Title :
Study and optimization of two dc-dc power structures used in a grid-connected photovoltaic system
Author :
de Souza, K.C.A. ; Goncalves, O.H. ; Martins, D.C.
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Santa Catarina, Florianopolis
Abstract :
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
Keywords :
DC-DC power convertors; PWM power convertors; photovoltaic power systems; switching convertors; zero voltage switching; DC-DC half-bridge zero voltage switching pulse width modulation; dc-dc power structures; full bridge zero voltage switching phase shift PWM converter; galvanic isolation; grid-connected photovoltaic system; Bridge circuits; DC-DC power converters; Galvanizing; Phase modulation; Photovoltaic systems; Pulse width modulation; Pulse width modulation converters; Robust control; Switching converters; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 2006. PESC '06. 37th IEEE
Conference_Location :
Jeju
Print_ISBN :
0-7803-9716-9
DOI :
10.1109/PESC.2006.1712265
