Improved photovoltaic conversion chain with interleaved method

Author

Cabal, C. ; Cid-Pastor, A. ; Seguier, L. ; Estibals, B. ; Alonso, C.

Author_Institution

LAAS-CNRS, Univ. of Toulouse, Toulouse

fYear

2008

fDate

15-19 June 2008

Firstpage

70

Lastpage

75

Abstract

This paper presents a parallel connection of three-cell interleaved boost converters used as an adaptation stage dedicated to photovoltaic applications. Indeed, this structure associated to a MPPT control improves the efficiency and reliability of a photovoltaic power conversion chain. An additional current sharing control has been incorporated to assure a uniform distribution of power between each DC-DC converter. Every voltage and current ripples present on the load and photovoltaic (PV) source implying the switch stresses are reduced with this technique compared to a classical structure. Finally; experimental results show that the proposed technique can be used for impedance matching of a PV array.

Keywords

DC-DC power convertors; electric current control; impedance matching; photovoltaic cells; DC-DC converter; MPPT control; PV array; current sharing control; impedance matching; maximum power point tracking; photovoltaic power conversion; three-cell interleaved boost converter; DC-DC power converters; Field programmable gate arrays; Photovoltaic systems; Power conversion; Power system reliability; Solar power generation; Stress; Switches; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4591899

Filename

4591899