articleIEEE Transactions on Power ElectronicsNov 10, 2010Closed access

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

BNBader N. AlajmiKHKhaled H. AhmedSFS.J. FinneyBWB.W. Williams

University of Strathclyde · Alexandria University

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Abstract

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.

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Topics & keywords

Topics
Keywords
  • Photovoltaic system
  • Hill climbing
  • Maximum power principle
  • Maximum power point tracking
  • Control theory (sociology)
  • Fuzzy logic
  • Controller (irrigation)
  • Computer science
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