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AuthorBhaskar M.S.
AuthorMeraj M.
AuthorIqbal A.
AuthorPadmanaban S.
Available date2020-04-01T09:45:58Z
Publication Date2019
Publication NameIEEE Transactions on Industry Applications
ResourceScopus
ISSN939994
URIhttp://dx.doi.org/10.1109/TIA.2019.2936178
URIhttp://hdl.handle.net/10576/13733
AbstractThis article proposed a nonisolated symmetrical interleaved multilevel boost converter for high-voltage microgrid applications. The proposed converter configuration is derived from the integration of a voltage multiplier (VM) circuit with the front-end structure of the classical two-phase interleaved converter. Moreover, equal voltage rating capacitors and diodes are suitable to design multiple stages of the proposed converter. The proposed converter can feed from two independent sources or single source in the interleaved approach. The continuous input current, high-voltage gain, reduced voltage rating of capacitor (that causes reduction in cost), reduced components, and flexibility in number of sources make the proposed converter more attractive for renewable dc-microgrid applications such as, photovoltaic (PV) system, fuel cell (FC) system, and hybrid PV-FC system. Furthermore, the voltage gain of the converter can be increased by just adding similar stages of VM without preferring the high-voltage rating capacitors and without disturbing the front-end structure of the converter. Nonidealities are considered to analyze the proposed converter in a more practical way. The characteristics and operation of the proposed converter are discussed in this article with the continuous conduction mode and Discontinuous Conduction Mode boundary conditions. The design of the reactive components and selection of semiconductor devices are discussed. Additionally, the proposed converter is compared with recently proposed DC-DC multilevel converters. To support the proposed work, simulation and experimental results are provided which shows a good agreement with the analytical approach. - 1972-2012 IEEE.
SponsorManuscript received December 18, 2018; revised April 16, 2019; accepted August 1, 2019. Date of publication August 18, 2019; date of current version November 7, 2019. Paper 2018-HPC-1322.R1, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the High Performance Power Electronic Converters: Topologies, Control, and Devices of the IEEE Industry Applications Society. This work was supported by the NPRP grant X-033-2-007 from the Qatar National Research Fund (a member of Qatar Foundation). (Corresponding author: Atif Iqbal.) M. S. Bhaskar, M. Meraj, and A. Iqbal are with the Department of Electric Engineering, Qatar University, Doha 2713, Qatar (e-mail: sagar25. mahajan@gmail.com; meraj@qu.edu.qa; atif.iqbal@qu.edu.qa).
Languageen
PublisherInstitute of Electrical and Electronics Engineers Inc.
SubjectCapacitors
DC-DC converter
diodes
high-voltage gain
interleaved
nonisolated
voltage multiplier (VM)
TitleNonisolated Symmetrical Interleaved Multilevel Boost Converter with Reduction in Voltage Rating of Capacitors for High-Voltage Microgrid Applications
TypeArticle
Pagination7410-7424
Issue Number6
Volume Number55
dc.accessType Abstract Only


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