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Trends in Electrical Engineering

Modeling of Fuzzy Logic Controller for Photovoltaic Maximum Power Point Tracker

  1. Ali M. Eltamaly

Abstract

In this paper a fuzzy logic controller for maximum power point tracker of photovoltaic (PV) energy system isintroduced. This controller uses a boost converter to control the terminal voltage of PV system to work at themaximum power point. The load side consists of battery and control switches to control the power flow from thePV system to the battery and the load. The system is modeled using Matlab/Simulink program. The output powerfrom the PV system with the use of fuzzy controller is compared with the theoretical maximum power from thesame system and the power output using the best constant output voltage. The fuzzy controller shows stableoperation for different data introduced to the system. It also restrains any overshooting in input or outputsystems and increases the quantum of energy captured considerably.Keywords: Photovoltaic, fuzzy, modeling
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