TY - GEN
T1 - A current symmetrical hybrid multilevel DC-AC converter
AU - Jappe, Tiago Kommers
AU - Mussa, Samir Ahmad
AU - Heldwein, Marcelo Lobo
AU - Caballero, Domingo Ruiz
AU - Paredes, Carlos
PY - 2011
Y1 - 2011
N2 - This work presents the analysis of new symmetrical hybrid current source-type multilevel inverter topologies. A three-level current cell (TCC) and its respective modulation pattern are proposed. The purpose of the circuits presented here is to reduce current stresses that affects the power semiconductor devices and improve harmonic distortion of the voltages applied to the load. This is done by distributing currents among the switches in the three-level cell. As a characteristic of the proposed cells, some of the switches operate at low frequency while others are switched at high frequency. To validate the operating principle a single-phase circuit has been simulated, operating at 1.0 kHz for the fast switches and 50 Hz for the slow switches. Also featured in this paper is the extension to three-phase versions of the proposed converter.
AB - This work presents the analysis of new symmetrical hybrid current source-type multilevel inverter topologies. A three-level current cell (TCC) and its respective modulation pattern are proposed. The purpose of the circuits presented here is to reduce current stresses that affects the power semiconductor devices and improve harmonic distortion of the voltages applied to the load. This is done by distributing currents among the switches in the three-level cell. As a characteristic of the proposed cells, some of the switches operate at low frequency while others are switched at high frequency. To validate the operating principle a single-phase circuit has been simulated, operating at 1.0 kHz for the fast switches and 50 Hz for the slow switches. Also featured in this paper is the extension to three-phase versions of the proposed converter.
KW - Current source inverter
KW - High current inverter
KW - High resolution multilevel inverter
KW - Hybrid multilevel
KW - Multilevel converters
UR - http://www.scopus.com/inward/record.url?scp=80053528467&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:80053528467
SN - 9781612841670
T3 - Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011
BT - Proceedings of the 2011 14th European Conference on Power Electronics and Applications, EPE 2011
T2 - 2011 14th European Conference on Power Electronics and Applications, EPE 2011
Y2 - 30 August 2011 through 1 September 2011
ER -