Off-Grid PV System to Supply a Rural School on DC Network

Authors

This paper presents the development of a photovoltaic (PV)

system to supply electric energy to a typical rural school in the

countryside of the sunny Northern East of Brazil. The system is

designed to supply a rural school for up to two days, even under

minimum solar radiation conditions. The solar energy is

captured by PV panels and stored in lead acid batteries. The

solar battery charger (A boost converter) extracts the maximum

power from the PV panels for any radiation. The load is

supplied through a high gain boost converter (24 Vcc to 311

Vcc) and the entire system is controlled by a microcontroller,

which runs the MPP algorithm, monitors the charge state of the

batteries and controls the operation of the DC/DC boost

converter according to the load demand.

Freitas A. A.

Electric Engineering Department

Universidade Federal do Ceará

Campus do Pici - 60.455-760 Fortaleza/CE (Brazil).

Phone:+5585 336 69586, e-mail: alisson.alencar.freitas@gmail.com
Daher, S

Electric Engineering Department

Universidade Federal do Ceará

Campus do Pici - 60.455-760 Fortaleza/CE (Brazil).

Phone:+5585 336 69586, e-mail: sdaher@dee.ufc.br
Antunes, F

Electric Engineering Department

Universidade Federal do Ceará

Campus do Pici - 60.455-760 Fortaleza/CE (Brazil).

Phone:+5585 336 69586, e-mail: fantunes@dee.ufc.br
Ximenes, S

Electric Engineering Department

Universidade Federal do Ceará

Campus do Pici - 60.455-760 Fortaleza/CE (Brazil).

Phone:+5585 336 69586
Viana, F

Electric Engineering Department

Universidade Federal do Ceará

Campus do Pici - 60.455-760 Fortaleza/CE (Brazil).

Phone:+5585 336 69586, e-mail: fernando.ufc@gmail.com
Sá Jr E

IFCE – Instituto Federal de Educação, Ciência e Tecnologia do Ceará

Phone:+5585 329 26101, e-mail: edilson.mineiro@gmail.com
Silva, F. S

IFPI – Instituto Federal de Educação, Ciência e Tecnologia do Piauí

Phone:+5585 342 27767, e-mail: felintosergio@yahoo.com.br
Soares, E. A.

CEPISA – Companhia Energética do Piauí

Phone:+5586 322 88010, e-mail: emanoel@cepisa.com.br