TY - GEN
T1 - A nine-level grid-connected photovoltaic inverter based on cascaded full-bridge with flying capacitor
AU - Buticchi, Giampaolo
AU - Concari, Carlo
AU - Franceschini, Giovanni
AU - Lorenzani, Emilio
AU - Zanchetta, Pericle
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2012
Y1 - 2012
N2 - This paper proposes a nine-level PWM grid-connected photovoltaic inverter for single-phase applications. The basic structure relies on two cascaded full-bridges supplied with different voltage levels. A flying capacitor provides the power supply for the lower voltage full-bridge. In order to increase the efficiency and keep the ground leakage current under control, a specific PWM strategy was developed and an additional leakage current reduction circuit was added to the basic structure of the cascaded full-bridge. Moreover, the regulation of the flying capacitor voltage is taken into account. Simulations and experimental results confirm the good performance of the proposed solution.
AB - This paper proposes a nine-level PWM grid-connected photovoltaic inverter for single-phase applications. The basic structure relies on two cascaded full-bridges supplied with different voltage levels. A flying capacitor provides the power supply for the lower voltage full-bridge. In order to increase the efficiency and keep the ground leakage current under control, a specific PWM strategy was developed and an additional leakage current reduction circuit was added to the basic structure of the cascaded full-bridge. Moreover, the regulation of the flying capacitor voltage is taken into account. Simulations and experimental results confirm the good performance of the proposed solution.
UR - http://www.scopus.com/inward/record.url?scp=84870874140&partnerID=8YFLogxK
U2 - 10.1109/ECCE.2012.6342688
DO - 10.1109/ECCE.2012.6342688
M3 - Conference contribution
AN - SCOPUS:84870874140
SN - 9781467308014
T3 - 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
SP - 1149
EP - 1156
BT - 2012 IEEE Energy Conversion Congress and Exposition, ECCE 2012
T2 - 4th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2012
Y2 - 15 September 2012 through 20 September 2012
ER -