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Isolated Single-Phase Matrix Converter Using Center-Tapped Transformer for Power Decoupling Capability.
- Source :
-
IEEE Transactions on Industry Applications . Mar/Apr2018, Vol. 54 Issue 2, p1523-1531. 9p. - Publication Year :
- 2018
-
Abstract
- This paper proposes a bidirectional isolated single-phase matrix converter with a center-tapped transformer, which is used in a battery storage system connecting to a single-phase ac load. The proposed converter consists of a full-bridge inverter, a high-frequency center-tapped transformer, and a matrix converter. The matrix converter is employed with a pulse density modulation in order to achieve zero-voltage switching (ZVS). On the other hand, a common-mode voltage of the center-tapped transformer and a small capacitor are utilized in order to absorb the power ripple of the single-phase ac load without additional switches. Furthermore, the switches in the full-bridge inverter partially achieve ZVS in order to reduce the switching loss. These characteristics result in a high-power-density converter. As the experimental results with a 1 kW-prototype, the proposed converter reduces the dc current ripple generated by a single-phase ac load by 80.2% in the discharging mode and 76.8% in the charge mode. Besides, the low ac-side voltage total harmonic distortion in the discharge are below 3.0% over the entire ac power range. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00939994
- Volume :
- 54
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Industry Applications
- Publication Type :
- Academic Journal
- Accession number :
- 128554872
- Full Text :
- https://doi.org/10.1109/TIA.2017.2774760