Zero-voltage and Zero-current Switching (ZVZCS) Full-Bridge Three-Level DC/DC Converter

Dong Liu, Yanbo Wang, Zhe Chen

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Abstrakt

This paper proposes a new zero-voltage and zero-current switching (ZVZCS) full-bridge (FB) three-level DC/DC converter (TLDC) with the corresponding modulation strategy for the high-input-voltage and high-power applications. The merits of the proposed converter with the corresponding modulation strategy are concluded as follows. In comparison with the conventional zero-voltage switching (ZVS) FB TLDC, 1) only one blocking capacitor is added to realize ZVZCS; 2) the primary circulating current and duty cycle loss can be effectively reduced. In addition, the wide input voltage range can be satisfied because the proposed corresponding modulation strategy is composed of two working patterns. More significantly, the conduction losses of the primary power devices can be greatly reduced due to removing the primary blocking diode in comparison with other ZVZCS FB TLDCs. Finally, the simulation and experimental results are presented to verify the proposed converter with the corresponding modulation strategy.
OriginalsprogEngelsk
TitelProceedings of 2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
Antal sider6
ForlagIEEE Press
Publikationsdatojun. 2020
Sider1353-1358
Artikelnummer9124442
ISBN (Elektronisk)9781728148298
DOI
StatusUdgivet - jun. 2020
Begivenhed2020 IEEE Applied Power Electronics Conference and Exposition (APEC) - New Orleans, LA, USA
Varighed: 15 mar. 202019 mar. 2020

Konference

Konference2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
LandUSA
ByNew Orleans, LA
Periode15/03/202019/03/2020
NavnIEEE Applied Power Electronics Conference and Exposition (APEC)
ISSN1048-2334

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