Synthesis and modulation of a single phase DC/AC converter with high-frequency isolation in photovoltaic energy applications

Author

Beristain, J. ; Bordonau, Josep ; Gilabert, A. ; Velasco, G.

Author_Institution

ITSON, Sonora, Mexico

Volume

3

fYear

2003

Firstpage

1191

Abstract

This paper introduces a DC/AC converter with high-frequency isolation and bidirectional power flow capability for photovoltaic energy applications. The topology is based on a high-frequency inverter, a high-frequency transformer and an AC/AC converter. No additional DC-link stages are required, providing a reduction of components. A modulation strategy for the commutation of the AC/AC converter switches is presented with the benefits of soft-switching commutations with no extra components. Simulation and experimental verification are provided.

Keywords

AC-AC power convertors; DC-DC power convertors; commutation; photovoltaic power systems; switching convertors; AC-AC converter switches; DC-link stage; bidirectional power flow; high-frequency inverter; high-frequency isolation; high-frequency transformer; photovoltaic energy applications; simulation; single phase DC-AC converter modulation; single phase DC-AC converter synthesis; softswitching commutation; Analog-digital conversion; Filters; Frequency conversion; Phase modulation; Photovoltaic systems; Pulse width modulation inverters; Solar power generation; Switches; Topology; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual

ISSN

0275-9306

Print_ISBN

0-7803-7754-0

Type

conf

DOI

10.1109/PESC.2003.1216617

Filename

1216617