Multilevel Inverter Topologies for Stand-Alone PV Systems
Daher, S.
Schmid, J.
Antunes, F.L.M.
Energy Process. & Control Group, Fed. Univ. of Ceara, Fortaleza;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: July 2008
Volume: 55,
Issue: 7
On page(s): 2703-2712
ISSN: 0278-0046
INSPEC Accession Number: 10074559
Digital Object Identifier: 10.1109/TIE.2008.922601
Current Version Published: 2008-06-24
Abstract
This paper shows that versatile stand-alone photovoltaic (PV) systems still demand on at least one battery inverter with improved characteristics of robustness and efficiency, which can be achieved using multilevel topologies. A compilation of the most common topologies of multilevel converters is presented, and it shows which ones are best suitable to implement inverters for stand-alone applications in the range of a few kilowatts. As an example, a prototype of 3 kVA was implemented, and peak efficiency of 96.0% was achieved.
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