Title :
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
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;
Conference_Titel :
Power Electronics Specialist Conference, 2003. PESC '03. 2003 IEEE 34th Annual
Print_ISBN :
0-7803-7754-0
DOI :
10.1109/PESC.2003.1216617
