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Article: Cascaded High-Voltage-Gain Bidirectional Switched-Capacitor DC–DC Converters for Distributed Energy Resources Applications

TitleCascaded High-Voltage-Gain Bidirectional Switched-Capacitor DC–DC Converters for Distributed Energy Resources Applications
Authors
KeywordsBidirectional
high-voltage gain
renewable energy
switched-capacitor
Issue Date2017
PublisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=63
Citation
IEEE Transactions on Power Electronics, 2017, v. 32 n. 2, p. 1220-1231 How to Cite?
AbstractA family of bidirectional switched-capacitor (SC) converters with high gain ratio of any positive integer is proposed in this paper for distributed energy resources (DERs) applications. As compared with other existing SC converters achieving a same conversion gain, the main advantages of the proposed converters are that they require a relatively lower number of switches and capacitors, have a relatively lower switch’s and capacitor’s stress, and that their associated driver circuits are simpler to realize. Importantly, with the achievable conversion ratio being flexible and that the input and output of the proposed converters are of common ground, the proposed converters are widely suitable for many applications. Moreover, as the proposed converters do not possess magnetic component or any component that can severely degrade the converters’ performance at high temperature, they are especially useful for high-temperature applications. Besides, the proposed converters are capable of delivering bidirectional power, which is a key requirement for emerging applications with battery storages. Different aspects of the proposed converters, including a simple auxiliary power supply circuit for the MOSFETs’ drivers, will be discussed in this paper. A 9-time SC converter prototype that operates with 20 V input voltage, 100 W output, and at 75 kHz, is constructed and tested. Experiment results show that the maximum efficiency achievable with this prototype is over 98% (without driver’s loss) and the efficiency over the entire load range between 25 W and 100 W is over 95.5% including the driver’s loss. The output voltage ripple of the SC converter is less than 1%. When the SC converter is open-loop controlled, the load voltage regulation is relatively well kept at less than 5% between full load and no load conditions.
Persistent Identifierhttp://hdl.handle.net/10722/236406
ISSN
2023 Impact Factor: 6.6
2023 SCImago Journal Rankings: 3.644
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorXiong, S-
dc.contributor.authorTan, SC-
dc.date.accessioned2016-11-25T00:52:56Z-
dc.date.available2016-11-25T00:52:56Z-
dc.date.issued2017-
dc.identifier.citationIEEE Transactions on Power Electronics, 2017, v. 32 n. 2, p. 1220-1231-
dc.identifier.issn0885-8993-
dc.identifier.urihttp://hdl.handle.net/10722/236406-
dc.description.abstractA family of bidirectional switched-capacitor (SC) converters with high gain ratio of any positive integer is proposed in this paper for distributed energy resources (DERs) applications. As compared with other existing SC converters achieving a same conversion gain, the main advantages of the proposed converters are that they require a relatively lower number of switches and capacitors, have a relatively lower switch’s and capacitor’s stress, and that their associated driver circuits are simpler to realize. Importantly, with the achievable conversion ratio being flexible and that the input and output of the proposed converters are of common ground, the proposed converters are widely suitable for many applications. Moreover, as the proposed converters do not possess magnetic component or any component that can severely degrade the converters’ performance at high temperature, they are especially useful for high-temperature applications. Besides, the proposed converters are capable of delivering bidirectional power, which is a key requirement for emerging applications with battery storages. Different aspects of the proposed converters, including a simple auxiliary power supply circuit for the MOSFETs’ drivers, will be discussed in this paper. A 9-time SC converter prototype that operates with 20 V input voltage, 100 W output, and at 75 kHz, is constructed and tested. Experiment results show that the maximum efficiency achievable with this prototype is over 98% (without driver’s loss) and the efficiency over the entire load range between 25 W and 100 W is over 95.5% including the driver’s loss. The output voltage ripple of the SC converter is less than 1%. When the SC converter is open-loop controlled, the load voltage regulation is relatively well kept at less than 5% between full load and no load conditions.-
dc.languageeng-
dc.publisherInstitute of Electrical and Electronics Engineers. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=63-
dc.relation.ispartofIEEE Transactions on Power Electronics-
dc.rightsIEEE Transactions on Power Electronics. Copyright © Institute of Electrical and Electronics Engineers.-
dc.rights©2017 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.subjectBidirectional-
dc.subjecthigh-voltage gain-
dc.subjectrenewable energy-
dc.subjectswitched-capacitor-
dc.titleCascaded High-Voltage-Gain Bidirectional Switched-Capacitor DC–DC Converters for Distributed Energy Resources Applications-
dc.typeArticle-
dc.identifier.emailXiong, S: sxiong@eee.hku.hk-
dc.identifier.emailTan, SC: sctan@eee.hku.hk-
dc.identifier.authorityTan, SC=rp01606-
dc.identifier.doi10.1109/TPEL.2016.2552380-
dc.identifier.scopuseid_2-s2.0-84999115048-
dc.identifier.hkuros270501-
dc.identifier.hkuros270647-
dc.identifier.volume32-
dc.identifier.issue2-
dc.identifier.spage1220-
dc.identifier.epage1231-
dc.identifier.isiWOS:000388867300029-
dc.publisher.placeUnited States-
dc.identifier.issnl0885-8993-

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