Stand-alone Photovoltaic System using an UPS Inverter and a Microcontrolled Battery Charger based on a Boost Converter with a 3 State-Commutation Cell

Author

Araujo, Samuel V. ; Torrico-Bascope, Rene P. ; Antunes, Fernando L M ; Sa, Edilson Mineiro

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Ceara, Fortaleza

fYear

2006

fDate

6-10 Nov. 2006

Firstpage

4381

Lastpage

4386

Abstract

This paper presents a stand-alone photovoltaic energy system aimed for small power consumer applications in isolated areas of the countryside of Brazil. In order to develop a cost-effective and simple product, a double power conversion UPS (uninterruptible power supply) was analyzed and modified. A whole new battery charger was implemented using a PIC microcontroller equipped with a MPP seeking algorithm, to maximize the energy extracted from the solar panels, and a supervisory unit to control the charge process of the batteries, in order to ensure that they are fully charged

Keywords

battery chargers; commutation; invertors; microcontrollers; photovoltaic power systems; power convertors; uninterruptible power supplies; MPP seeking algorithm; PIC microcontroller; UPS inverter; boost converter; energy extraction; microcontrolled battery charger; power consumer applications; solar panels; stand-alone photovoltaic energy system; state-commutation cell; uninterruptible power supply; Batteries; DC-DC power converters; Inverters; MOSFETs; Photovoltaic systems; Power conversion; Solar power generation; Topology; Uninterruptible power systems; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

IEEE Industrial Electronics, IECON 2006 - 32nd Annual Conference on

Conference_Location

Paris

ISSN

1553-572X

Print_ISBN

1-4244-0390-1

Type

conf

DOI

10.1109/IECON.2006.347946

Filename

4153583