DocumentCode
601564
Title
Three-phase modular cascaded H-bridge multilevel inverter with individual MPPT for grid-connected photovoltaic systems
Author
Xiao, Bailu ; Hang, Lijun ; Riley, Cameron ; Tolbert, Leon M. ; Ozpineci, Burak
Author_Institution
Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, 37996, USA
fYear
2013
fDate
17-21 March 2013
Firstpage
468
Lastpage
474
Abstract
A three-phase modular cascaded H-bridge multilevel inverter for a grid-connected photovoltaic (PV) system is presented in this paper. To maximize the solar energy extraction of each PV string, an individual maximum power point tracking (MPPT) control scheme is applied, which allows the independent control of each dc-link voltage. PV mismatches may introduce unbalanced power supplied to the three-phase system. To solve this issue, a control scheme with modulation compensation is proposed. The three-phase modular cascaded multilevel inverter prototype has been built. Each H-bridge is connected to a 185 W solar panel. Simulation and experimental results are presented to validate the proposed ideas.
fLanguage
English
Publisher
ieee
Conference_Titel
Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE
Conference_Location
Long Beach, CA, USA
ISSN
1048-2334
Print_ISBN
978-1-4673-4354-1
Electronic_ISBN
1048-2334
Type
conf
DOI
10.1109/APEC.2013.6520251
Filename
6520251
Link To Document