High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells

Zhengge Chen; Jianping Xu; Yuxin Liu; Chunhua Liu

doi:10.1109/TPEL.2024.3386598

High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells

Zhengge Chen
, Jianping Xu
, Yuxin Liu
, Chunhua Liu^*

^*Corresponding author for this work

School of Energy and Environment

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

17 Citations (Scopus)

108 Downloads (CityUHK Scholars)

Abstract

AC-DC buck-type power factor correction (PFC) converters, with their step-down output voltage capabilities, can serve as promising pre-stage solutions, enabling end users to operate under relatively low voltage conditions. However, most stat-of-the-art buck-type PFC converters do not set outputs to 160V or higher due to the concerns about poor power factor (PF) caused by input current dead zones. This restricted output voltage set limits the buck-type PFC converter applications. Thus, this paper proposes a family of hybrid cell-based buck-type bridgeless topologies, derived by combining buck cell with flyback, boost, and buck-boost cells. This combination narrows the input current dead zones, enabling a higher output voltage and thus broadening the applications. The proposed topology family with 20 derived topologies is reviewed and analyzed for a comprehensive investigation. Then, a specific topology with high PF and relatively high efficiency is studied. The input PF, output ripple, inductor boundary, control method, and power loss analysis are presented. Experimental tests of the studied topology and performance comparisons with the prior-art bridgeless buck and bridgeless buck-boost PFC converters are conducted to verify the topology feasibility and distinguishing performances.

© 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

Original language	English
Pages (from-to)	8024-8039
Journal	IEEE Transactions on Power Electronics
Volume	39
Issue number	7
Online published	10 Apr 2024
DOIs	https://doi.org/10.1109/TPEL.2024.3386598
Publication status	Published - Jul 2024

Funding

This work was supported in part by a Collaborative Research Fund under Grant C1052-21GF from the Research Grants Council, Hong Kong SAR, in part by the RGC Research Fellow Scheme under Grant RFS2223-1S05 from Research Grants Council, Hong Kong SAR, in part by the Grant 2023NSFSC0813 from the Natural Science Foundation of Sichuang Province, and in part by the Hong Kong Scholars Program under Grant XJ2022029

Research Keywords

bridgeless topology
buck-type
hybrid cell
input current dead zones
output ripple
PFC

Publisher's Copyright Statement

COPYRIGHT TERMS OF DEPOSITED POSTPRINT FILE: © 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Chen, Z., Xu, J., Liu, Y., & Liu, C. (2024). High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells. IEEE Transactions on Power Electronics, 39(7), 8024-8039. https://doi.org/10.1109/TPEL.2024.3386598

RGC Funding Information

RGC-funded

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title = "High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells",

abstract = "AC-DC buck-type power factor correction (PFC) converters, with their step-down output voltage capabilities, can serve as promising pre-stage solutions, enabling end users to operate under relatively low voltage conditions. However, most stat-of-the-art buck-type PFC converters do not set outputs to 160V or higher due to the concerns about poor power factor (PF) caused by input current dead zones. This restricted output voltage set limits the buck-type PFC converter applications. Thus, this paper proposes a family of hybrid cell-based buck-type bridgeless topologies, derived by combining buck cell with flyback, boost, and buck-boost cells. This combination narrows the input current dead zones, enabling a higher output voltage and thus broadening the applications. The proposed topology family with 20 derived topologies is reviewed and analyzed for a comprehensive investigation. Then, a specific topology with high PF and relatively high efficiency is studied. The input PF, output ripple, inductor boundary, control method, and power loss analysis are presented. Experimental tests of the studied topology and performance comparisons with the prior-art bridgeless buck and bridgeless buck-boost PFC converters are conducted to verify the topology feasibility and distinguishing performances. {\textcopyright} 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.",

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T1 - High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells

AU - Chen, Zhengge

AU - Xu, Jianping

AU - Liu, Yuxin

AU - Liu, Chunhua

PY - 2024/7

Y1 - 2024/7

N2 - AC-DC buck-type power factor correction (PFC) converters, with their step-down output voltage capabilities, can serve as promising pre-stage solutions, enabling end users to operate under relatively low voltage conditions. However, most stat-of-the-art buck-type PFC converters do not set outputs to 160V or higher due to the concerns about poor power factor (PF) caused by input current dead zones. This restricted output voltage set limits the buck-type PFC converter applications. Thus, this paper proposes a family of hybrid cell-based buck-type bridgeless topologies, derived by combining buck cell with flyback, boost, and buck-boost cells. This combination narrows the input current dead zones, enabling a higher output voltage and thus broadening the applications. The proposed topology family with 20 derived topologies is reviewed and analyzed for a comprehensive investigation. Then, a specific topology with high PF and relatively high efficiency is studied. The input PF, output ripple, inductor boundary, control method, and power loss analysis are presented. Experimental tests of the studied topology and performance comparisons with the prior-art bridgeless buck and bridgeless buck-boost PFC converters are conducted to verify the topology feasibility and distinguishing performances. © 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

AB - AC-DC buck-type power factor correction (PFC) converters, with their step-down output voltage capabilities, can serve as promising pre-stage solutions, enabling end users to operate under relatively low voltage conditions. However, most stat-of-the-art buck-type PFC converters do not set outputs to 160V or higher due to the concerns about poor power factor (PF) caused by input current dead zones. This restricted output voltage set limits the buck-type PFC converter applications. Thus, this paper proposes a family of hybrid cell-based buck-type bridgeless topologies, derived by combining buck cell with flyback, boost, and buck-boost cells. This combination narrows the input current dead zones, enabling a higher output voltage and thus broadening the applications. The proposed topology family with 20 derived topologies is reviewed and analyzed for a comprehensive investigation. Then, a specific topology with high PF and relatively high efficiency is studied. The input PF, output ripple, inductor boundary, control method, and power loss analysis are presented. Experimental tests of the studied topology and performance comparisons with the prior-art bridgeless buck and bridgeless buck-boost PFC converters are conducted to verify the topology feasibility and distinguishing performances. © 2024 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.

KW - bridgeless topology

KW - buck-type

KW - hybrid cell

KW - input current dead zones

KW - output ripple

KW - PFC

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High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells

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High Power Factor Buck-Type Bridgeless Topology Family With Hybrid Converter Cells

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Funding

Research Keywords

Publisher's Copyright Statement

RGC Funding Information

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Projects

RFS: Development of Advanced Electric Machines and Smart Power Drives for Electric Propulsion

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