Highly Reliable Diode-Clamped Resonant DC/DC Converter for Overloaded Automotive Applications

Muhammad Mubeen Khan, Minsung Kim

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

This article proposes a diode-clamped resonant dc/dc converter having overload capability. The electric motor is able to demand short-time peak torque during sudden acceleration phase or long-time excessive torque when the automobiles are overloaded; it can also suffer from a short circuit fault of winding. Then, conventional full-bridge resonant dc/dc converters employing the secondary-side switching undergo very high current spike at the semiconductor devices on the secondary side when the load exceeds its threshold. By incorporating resonant diode-clamped cell, we have removed the high current spike occurred at the secondary-side power devices. In addition, its secondary-side switches can be completely turned off with zero-voltage-switching so that all of the active devices can be softly switched. Furthermore, the proposed converter can survive when its output nodes are short-circuited. Comparisons present the benefit of the proposed converter over conventional converters that use the secondary-side switching.

Original languageEnglish
Pages (from-to)911-924
Number of pages14
JournalIEEE Transactions on Transportation Electrification
Volume10
Issue number1
DOIs
StatePublished - 1 Mar 2024

Keywords

  • Diode-clamped cell
  • excessive torque
  • resonant converter
  • secondary-side switching
  • short circuit fault

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