Title

Hybrid seven-level cascaded active neutral-point-clamped-based multilevel converter under SHE-PWM

RIS ID

79931

Publication Details

Pulikanti, S. R., Konstantinou, G. S. & Agelidis, V. G. (2013). Hybrid seven-level cascaded active neutral-point-clamped-based multilevel converter under SHE-PWM. IEEE Transactions on Industrial Electronics, 60 (11), 4794-4804.

Abstract

This paper presents the hybrid seven-level cascaded active neutral-point-clamped (ANPC)-based multilevel converter. The converter topology is the cascaded connection of a three-level ANPC converter and an H-bridge per phase. The voltage of the H-bridge is actively maintained to the required level through selection of the switching states of the converter. The topology is operated under selective harmonic elimination pulsewidth modulation (SHE-PWM), maintaining the switching frequency of the converter to a minimum. The operating principles, voltage balancing methods, and limitations of the converter are analyzed together with extensive simulation results of the topology. Experimental results from a low-power laboratory prototype are presented that verify the operation of the hybrid converter under SHE-PWM.

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Link to publisher version (DOI)

http://dx.doi.org/10.1109/TIE.2012.2218551