Multilevel Inverter Topologies for Stand-Alone PV Systems
Daher, S.; Schmid, J.; Antunes, F.L.M.
Industrial Electronics, IEEE Transactions on
Volume 55, Issue 7, July 2008 Page(s):2703 - 2712
Digital Object Identifier   10.1109/TIE.2008.922601
Summary: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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