Effects of modularity on the performance and reliability of SiC MOSFET-based active front-end rectifiers in EV charging application

Research output: Chapter in Book/Report/Conference proceedingConference paperResearch

1 Citation (Scopus)

Abstract

This paper compares the overall performance and reliability of modular and non-modular active front-end (AFE) rectifiers in electric vehicle (EV) charging applications, based on the high-fidelity electro-thermal modellling of the AFE rectifiers. The model contains the output characteristics of the SiC MOSFETs and their body diodes, the switching and conducting losses, as well as the effect of junction temperature, operating voltage, and currents. The Foster thermal network is used to estimate the SiC MOSFET junction temperature variation for both cases. A physics-of-failure-based reliability assessment tool is used to evaluate the component level reliability of the SiC MOSFETs based on the junction temperature, and the reliability of the DC link capacitor based on its voltage and temperature. Then the reliability of the converter is evaluated using a series reliability network for the non-modular and modular cases. The efficiency and performance of the systems are evaluated during a five-hour EV charging profile. During this time, the modular system shows an increase in efficiency of 5.3% and a decrease in the total harmonic distortion(THD) of the grid side currents by 71%. The MOSFET losses are reduced by 32%, and the filter losses by 51%. Moreover, in the modular case, the MOSFET junction temperature swings are three times smaller, and the maximum junction temperature is lowered by 7 degrees. This results in a significant increase in the component-level and system-level reliability in the modular case.

Original languageEnglish
Title of host publicationIECON 2022 - 48th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE
Number of pages7
ISBN (Electronic)9781665480253
ISBN (Print)978-1-6654-8025-3
DOIs
Publication statusPublished - 9 Dec 2022
Event48th Annual Conference of the IEEE Industrial Electronics Society
IECON 2022 : Conference session- Power Electronics & Energy Conversion
- Brussels, Brussels, Belgium
Duration: 17 Oct 202220 Oct 2022
https://iecon2022.org/conference-program/

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2022-October

Conference

Conference48th Annual Conference of the IEEE Industrial Electronics Society
IECON 2022
Abbreviated titleIECON2022
Country/TerritoryBelgium
CityBrussels
Period17/10/2220/10/22
Internet address

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This research is part of the ModulAr SBO project funded and supported by Flanders Make vzw, the strategic research centre for the manufacturing industry.

Publisher Copyright:
© 2022 IEEE.

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

Keywords

  • SiC MOSFET
  • Reliability
  • Modular AFE Rectifier
  • EV Charger

Fingerprint

Dive into the research topics of 'Effects of modularity on the performance and reliability of SiC MOSFET-based active front-end rectifiers in EV charging application'. Together they form a unique fingerprint.

Cite this