Multidimensional modulation technique for cascaded multilevel converters

Jose Ignacio Leon, Samir Kouro, Sergio Vazquez, Ramon Portillo, Leopoldo Garcia Franquelo, Juan Manuel Carrasco, Jose Rodriguez

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93 Citations (Scopus)


Multilevel cascaded H-bridge converters have found industrial application in the medium-voltage high-power range. In this paper, a generalized modulation technique for this type of converter based on a multidimensional control region is presented. Using the multidimensional control region, it is shown that all previous modulation techniques are particularized versions of the proposed method. Several possible solutions to develop a specific implementation of the modulation method are addressed in order to show the potential possibilities and the flexibility of the proposed technique. In addition, a feedforward version of this technique is also introduced to determine the switching sequence and the switching times, avoiding low harmonic distortion with unbalanced dc voltages. Experimental results are shown in order to validate the proposed concepts. © 2011 IEEE.
Original languageEnglish
Pages (from-to)412-420
Number of pages9
JournalIEEE Transactions on Industrial Electronics
Publication statusPublished - 1 Feb 2011

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    Leon, J. I., Kouro, S., Vazquez, S., Portillo, R., Franquelo, L. G., Carrasco, J. M., & Rodriguez, J. (2011). Multidimensional modulation technique for cascaded multilevel converters. IEEE Transactions on Industrial Electronics, 412-420.