Design of SiC MOSFET medium voltage bipolar DC-DC converter based on buck structure

  • Zuoyu Wei
  • , Kefan Yu
  • , Dongxin Zhang
  • , Xiaoping Sun
  • , Yuguo Li
  • , Feng Wang
  • , Fang Zhuo
  • , Hao Yi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Medium Voltage (MV) DC-DC converters are now widely used in DC power supply and distributed generation systems [1]. This paper proposes a new Non-isolated MV DC-DC bipolar converter topology based on the buck circuit structure. The new topology can replace traditional isolated DC-DC topologies to some extent, such as dual active bridgesDABin DC bipolar distribution system. This can greatly reduce the cost of the system and the difficulty of control. Wide bandgap devices Silicon carbide (SiC) Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) are used to replace traditional silicon-based MOSFETs or IGBTs in the experimental prototype. At the same time, high-inductor-current ripple method is used to reduce overall losses and further increase the power density of the converter. Finally, the correctness of this control strategy and the feasibility of this topology are verified by simulation.

Original languageEnglish
Title of host publicationPEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages684-687
Number of pages4
ISBN (Electronic)9781728124551
DOIs
StatePublished - Jun 2019
Event10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019 - Xi'an, China
Duration: 3 Jun 20196 Jun 2019

Publication series

NamePEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems

Conference

Conference10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019
Country/TerritoryChina
CityXi'an
Period3/06/196/06/19

Keywords

  • Buck circuit
  • High-inductor-current ripple method
  • MV DC-DC Converters
  • Silicon carbide MOSFET

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