Title :
High voltage gain boost converter battery charger applied to PV systems
Author :
Barreto, Luiz H S C ; Praça, Paulo P. ; Henn, Gustavo A L ; Câmara, Raphael A. ; Ranoyca, N.A.L.S. ; Oliveira, Demercil S.
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. do Ceara, Fortaleza, Brazil
Abstract :
This paper presents a soft-switching (ZVS) boost converter integrated in such a way to obtain, in a single conversion stage, the maximum energy extraction from photovoltaic panels, battery charging and discharging dynamic control, and high voltage step-up to the inverter DC bus, also operating with soft-switching capability. In order to verify its effectiveness, experimental results from this converter are presented. Theoretical analysis, operation principle and topology details are also presented and studied. High voltage gain, low switching stress, small switching losses, and high efficiency are expected from this topology.
Keywords :
battery chargers; invertors; photovoltaic power systems; switching convertors; zero voltage switching; battery charger; battery charging dynamic control; discharging dynamic control; energy extraction; high voltage gain boost converter; inverter DC bus; photovoltaic panels; photovoltaic systems; soft-switching; switching losses; switching stress; zero voltage switching; Batteries; Capacitors; Converters; Photovoltaic systems; Stress; Switches; Topology;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2011 Twenty-Sixth Annual IEEE
Conference_Location :
Fort Worth, TX
Print_ISBN :
978-1-4244-8084-5
DOI :
10.1109/APEC.2011.5744796
