC converter. The results show the convergence time of 0.16 s and steady state oscillation of 1 W with step load change response time of 1.8 s. The comparison of findings obtained in the modified P&O MPPT scheme and existing methods showed significant improvements. The modified P&O MPPT scheme may be useful for home applications, in DC microgrids.

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Authors and Affiliations

  1. Department of Electrical Engineering, Faculty of Engineering & Technology, Jamia Millia Islamia (A Central University), New Delhi, 110025, India

    Zaheeruddin & Ahteshamul Haque

  2. Department of Electrical Engineering, Indian Institute of Technology (I.I.T) - Delhi, New Delhi, 110016, India

    Sukumar Mishra

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  1. Zaheeruddin
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  2. Sukumar Mishra
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  3. Ahteshamul Haque
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Correspondence to Ahteshamul Haque.

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Zaheeruddin, Mishra, S. & Haque, A. Performance evaluation of modified perturb & observe maximum power point tracker for solar PV system. Int J Syst Assur Eng Manag 7 (Suppl 1), 229–238 (2016). https://doi.org/10.1007/s13198-015-0369-z

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  • DOI: https://doi.org/10.1007/s13198-015-0369-z

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