Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 70, Issue 1, Pages 29-38Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2022.3148756
Keywords
Inverters; Capacitors; Switches; Voltage; Voltage control; Topology; Low voltage; Multilevel converter; self-voltage balance; switched-capacitor (SC) circuit; voltage boosting
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This article proposes a design of a three-phase five-level switched-capacitor active neutral point clamped converter, which is characterized by its voltage boost ability, low-voltage stress across semiconductor devices, and balance of floating capacitor voltage. The operating principles and modulation scheme of the converter are explained, and a comparative analysis with similar topologies is presented. Simulation and experimental results demonstrate the feasibility of the proposed five-level converter.
This article proposes a three-phase five-level switched-capacitor active neutral point clamped converter, which can be characterized by voltage boost ability, low-voltage stress across semiconductor devices, and balance of floating capacitor voltage without any auxiliary circuits and/or sensors. Operating principles and modulation scheme of the proposed converter, as well as a comparative analysis with similar topologies are included. Simulation and experimental results for a three-phase prototype are given to demonstrate the feasibility of the proposed five-level converter.
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