Fuzzy-Logic-Control Approach of a Modified Hill-Climbing Method for Maximum Power Point in Microgrid Standalone Photovoltaic System

Khaled Hani Ahmed, B. N. Alajmi , S. J. Finney , B. W. Williams

Research output: Contribution to journalArticle

394 Citations (Scopus)


A new fuzzy-logic controller for maximum power point tracking of photovoltaic (PV) systems is proposed. PV modeling is discussed. Conventional hill-climbing maximum power-point tracker structures and features are investigated. The new controller improves the hill-climbing search method by fuzzifying the rules of such techniques and eliminates their drawbacks. Fuzzy-logic based hill climbing offers fast and accurate converging to the maximum operating point during steady-state and varying weather conditions compared to conventional hill climbing. Simulation and experimentation results are provided to demonstrate the validity of the proposed fuzzy-logic-based controller.
Original languageEnglish
Pages (from-to)1022-1030
Number of pages9
JournalIEEE transactions on power electronics
Issue number4
Publication statusPublished - Apr 2011


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