Capacitor balance issues of the diode-clamped multilevel inverter operated in a quasi two-state mode

Adam, Grain Philip and Finney, S.J. and Massoud, A. and Williams, B.W. (2008) Capacitor balance issues of the diode-clamped multilevel inverter operated in a quasi two-state mode. IEEE Transactions on Industrial Electronics, 55 (8). pp. 3088-3099. ISSN 0278-0046 (https://doi.org/10.1109/TIE.2008.922607)

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Abstract

A new operational mode for diode-clamped multilevel inverters termed quasi two-level operation is proposed. Such operation aims to avoid the imbalance problem of the dc-link capacitors for multilevel inverters with more than three levels and reduces the dc-link capacitance without introducing any significant voltage ripple at the dc-link nodes. The proposed operation can be generalized for any number of levels. The validity of the proposed multilevel inverter operational mode is confirmed by simulations and experiments on a prototype five-level diode-clamped inverter.

ORCID iDs

Adam, Grain Philip ORCID logoORCID: https://orcid.org/0000-0002-1263-9771, Finney, S.J. ORCID logoORCID: https://orcid.org/0000-0001-5039-3533, Massoud, A. and Williams, B.W.;
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