Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHuang, Jingjingen_US
dc.contributor.authorZhang, Xinen_US
dc.contributor.authorZhang, Aiminen_US
dc.contributor.authorWang, Pengen_US
dc.identifier.citationHuang, J., Zhang, X., Zhang, A. & Wang, P. (2020). Comprehensive coordinated frequency control of symmetrical CLLC-DC transformer in hybrid AC/DC microgrids. IEEE Transactions On Power Electronics, 35(10), 10374-10384.
dc.description.abstractIn hybrid ac/dc microgrids, a bus converter system involving the use of a high-frequency dc transformer (DCT) plays a vital role to transmit power between dc and ac subgrids. However, the multiple control tasks and power transfer mode switching of bidirectional dc/ac converter create big challenges for the systematic controller design of DCT. To address this concern, a comprehensive coordinated frequency control (CCFC) is put forward in this article for the symmetrical CLLC-DCT to adapt the complicated hybrid ac/dc microgrid operation. By establishing the mathematical model on the voltage conversion gain (VCG) and active power transmission ratio (APTR), four operation modes are proposed based on power transfer conditions. The corresponding operators are derived based on the circuit feature to avoid the redundant manipulations. Frequency threshold is determined to avoid both overvoltage and low-voltage issues based on the known allowable range of VCG. The proposed CCFC scheme is detailedly realized by combining both the open-loop and closed-loop schemes to facilitate the design procedure. The prototype DCT demonstrates the proposed CCFC scheme can achieve a peak efficiency of 98.2% and satisfied performances on both VCG and APTR.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNanyang Technological Universityen_US
dc.relationRG 85/18en_US
dc.relation.ispartofIEEE Transactions on Power Electronicsen_US
dc.rights© 2020 IEEE. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleComprehensive coordinated frequency control of symmetrical CLLC-DC transformer in hybrid AC/DC microgridsen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen_US
dc.subject.keywordsActive Power Transmission Ratioen_US
dc.subject.keywordsCoordinated Frequency Controlen_US
dc.description.acknowledgementThis work was supported in part by MOE Tier1 under Grant RG 85/18 and in part by the Nanyang Technological University’s start-up Grant of Prof. Zhang Xin.en_US
item.fulltextNo Fulltext-
Appears in Collections:EEE Journal Articles

Citations 10

Updated on Dec 5, 2023

Web of ScienceTM
Citations 10

Updated on Oct 27, 2023

Page view(s)

Updated on Dec 8, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.