Study and optimization of two dc-dc power structures used in a grid-connected photovoltaic system

This paper presents a study and optimization of two step-up DC-DC power converters operating with high efficiency to be used in the first stage of grid-connected photovoltaic systems. The first studied power structures was the DC-DC Half-Bridge Zero Voltage Switching Pulse Width Modulation (DC-DC HB...

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Bibliographic Details
Published in2006 37th IEEE Power Electronics Specialists Conference pp. 1 - 5
Main Authors de Souza, Kleber C. A., Gongalves, Odiglei Hess, Martins, Denizar Cruz
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2006
Subjects
Bridge circuits
Capacitors
Inductors
Inverters
Photovoltaic systems
Pulse width modulation
Zero voltage switching
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Summary:This paper presents a study and optimization of two step-up DC-DC power converters operating with high efficiency to be used in the first stage of grid-connected photovoltaic systems. The first studied power structures was the DC-DC Half-Bridge Zero Voltage Switching Pulse Width Modulation (DC-DC HB ZVS-PWM) asymmetrically driven converter and the second was the Full Bridge Zero Voltage Switching Phase Shift (DC-DC FB ZVS-PWM) converter. The efforts in the study of the structures used in the first stage were focused in characteristics like high efficiency, galvanic isolation, robustness and facility to control.
ISBN:0780397169
9780780397163
ISSN:0275-9306
2377-6617
DOI:10.1109/pesc.2006.1712265