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A Isolated Bidirectional DC/DC Converter with Low-Voltage IGBTs for Solid-State Transformers

  • School of Electrical Engineering and Automation, Harbin Institute of Technology
  • Electronics Technology Group Corporation

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

Abstract

In order to reduce footprint and improve efficiency, solid-state transformer (SST) is an attractive technology for traction and smart grid applications. As the key components of SST, the conventional isolated bidirectional DC/DC converter (IBDC) is hard to guarantee high efficiency and high power density at the same time, due to the limitations of switching characteristics of semiconductor devices and high insulation requirements of medium frequency transformer (MFT). In this paper, a new IBDC topology is proposed, which is characterized by utilizing low-voltage IGBTs with excellent switching characteristics to build high voltage configuration. This helps to reduce the number of the MFTs. Meanwhile, the zero-current switching (ZCS) conditions for all the IGBTs can be guaranteed. This significantly reduce switching losses. The operation principles of the proposed IBDC are analyzed, and the feasibility is verified by simulation results.

Original languageEnglish
Title of host publication2020 4th International Conference on HVDC, HVDC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages982-985
Number of pages4
ISBN (Electronic)9781728175935
DOIs
StatePublished - 6 Nov 2020
Externally publishedYes
Event4th International Conference on HVDC, HVDC 2020 - Xi'an, China
Duration: 6 Nov 20209 Nov 2020

Publication series

Name2020 4th International Conference on HVDC, HVDC 2020

Conference

Conference4th International Conference on HVDC, HVDC 2020
Country/TerritoryChina
CityXi'an
Period6/11/209/11/20

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • costs
  • efficiency
  • isolated bidirectional DC/DC converter
  • power density
  • solid state transformer

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