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Control design and performance analysis of a double-switched LLC resonant rectifier for unity power factor and soft-switching

journal contribution
posted on 2020-03-01, 00:00 authored by Guidong Zhang, Junming Zeng, Samson YuSamson Yu, Wenxun Xiao, Bo Zhang, Si-Zhe Chen, Yun Zhang
This paper presents and analyzes an AC-DC power converter structure, which is comprised of a Power Factor Correction (PFC) module and a LLC resonant DC-DC converter module. This converter only uses two switches, and requires three less diodes and one less switch compared to popular LLC resonant converter solutions. Compared to its conventional counterpart, the rectifier of interest has high energy efficiency while a smaller size, owing to the soft-switching in the LLC resonant converter. Detailed theoretical analyses are conducted in this study, followed by software simulation and hardware experimentation, which demonstrate that the single stage double-switched (DS)-LLC rectifier is able to realize unity power factor and a wide output range, indicating its effectiveness and applicability.

History

Journal

IEEE Access

Volume

8

Pagination

44511 - 44521

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Location

Piscataway, N.J.

eISSN

2169-3536

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal