A stand-alone photovoltaic system based on Dc-Dc converters in a multi string configuration

Author

Imhoff, Johninson ; Rodrigues, Guilherme Fração ; Pinheiro, José Renes ; Hey, Héio Leães

Author_Institution

POWER Electron. & CONTROL Res. GROUP, Santa Maria

fYear

2007

fDate

2-5 Sept. 2007

Firstpage

1

Lastpage

10

Abstract

This work introduces an autonomous photovoltaic system, alternative to traditional systems, composed of a configuration with distributed DC-DC energy processing and maximum power point tracking, and presents a comparison of the generated energy by the input stages of a centralized autonomous system and by the proposed system. Experimental results show that the proposed system can present an increase of 16% on the generated energy at the DC bus, in situations in which one or more photovoltaic panels are shaded, damaged or aged.

Keywords

DC-DC power convertors; photovoltaic power systems; DC bus; DC-DC converters; autonomous photovoltaic system; centralized autonomous system; distributed DC-DC energy processing; maximum power point tracking; multistring configuration; Aging; Batteries; Control systems; Costs; DC-DC power converters; Energy storage; Mesh generation; Photovoltaic systems; Power generation; Solar power generation; Decentralized Photovoltaic Systems; Photovoltaic; Renewable energy systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2007 European Conference on

Conference_Location

Aalborg

Print_ISBN

978-92-75815-10-8

Electronic_ISBN

978-92-75815-10-8

Type

conf

DOI

10.1109/EPE.2007.4417715

Filename

4417715