A multilevel inverter approach providing DC-link balancing, ride-through enhancement, and common-mode voltage elimination
von Jouanne, A.
Dai, S.
Zhang, H.
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Aug 2002
Volume: 49,
Issue: 4
On page(s): 739- 745
ISSN: 0278-0046
INSPEC Accession Number: 7356027
Digital Object Identifier: 10.1109/TIE.2002.801233
Current Version Published: 2002-11-07
Abstract
This paper presents a simple control method for balancing the DC-link voltage of three-level neutral-point-clamped inverters, while providing enhanced ride-through and common-mode voltage (CMV) elimination. The method uses DC-DC power converter technology on the DC link for balancing and ride-through enhancement, and a modified pulsewidth-modulation switching algorithm for CMV elimination. Simulation and experimental results are supplied to confirm the validity of the proposed method, which includes full digital signal processor control.
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