TY - GEN
T1 - Efficient modulation technique for a four-leg fault-tolerant neutral-point-clamped inverter
AU - Ceballos, Salvador
AU - Pou, Josep
AU - Zaragoza, Jordi
AU - Martin, Jose Luis
AU - Robles, Eider
AU - Gabiola, Igor
PY - 2006
Y1 - 2006
N2 - This paper presents a new low-loss modulation technique for the hybrid three-level four-leg converter. The total losses of the converter are reduced on about 18% in average compared to the standard three-leg neutral-point-clamped converter. Furthermore, the low-frequency voltage oscillation in the neutral-point is completely cancelled, and maximum benefit of the dc-link voltage is obtained. All these facts, together with the fault-tolerant ability due to the fourth leg, make this topology very interesting for applications such as wind generation, in which it is important to maximize efficiency and reliability. Some experimental results confirm good performance of the proposed modulation technique.
AB - This paper presents a new low-loss modulation technique for the hybrid three-level four-leg converter. The total losses of the converter are reduced on about 18% in average compared to the standard three-leg neutral-point-clamped converter. Furthermore, the low-frequency voltage oscillation in the neutral-point is completely cancelled, and maximum benefit of the dc-link voltage is obtained. All these facts, together with the fault-tolerant ability due to the fourth leg, make this topology very interesting for applications such as wind generation, in which it is important to maximize efficiency and reliability. Some experimental results confirm good performance of the proposed modulation technique.
KW - Low losses
KW - Multilevel converter
KW - Neutral-point-clamped (NPC) converter
KW - Reliability
KW - Voltage oscillation
UR - http://www.scopus.com/inward/record.url?scp=50249084642&partnerID=8YFLogxK
U2 - 10.1109/IECON.2006.348023
DO - 10.1109/IECON.2006.348023
M3 - Conference contribution
AN - SCOPUS:50249084642
SN - 1424401364
SN - 9781424401369
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 2090
EP - 2095
BT - IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics
T2 - IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics
Y2 - 6 November 2006 through 10 November 2006
ER -