A hybrid full-bridge three-level DC-DC converter with crossing auxiliary capacitors
Autor(en): |
Chonggan Liang
Xinran Guo Hongxing Wang Qi Xu Shi Liu Yi Yang Zhigang Liu |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Journal of Physics: Conference Series, 1 November 2022, n. 1, v. 2360 |
Seite(n): | 012026 |
DOI: | 10.1088/1742-6596/2360/1/012026 |
Abstrakt: |
This paper presents a high-power medium-frequency hybrid full-bridge (FB) three-level (TL) DC-DC converter with crossing auxiliary capacitors. In this converter, two auxiliary capacitors are deployed between phases a and b, replacing the flying capacitor. The converter’s three-level leg switches are with low voltage stress, while the two-level leg switches are with high voltage stress. The topology and modulation method, as well as the switching characteristics of the hybrid FBTL DC-DC converter with crossing auxiliary capacitors are described. The feasibility and performance of the above-mentioned converter is validated by a laboratory prototype. Based on the mechanism analysis and experiments, the zero-voltage switching (ZVS) and zero-switching loss (ZSL) of power switches, self-balance of the clamped capacitors voltages, and the voltage self-balance of the switches in the three-level leg can be achieved. |
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Datenseite - Reference-ID
10777496 - Veröffentlicht am:
12.05.2024 - Geändert am:
12.05.2024