Dual Flying Capacitor Active-Neutral-Point-Clamped Multilevel Converter

Roozbeh Naderi, Arash Khoshkbar Sadigh, Keyue Ma Smedley

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


Hybrid multilevel converters combine features of conventional multilevel topologies to provide an acceptable tradeoff between the advantages and disadvantages of these converters. For many industrial applications, common dc link is a requirement that limits the choice of topologies to neutral point clamped (NPC) and flying capacitor multicell (FCM) hybrid types. This paper investigates the operation of a hybrid five-level topology and proposes a modulation method that takes the advantage of the combined features of NPC and FCM. The dual flying capacitor (FC) active-neutral-point-clamped (DFC-ANPC) converter provides certain advantages such as natural soft switching of line frequency switches, elimination of the transient voltage balancing snubbers, and a more even loss distribution. Simulation results and experimental verification of the five-level DFC-ANPC converter are presented to validate the performance of the converter as well as the applied modulation technique.

Original languageEnglish (US)
Article number7331305
Pages (from-to)6476-6484
Number of pages9
JournalIEEE Transactions on Power Electronics
Issue number9
StatePublished - Sep 2016

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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