Theoretical and Practical Study of a Photovoltaic MPPT Algorithm Applied to Voltage Battery Regulation

Year 2014, Volume: 4 Issue: 1, 83 - 90, 01.03.2014

Adel Bouallegue Sihem Amara Adel Kheder

Abstract

The energy produced by the photovoltaic systems is very intermittent and depends enormously on the weather conditions. This is why it is important to find a way to store this energy. This paper proposes a design and implementation of a photovoltaic power generation system controller. So as to extract maximum power from the PV panel, the proposed system controls both the boost converter and the battery charger using a microcontroller. The proposed solution is based on the PIC16F877 microcontroller. Experimental results, based on the MCU are agreed with the Matlab/Simulink simulation.

Keywords

Battery, Microcontroller, MPPT, Perturb and Observe, Photovoltaic, Regulator of charge

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• Electrical characteristics of the photovoltaic module Electrical Characteristics (STC) Abbreviation Value Band-gap energy of the Eg semiconductor Maximum power 2 eV A 5 Pmax 7 W Voltage at Pmax Vmp V Current at Pmax Imp 65 A Open circuit voltage Voc 7 V Short circuit current Isc 9 A 2mA/◦C Number of cells in parallel Np Number of cells in series Ns