Modular Universal Converter for MVDC Applications

Liran Zheng, Xiangyu Han, Zheng An, Rajendra Prasad Kandula, Karthik Kandasamy, Maryam Saeedifard, Deepak Divan

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

34 Scopus citations

Abstract

This paper presents the design and build of a universal MVDC converter that can interface either LVAC or LVDC while providing bi-directional power flow and high-frequency isolation. The proposed universal MVDC converter module can serve as a building block for higher-voltage higher-power systems. The converter modules are based on the soft-switching solid-state transformer (S4T), realized using 3.3 kV SiC MOSFETs, and can provide integrated high-frequency isolation, low EMI through low dv/dt, and high efficiency over the full operating load range realized with soft-switching techniques. The topology, operating principle, control philosophy addressing challenges associated with modular converters including dynamic and steady-state voltage sharing between modules on the HV side, design and selection of components to realize a 50 kVA 5 kV DC to 600 V DC/480 V AC is presented. Simulation results verifying the operation of the MVDC converter are also presented.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5544-5551
Number of pages8
ISBN (Electronic)9781479973118
DOIs
StatePublished - Dec 3 2018
Externally publishedYes
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: Sep 23 2018Sep 27 2018

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
Country/TerritoryUnited States
CityPortland
Period09/23/1809/27/18

Keywords

  • Current-source converter
  • MVDC converter
  • Soft switching
  • Solid-state transformer

Fingerprint

Dive into the research topics of 'Modular Universal Converter for MVDC Applications'. Together they form a unique fingerprint.

Cite this