A maximum power point tracking technique for partially shaded photovoltaic systems in microgrids

Bader N F M T Alajmi, Khaled Ahmed, Stephen Finney, Barry Williams

Research output: Contribution to journalArticlepeer-review

327 Citations (Scopus)


A modified fuzzy-logic controller for maximum power point tracking is proposed to increase PV system performance during partially shaded conditions. Instead of perturbing and observing the PV system maximum power point, the controller scans and stores the maximum power during the perturbing and observing procedure. The controller offers accurate convergence to the global maximum operating point under different partial shadowing conditions. A Mathematical model of PV system under partial shadowing conditions is derived. To validate the proposed modified fuzzy-logic based controller simulation and experimentation results are provided.
Original languageEnglish
Pages (from-to)1596-1606
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Issue number4
Early online date19 Sep 2011
Publication statusPublished - Apr 2013


  • power point tracking technique
  • photovoltaic systems
  • microgrids
  • maximum power point tracking technique
  • power generation control
  • distributed power generation
  • fuzzy control
  • mathematical analysis
  • maximum power point trackers
  • photovoltaic power systems
  • power distribution control

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