Efficiency Enhancement of Bridgeless Buck-Boost PFC Converter with Unity PF and DC Split to Reduce Voltage Stresses

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Abstrakt

This paper proposes a unity power factor (PF) bridgeless buck-boost power factor correction (PFC) converter to minimize conduction losses caused by the diode bridge. Moreover, compared to the conventional buck-boost PFC converter, the proposed converter has lower voltage stresses across switches, which further improves the overall efficiency of the proposed converter, especially when it operates in the light load conditions. Operation modes with inductors working in the discontinuous conduction mode (DCM) are given in detail, and comparative analysis is conducted to show the proposed converter performance regarding the PF, component stresses, and output ripple. The proposed and conventional converter prototypes with load range of 20∼100 W are built and tested. The obtained results verify merits and theoretical predictions of the proposed.
OriginalsprogEngelsk
TitelProceedings of the IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society
Antal sider6
ForlagIEEE Press
Publikationsdatookt. 2018
Sider1187-1192
ISBN (Trykt)978-1-5090-6685-8
ISBN (Elektronisk)978-1-5090-6684-1
DOI
StatusUdgivet - okt. 2018
Begivenhed44th Annual Conference of the IEEE Industrial Electronics Society - Omni Shoreham Hotel, Washington, USA
Varighed: 21 okt. 201823 okt. 2018
http://www.iecon2018.org/

Konference

Konference44th Annual Conference of the IEEE Industrial Electronics Society
LokationOmni Shoreham Hotel
LandUSA
ByWashington
Periode21/10/201823/10/2018
Internetadresse
NavnProceedings of the Annual Conference of the IEEE Industrial Electronics Society
ISSN1553-572X

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Citationsformater

Chen, Z., Liu, B., Davari, P., & Wang, H. (2018). Efficiency Enhancement of Bridgeless Buck-Boost PFC Converter with Unity PF and DC Split to Reduce Voltage Stresses. I Proceedings of the IECON 2018 - 44th Annual Conference of the IEEE Industrial Electronics Society (s. 1187-1192). IEEE Press. Proceedings of the Annual Conference of the IEEE Industrial Electronics Society https://doi.org/10.1109/IECON.2018.8591725