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A Multi-modular system based on parallel-connected multilevel flying capacitor converters controlled with fundamental frequency SPWM

Feng, C., Liang, J., Agelidis, V.G. and Green, T.C. (2006) A Multi-modular system based on parallel-connected multilevel flying capacitor converters controlled with fundamental frequency SPWM. In: Industrial Electronics Conference (IECON) 2006, 6 - 10 November 2006, Paris, France.

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    Link to Published Version: http://dx.doi.org/10.1109/IECON.2006.347459
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    Abstract

    The operation performance of a multi-modular system based on parallel-connected multilevel flying capacitor (FC) converters controlled with the fundamental frequency sinusoidal pulse-width modulation (FF-SPWM) method is analyzed in this paper. A controller is designed to mitigate the circulating current among converter modules when a phase-shifting SPWM method is utilised in order to reduce the output voltage harmonics. The proposed system exhibits lower power losses when compared with the higher frequency SPWM-controlled single-module multilevel FC converter or higher frequency SPWM-controlled two-level conventional converter. Simulations with two five-level FC converter modules are carried out to verify the proposed multi-modular system and its performance under the proposed modified control scheme. The results confirm the attractiveness of the proposed system.

    Publication Type: Conference Paper
    Murdoch Affiliation: School of Engineering Science
    Notes: Appears In: IECON Proceedings
    URI: http://researchrepository.murdoch.edu.au/id/eprint/12047
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