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

Author

Listed:
  • Zaheeruddin

    (Jamia Millia Islamia (A Central University))

  • Sukumar Mishra

    (Indian Institute of Technology (I.I.T) - Delhi)

  • Ahteshamul Haque

    (Jamia Millia Islamia (A Central University))

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.

Suggested Citation

  • Zaheeruddin & Sukumar Mishra & Ahteshamul Haque, 2016. "Performance evaluation of modified perturb & observe maximum power point tracker for solar PV system," International Journal of System Assurance Engineering and Management, Springer;The Society for Reliability, Engineering Quality and Operations Management (SREQOM),India, and Division of Operation and Maintenance, Lulea University of Technology, Sweden, vol. 7(1), pages 229-238, December.
    • Handle: RePEc:spr:ijsaem:v:7:y:2016:i:1:d:10.1007_s13198-015-0369-z
    DOI: 10.1007/s13198-015-0369-z
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