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Conference Paper: Capacitor-Clamped LLC Resonant Converter for Constant Power EV Charging with Fixed Operation Frequency

TitleCapacitor-Clamped LLC Resonant Converter for Constant Power EV Charging with Fixed Operation Frequency
Authors
KeywordsLLC resonant converter
soft switching
constant power
constant frequency
EV charging
Issue Date2020
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000047
Citation
2020 IEEE Applied Power Electronics Conference and Exposition (APEC), New Orleans, LA, USA, 15-19 March 2020, p. 3478-3483 How to Cite?
AbstractLLC resonant converter is one of the most preferred topologies for electric vehicle (EV) battery charging. However, the wide voltage range of batteries requires a wide frequency excursion of LLC resonant converters, which is undesirable from the efficiency, power density and cost perspectives. This paper is focused on improving the operation of a type of LLC resonant converter, namely, the capacitor-clamped LLC resonant converter that was originally proposed for over-current protection purpose and which only operates in the zero-voltage-switching (ZVS) region of conventional LLC resonant converters. It is found that this converter, when operated in the zero-current-switching (ZCS) region, can actually achieve ZVS whilst demonstrating several new features as compared to the conventional LLC resonant converter, including constant frequency operation for constant power operation. This leads to a an elegant solution of improving system's efficiency and power density with very simple control and at a low cost. Both simulation and experiments are conducted to testify the viability of the proposed solution.
Persistent Identifierhttp://hdl.handle.net/10722/290265
ISSN

 

DC FieldValueLanguage
dc.contributor.authorWu, J-
dc.contributor.authorLi, S-
dc.contributor.authorTan, SC-
dc.contributor.authorHui, SYR-
dc.date.accessioned2020-10-22T08:24:19Z-
dc.date.available2020-10-22T08:24:19Z-
dc.date.issued2020-
dc.identifier.citation2020 IEEE Applied Power Electronics Conference and Exposition (APEC), New Orleans, LA, USA, 15-19 March 2020, p. 3478-3483-
dc.identifier.issn1048-2334-
dc.identifier.urihttp://hdl.handle.net/10722/290265-
dc.description.abstractLLC resonant converter is one of the most preferred topologies for electric vehicle (EV) battery charging. However, the wide voltage range of batteries requires a wide frequency excursion of LLC resonant converters, which is undesirable from the efficiency, power density and cost perspectives. This paper is focused on improving the operation of a type of LLC resonant converter, namely, the capacitor-clamped LLC resonant converter that was originally proposed for over-current protection purpose and which only operates in the zero-voltage-switching (ZVS) region of conventional LLC resonant converters. It is found that this converter, when operated in the zero-current-switching (ZCS) region, can actually achieve ZVS whilst demonstrating several new features as compared to the conventional LLC resonant converter, including constant frequency operation for constant power operation. This leads to a an elegant solution of improving system's efficiency and power density with very simple control and at a low cost. Both simulation and experiments are conducted to testify the viability of the proposed solution.-
dc.languageeng-
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/conhome.jsp?punumber=1000047-
dc.relation.ispartofIEEE Applied Power Electronics Conference and Exposition (APEC) Proceedings-
dc.rightsIEEE Applied Power Electronics Conference and Exposition (APEC) Proceedings. Copyright © IEEE.-
dc.rights©2020 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.-
dc.subjectLLC resonant converter-
dc.subjectsoft switching-
dc.subjectconstant power-
dc.subjectconstant frequency-
dc.subjectEV charging-
dc.titleCapacitor-Clamped LLC Resonant Converter for Constant Power EV Charging with Fixed Operation Frequency-
dc.typeConference_Paper-
dc.identifier.emailTan, SC: sctan@eee.hku.hk-
dc.identifier.emailHui, SYR: ronhui@eee.hku.hk-
dc.identifier.authorityTan, SC=rp01606-
dc.identifier.authorityHui, SYR=rp01510-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1109/APEC39645.2020.9124596-
dc.identifier.scopuseid_2-s2.0-85087749287-
dc.identifier.hkuros317362-
dc.identifier.spage3478-
dc.identifier.epage3483-
dc.publisher.placeUnited States-

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