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

Author

Alajmi, Bader N. ; Ahmed, Khaled H. ; Finney, Stephen J. ; Williams, Barry W.

Author_Institution

Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK

Volume

26

Issue

4

fYear

2011

fDate

4/1/2011 12:00:00 AM

Firstpage

1022

Lastpage

1030

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.

Keywords

distributed power generation; fuzzy control; maximum power point trackers; photovoltaic power systems; power generation control; fuzzy-logic-controller approach; hill-climbing search method; maximum power point tracking; microgrid standalone photovoltaic system; Arrays; Fuzzy logic; Meteorology; Photovoltaic cells; Photovoltaic systems; Fuzzy-logic controller (FLC); hill climbing; maximum power-point tracker (MPPT); photovoltaic;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/TPEL.2010.2090903

Filename

5621917