Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.11/1011
Título: Maximum power point tracker applied in batteries charging with PV panels
Autor: Vieira, J.A.B.
Mota, Alexandre Manuel
Palavras-chave: Photo voltaic panel
MPPT
Battery charging
SEPIC
Renewable energy
Data: 1-Jul-2008
Editora: IEEE
Citação: VIEIRA, Jose António Barros; MOTA, Alexandre Manuel (2008) - Maximum power point tracker applied in batteries charging with PV panels. In IEEE International Symposium on Industrial Electronics, Oxford, 1 Julho. [S.l.]: IEEE. p. 201-207
Resumo: This work deals with the design and a prototype implementation of a real time maximum power point tracker (MPPT) for photovoltaic (PV) panel aiming to improve energy conversion efficiency. This MPPT algorithm is integrated in the charging process of lead-acid batteries making an autonomous system that can be used to feed any autonomous application. The photovoltaic system exhibits a non-linear i-v characteristic and its maximum power point varies with solar insolation and temperature. To control the maximum transfer power from a PV panel the Perturbation and Observation (P&O) MPPT algorithm is executed by a simple microcontroller ATMEL ATTINY861V using the PV voltage and current information and controlling the duty cycle of a pulse width modulation (PWM) signal applied in to a DC/DC converter. The schematic and design of the single-ended primary inductance converter (SEPIC) is presented. This DC/DC converter is chosen because the input voltage can be higher or lower than the output voltage witch presents obvious design advantages. With the P&O MPPT algorithm implemented and executed by the microcontroller, the different charging stages of a lead-acid battery are showed and executed. Finally, experimental results of the performance of the designed P&O MPPT algorithm are presented and compared with the results achieved with the direct connection of the PV panel to the battery.
Descrição: “Copyright © [2008] IEEE. Reprinted from IEEE International Symposium on Industrial Electronics, 2008. ISBN:978-1-4244-1665-3 -8. This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.”
Peer review: yes
URI: http://hdl.handle.net/10400.11/1011
Aparece nas colecções:ESTCB - Comunicações em encontros científicos e técnicos

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
ISIE2008JVIEIRA.pdf402,58 kBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.