Design, simulation, and hardware implementation of novel optimum operating point tracker of PV system using adaptive step size

  • Abdelhamid Loukriz
  • Sabir MessaltiEmail author
  • Abdelghani Harrag


In this paper, a novel maximum power point tracking (MPPT) strategy of photovoltaic system has been proposed and investigated. The suggested method is based on modified variable step-size perturbation and observation P&O strategy, which it can overcome several drawbacks and limitations of previous developed MPPT methods especially oscillations around the MPP, accuracy, and the convergence speed under rapidly changing atmospheric conditions. To demonstrate the efficiency of the proposed method, both simulation model and experimental prototype have been developed and tested effectively using photovoltaic system based on Solarex MSX-60 panel and forward converter controlled by dsPIC30F2010 controller. Obtained results demonstrate that the proposed adaptive step-length perturbation and observation P&O strategy can offer many benefits compared to conventional P&O MPPT method and other methods developed previously in terms of low ripple, low overshoot, and low response time. The proposed adaptive step-size MPPT improves drastically the performances in static mode (oscillation reduction ratio around 75.00%) as well as in dynamic mode (convergence time reduction ratio around 91.67%) improving by the way the transferred available power.


New modified P&O MPPT algorithm Variable step-size MPPT algorithm Tracking and accuracy of MPP Forward converter Implementation dspic30f2010 


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  • Abdelhamid Loukriz
    • 1
  • Sabir Messalti
    • 1
    Email author
  • Abdelghani Harrag
    • 2
    • 3
  1. 1.ENP Polytechnic SchoolEl-HarrachAlgeria
  2. 2.Electrical Engineering Department, Faculty of TechnologyMsila UniversityMsilaAlgeria
  3. 3.CCNS Laboratory, Electronics Department, Faculty of TechnologyFerhat Abbas UniversitySetifAlgeria

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