RT Journal Article
T1 Three-level converter topologies with switch breakdown fault-tolerance capability
A1 Ceballos, Salvador
A1 Pou, Joseph
A1 Robles, Eider
A1 Gabiola, Igor
A1 Zaragoza, Jordi
A1 Villate, José L.
A1 Boroyevich, Dushan
AB This paper presents some modified topologies of the neutral-point-clamped converter. In all of them, the main change consists of adding a fourth leg, which is based on the flying-capacitor converter structure. The aim of this additional leg is to provide the converter with fault tolerance. Furthermore, during normal operation mode, this leg is able to provide a stiff neutral voltage. Consequently, the low-frequency voltage oscillations that appear at the neutral point of the standard three-level topology in some operating 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 designed to either achieve optimal output voltage spectra or improve the efficiency of the converter. Simulation and experimental results are presented to show the viability of this approach both under normal operation mode and in the event of faults.
SN 0278-0046
YR 2008
FD 2008-03
LA eng
NO Ceballos , S , Pou , J , Robles , E , Gabiola , I , Zaragoza , J , Villate , J L & Boroyevich , D 2008 , ' Three-level converter topologies with switch breakdown fault-tolerance capability ' , IEEE Transactions on Industrial Electronics , vol. 55 , no. 3 , pp. 982-995 . https://doi.org/10.1109/TIE.2008.917072
NO Manuscript received March 5, 2007; revised September 24, 2007. This work was supported in part by the Ministerio de Industria and the Ministerio de Ciencia y Tecnología of Spain under Project CONFIA(G48870406/06), Project ENE2004-07881-C03-03, and Project ENE2004-07881-C03-02; by the Basque Country Government under the SAIOTEK Program; the Torres Quevedo Program; and by the Department d’Universitats Recerca i Societat de la Informació of the Generalitat de Catalunya under Grant 2004BE00105 and Grant 2005BE00481.
DS TECNALIA Publications
RD 28 jul 2024