Hybrid-Mode Adaptive Zero-Voltage Switching for Single-Phase DC–AC Conversion With Paralleled SiC MOSFETs

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

7 Scopus Citations
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Author(s)

  • Yunlei Jiang
  • Yanfeng Shen
  • Luke Shillaber
  • Borong Hu
  • Teng Long

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)14067-14081
Journal / PublicationIEEE Transactions on Power Electronics
Volume37
Issue number12
Online published8 Jul 2022
Publication statusPublished - Dec 2022

Link(s)

Abstract

State-of-the-art soft-switching modulations such as critical conduction mode (CrM) and Triangular Current Mode (TCM) increase the conduction loss of power semiconductors and require variable switching frequencies, thus these soft-switching methods are seldom used in high-power DC-AC conversion. To achieve soft-switching while maintaining low RMS currents, this article proposes a Hybrid Quadrilateral and Continuous Current Mode (HQCCM) modulation for general high-frequency single-phase DC-AC conversion based on paralleled SiC MOSFETs. The proposed HQCCM adaptively operates in soft-switching Quadrilateral Current Mode (QCM) or hard-switching Continuous Conduction Mode (CCM) in one AC line cycle depending on the instantaneous AC load current. Thus, high efficiencies can be achieved over the full power range. This HQCCM modulation features adaptive soft-switching, constant switching frequency, compatibility to line filter and is applicable for high-power applications. A 4.4-kW single-phase DC-AC inverter is developed and tested to verify the advantages of the HQCCM. This article is accompanied by a video demonstrating the effectiveness of the proposed HQCCM in varying load scenarios.

Research Area(s)

  • Continuous conduction mode (CCM), Inductors, Inverters, Legged locomotion, Modulation, parallel metal oxide semiconductor field-effect transistor (MOSFETs), quadrilateral current mode (QCM), Single-phase inverter, soft-switching, Switches, Switching frequency, Voltage

Citation Format(s)

Hybrid-Mode Adaptive Zero-Voltage Switching for Single-Phase DC–AC Conversion With Paralleled SiC MOSFETs. / Jiang, Yunlei; Shen, Yanfeng; Shillaber, Luke et al.
In: IEEE Transactions on Power Electronics, Vol. 37, No. 12, 12.2022, p. 14067-14081.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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