Improvement of the Performance of the Cascaded Multilevel Inverters Using Power Cells with Two Series Legs


Vol. 13, No. 2, pp. 223-231, Mar. 2013
10.6113/JPE.2013.13.2.223


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 Abstract

A modular three-phase multilevel inverter especially suitable for electrical drive applications has been previously presented. This topology is based on series connection of power cells in which each cell comprised of two inverter legs in series. In this paper, in order to generate the maximum number of voltage levels with reduced number of switches, three algorithms are proposed for determination of the magnitudes of dc voltage sources. In addition, a new hybrid multilevel inverter is proposed that is composed of series connection of the previously presented multilevel inverter and some H-bridges. The proposed topology has been compared with some other presented multilevel inverters. The performance of the proposed multilevel inverter has been verified by simulation and experimental results of a single-phase 39-level multilevel inverter.


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Cite this article

[IEEE Style]

E. Babaei, A. Dehqan, M. Sabahi, "Improvement of the Performance of the Cascaded Multilevel Inverters Using Power Cells with Two Series Legs," Journal of Power Electronics, vol. 13, no. 2, pp. 223-231, 2013. DOI: 10.6113/JPE.2013.13.2.223.

[ACM Style]

Ebrahim Babaei, Ali Dehqan, and Mehran Sabahi. 2013. Improvement of the Performance of the Cascaded Multilevel Inverters Using Power Cells with Two Series Legs. Journal of Power Electronics, 13, 2, (2013), 223-231. DOI: 10.6113/JPE.2013.13.2.223.