Design of Neutral-Point Voltage Controller of a Three-Level NPC Inverter With Small DC-Link Capacitors

Abstract

A neutral-point-clamped three-level inverter with small dc-link capacitors is presented in this paper. The inverter requires zero average neutral-point current for stable neutral-point voltage. The small dc-link capacitors may not maintain capacitor voltage balance, even with zero neutral-point current. This may happen due to nonlinearities present in the… (More)
DOI: 10.1109/TIE.2012.2202352

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@article{Maheshwari2013DesignON, title={Design of Neutral-Point Voltage Controller of a Three-Level NPC Inverter With Small DC-Link Capacitors}, author={RamKrishan Maheshwari and Stig Munk-Nielsen and Sergio Busquets-Monge}, journal={IEEE Transactions on Industrial Electronics}, year={2013}, volume={60}, pages={1861-1871} }