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A Simplified Space-Vector Modulation Algorithm for Four-Leg NPC Converters.
- Source :
-
IEEE Transactions on Power Electronics . Nov2017, Vol. 32 Issue 11, p8371-8380. 10p. - Publication Year :
- 2017
-
Abstract
- To interface generation sources and loads to four-wire distribution networks it is important to use power converters and modulation methods, which provide high performance, flexibility, and reliability. To achieve these goals, this paper proposes a simple and efficient space vector modulation (SVM) algorithm in $\alpha \beta \gamma$ coordinates for neutral point clamped (NPC) converters. The proposed SVM method reduces a 3-D ($\alpha \beta \gamma$) search amongst modulating vectors into a simple 2-D ( $\alpha \beta$) problem. Moreover, the algorithm provides full utilization of the dc-link voltage and full utilization of the redundant vectors, and it can be applied to any other four-leg converter topology. The proposed SVM has been successfully validated using a 6-kW three-level four-leg NPC converter, achieving control over the voltages of the dc-link capacitors and a simple definition of the switching patterns for shaping the frequency spectrum. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 08858993
- Volume :
- 32
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 123805792
- Full Text :
- https://doi.org/10.1109/TPEL.2016.2618061