Assessment of the incremental conductance maximum power point tracking algorithm

Mohammed A. Elgendy, Bashar Zahawi, David J. Atkinson

Research output: Contribution to journalArticlepeer-review

460 Scopus citations


An efficient, cost-effective maximum power point tracking (MPPT) algorithm is required to improve the energy utilization efficiency of low power photovoltaic (PV) systems. This paper presents an experimental evaluation of the incremental conductance MPPT algorithm when employed by a standalone PV pumping system, using an experimental installation comprised of a 1080-Wp photovoltaic array connected to a 1-kW permanent magnet dc motor-centrifugal pump set. Particular focus is given to the evaluation of the two commonly utilized implementation techniques: reference voltage perturbation and direct duty ratio perturbation. The influence of algorithm parameters on system behavior is investigated and the energy utilization efficiency is calculated for different weather conditions. The performance of the incremental conductance algorithm is compared to that of the commonly used perturb and observe MPPT algorithm and the various advantages and drawbacks of each technique are identified.

Original languageBritish English
Article number6248723
Pages (from-to)108-117
Number of pages10
JournalIEEE Transactions on Sustainable Energy
Issue number1
StatePublished - 2013


  • DC-DC power conversion
  • maximum power point tracking (MPPT)
  • photovoltaic power systems
  • photovoltaic pumping


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