RT Conference Proceedings
T1 Fault-tolerant multilevel converter topology
A1 Ceballos, Salvador
A1 Pou, Josep
A1 Gabiola, Igor
A1 Villate, José Luis
A1 Zaragoza, Jordi
A1 Boroyevich, Dushan
AB This paper presents a modified topology of the neutral-point-clamped converter. The main change consists on adding a fourth leg, which is based on the flying-capacitor converter structure. The aim of this additional leg is to provide fault tolerance to the converter. Furthermore, during normal operation mode, this leg is able to provide a stiff neutral voltage. Consequently, the low-frequency voltage oscillations that appear in the neutral point of the standard three-level topology for some operation conditions no longer exist. As a result, the modulation strategy of the three main legs of the converter does not have to take care of voltage balance, and it can be design to achieve optimal output voltage waveforms, as well as to improve efficiency of the converter. Some simulation results are presented to show viability of this approach under both, normal operation mode and fault event. Experimental results are expected to include in the final paper.
SN 1424404975
SN 9781424404971
YR 2006
FD 2006
LK https://hdl.handle.net/11556/1640
UL https://hdl.handle.net/11556/1640
LA eng
NO Ceballos , S , Pou , J , Gabiola , I , Villate , J L , Zaragoza , J & Boroyevich , D 2006 , Fault-tolerant multilevel converter topology . in International Symposium on Industrial Electronics 2006, ISIE 2006 . , 4078321 , IEEE International Symposium on Industrial Electronics , vol. 2 , pp. 1577-1582 , International Symposium on Industrial Electronics 2006, ISIE 2006 , Montreal, QC , Canada , 9/07/06 . https://doi.org/10.1109/ISIE.2006.295707
NO conference
DS TECNALIA Publications
RD 28 jul 2024