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Two-Leg Neutral-Point Diode-Clamped Active Front-End Rectifier
- Source :
- IEEE Journal of Emerging and Selected Topics in Power Electronics; February 2024, Vol. 12 Issue: 1 p405-419, 15p
- Publication Year :
- 2024
-
Abstract
- Active front-end boost rectifiers can replace the uncontrolled diode bridge rectifiers for ac–dc conversion offering high power quality with near unity power factor. The four-switch, B4, topology is gaining interest, either as an inverter or a rectifier, where each switch should withstand the full dc-link voltage. Higher voltage-rated power semiconductor devices not only imply slower response with lower overall efficiency but also higher cost and size. Thus, multilevel inverters become a viable solution. This article investigates a two-leg neutral-point diode-clamped B8 rectifier allowing the series connection of fast, efficient, and low voltage-rating switches. The proposed rectifier has a better performance and efficiency than the B4 rectifier. Only two inductors instead of three are required. Model predictive current control (MPCC) is developed for accurate current tracking. A model of the proposed rectifier is detailed for the implementation of MPCC. The concept is validated by simulation and experimentation.
Details
- Language :
- English
- ISSN :
- 21686777
- Volume :
- 12
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- IEEE Journal of Emerging and Selected Topics in Power Electronics
- Publication Type :
- Periodical
- Accession number :
- ejs65424493
- Full Text :
- https://doi.org/10.1109/JESTPE.2023.3336571