Comparison between flying capacitor and modular multilevel inverter

Adam, G.P. and Anaya-Lara, O. and Burt, G.M. and Finney, S.J. and Williams, B.W. and McDonald, J.R. (2009) Comparison between flying capacitor and modular multilevel inverter. In: IECON 2009, the 35th Annual Conference of the IEEE Industrial Electronics Society and ICELIE 2009, the 3rd IEEE International Conference on E-Learning in Industrial Electronics, 2009-09-03 - 2009-09-05. (Unpublished)

[thumbnail of Comparison_between_FLC_and_MMC_IECON2009_1_.pdf]
Preview
PDF. Filename: Comparison_between_FLC_and_MMC_IECON2009_1_.pdf
Preprint

Download (644kB)| Preview

Abstract

The paper describes the operational principle of flying capacitor and modular multilevel inverters. The detailed discussions of dc link capacitors voltage balancing methods for both inverters are given in order to enable fair comparison. The causes of dc link capacitors voltage imbalance in flying capacitor multilevel inverter with more than three levels are highlighted. Computer simulation is used to compare the performance of both inverters under several operating conditions.