Design of LLC Resonant Converters Based on Operation-Mode Analysis for Level Two PHEV Battery Chargers

Junjun Deng; Chunting Chris Mi; Ruiqing Ma; Siqi Li

doi:10.1109/TMECH.2014.2349791

Design of LLC Resonant Converters Based on Operation-Mode Analysis for Level Two PHEV Battery Chargers

Junjun Deng
, Chunting Chris Mi
, Ruiqing Ma
, Siqi Li

Northwestern Polytechnical University Xian
University of Michigan, Dearborn
Kunming University of Science and Technology

Research output: Contribution to journal › Article › peer-review

112 Citations (Scopus)

Abstract

In this paper, the efficiency-oriented design considerations are discussed based on the operation-mode analysis of the LLC converter considering the characteristics of charging profiles. The mode boundaries and distribution are obtained from the precise time-domain model. The operation modes featuring both-side soft-switching capability are identified to design the operating trace of the charging process. Then the design constraints for achieving soft switching with the load varying from zero up to the maximum are discussed. Finally, a charging trajectory design methodology is proposed and validated through experiments on a prototype converting 390 V from the dc power source to the battery emulator in the range of 250-450 V at 6.6 kW with a peak efficiency of 97.96%.

Original language	English
Article number	6894600
Pages (from-to)	1595-1606
Number of pages	12
Journal	IEEE/ASME Transactions on Mechatronics
Volume	20
Issue number	4
DOIs	https://doi.org/10.1109/TMECH.2014.2349791
Publication status	Published - 1 Aug 2015
Externally published	Yes

Keywords

Battery
LLC resonant converter
battery charger
dc-dc converter
electric vehicle
plug-in hybrid electric vehicle (PHEV)
resonate converter
zero-current switching (ZCS)
zero-voltage switching (ZVS)

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10.1109/TMECH.2014.2349791

Cite this

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title = "Design of LLC Resonant Converters Based on Operation-Mode Analysis for Level Two PHEV Battery Chargers",

abstract = "In this paper, the efficiency-oriented design considerations are discussed based on the operation-mode analysis of the LLC converter considering the characteristics of charging profiles. The mode boundaries and distribution are obtained from the precise time-domain model. The operation modes featuring both-side soft-switching capability are identified to design the operating trace of the charging process. Then the design constraints for achieving soft switching with the load varying from zero up to the maximum are discussed. Finally, a charging trajectory design methodology is proposed and validated through experiments on a prototype converting 390 V from the dc power source to the battery emulator in the range of 250-450 V at 6.6 kW with a peak efficiency of 97.96\%.",

keywords = "Battery, LLC resonant converter, battery charger, dc-dc converter, electric vehicle, plug-in hybrid electric vehicle (PHEV), resonate converter, zero-current switching (ZCS), zero-voltage switching (ZVS)",

author = "Junjun Deng and Mi, \{Chunting Chris\} and Ruiqing Ma and Siqi Li",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.",

year = "2015",

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doi = "10.1109/TMECH.2014.2349791",

language = "English",

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journal = "IEEE/ASME Transactions on Mechatronics",

issn = "1083-4435",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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}

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T1 - Design of LLC Resonant Converters Based on Operation-Mode Analysis for Level Two PHEV Battery Chargers

AU - Deng, Junjun

AU - Mi, Chunting Chris

AU - Ma, Ruiqing

AU - Li, Siqi

PY - 2015/8/1

Y1 - 2015/8/1

N2 - In this paper, the efficiency-oriented design considerations are discussed based on the operation-mode analysis of the LLC converter considering the characteristics of charging profiles. The mode boundaries and distribution are obtained from the precise time-domain model. The operation modes featuring both-side soft-switching capability are identified to design the operating trace of the charging process. Then the design constraints for achieving soft switching with the load varying from zero up to the maximum are discussed. Finally, a charging trajectory design methodology is proposed and validated through experiments on a prototype converting 390 V from the dc power source to the battery emulator in the range of 250-450 V at 6.6 kW with a peak efficiency of 97.96%.

AB - In this paper, the efficiency-oriented design considerations are discussed based on the operation-mode analysis of the LLC converter considering the characteristics of charging profiles. The mode boundaries and distribution are obtained from the precise time-domain model. The operation modes featuring both-side soft-switching capability are identified to design the operating trace of the charging process. Then the design constraints for achieving soft switching with the load varying from zero up to the maximum are discussed. Finally, a charging trajectory design methodology is proposed and validated through experiments on a prototype converting 390 V from the dc power source to the battery emulator in the range of 250-450 V at 6.6 kW with a peak efficiency of 97.96%.

KW - Battery

KW - LLC resonant converter

KW - battery charger

KW - dc-dc converter

KW - electric vehicle

KW - plug-in hybrid electric vehicle (PHEV)

KW - resonate converter

KW - zero-current switching (ZCS)

KW - zero-voltage switching (ZVS)

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JF - IEEE/ASME Transactions on Mechatronics

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ER -

Design of LLC Resonant Converters Based on Operation-Mode Analysis for Level Two PHEV Battery Chargers

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Keywords

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