Title :
Multilevel Inverter Topologies for Stand-Alone PV Systems
Author :
Daher, Sergio ; Schmid, Jurgen ; Antunes, Fernando L M
Author_Institution :
Energy Process. & Control Group, Fed. Univ. of Ceara, Fortaleza
fDate :
7/1/2008 12:00:00 AM
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.
Keywords :
invertors; photovoltaic power systems; apparent power 3 kVA; efficiency 96 percent; multilevel inverter topologies; stand-alone PV systems; stand-alone photovoltaic systems; Batteries; Circuit topology; Inverters; Photovoltaic systems; Power semiconductor switches; Power system reliability; Renewable energy resources; Robustness; Solar power generation; Voltage; Multilevel inverter; renewable energy (RE); stand-alone photovoltaic (PV) system;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2008.922601
