Dereje Woldegiorgis Source Confirmed

Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.

Researcher

University of Arkansas at Fayetteville

faculty

10 h-index 38 pubs 274 cited

Research Areas

Advancements in Semiconductor Devices and Circuit Design Silicon Carbide Semiconductor Technologies Multilevel Inverters and Converters Semiconductor materials and devices Power Electronics Control and Modeling

Links

ORCID Research Group

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OverviewAI-generated summary

Dereje Woldegiorgis's research focuses on power electronics, particularly the application of hybrid silicon (Si) and silicon carbide (SiC) switches in power converters. His work investigates advanced inverter topologies, such as the ANPC inverter, aiming for higher efficiency and reduced cost. Woldegiorgis has published on precise electro-thermal power loss modeling for these hybrid switching devices and explored control objectives, gate driving approaches, and packaging solutions for Si/SiC hybrid switches. He has also examined specific applications, including HVDC systems and five-level hybrid inverters. Woldegiorgis collaborates with researchers at the University of Arkansas at Fayetteville, including Alan Mantooth and Xia Du, with whom he has co-authored multiple publications. His scholarship metrics include an h-index of 10 and 274 total citations across 38 publications.

Metrics

  • h-index: 10
  • Publications: 38
  • Citations: 274

Selected Publications

  • Arm Energy Investigation and Submodule Capacitor Sizing for the Asymmetric Alternate Arm Converter Topology (2023) DOI
  • Hybrid Si/SiC Switches: A Review of Control Objectives, Gate Driving Approaches and Packaging Solutions (2022) DOI
  • Converter Arm Energy Model and Submodule Capacitor Sizing for the Asymmetric Alternate Arm Converter Topology (2022) DOI
  • Precise Electro-thermal Power Loss Model of a Three-level ANPC Inverter with Hybrid Si/SiC Switches (2022) DOI
  • Power Relay Based Multiple Device Cryogenic Characterization Method and Results (2022) DOI
  • A Modified Neutral-point Voltage Control Strategy for Three-level Inverters Based on Decomposition of Space Vector Diagram (2022) DOI
  • Accurate Power Loss Model of a Three-level ANPC Inverter Utilizing Hybrid Si/SiC Switching Devices (2021) DOI
  • Investigation of a New Alternate Arm Modular Multilevel Converter Topology for HVDC Applications (2021) DOI
  • A New Hybrid Voltage Source Converter With Reduced Active Switch Count for HVDC Applications (2021) DOI
  • Three-level Interleaved Voltage Source Inverter Topology Employing Hybrid "Si+SiC" Switches (2021) DOI
  • Five-level Hybrid T-type Inverter Topology with Mixed "Si+SiC" Semiconductor Device Configuration (2021) DOI
  • Application of An Active Gate Driver for Paralleling Operation of Si IGBT and SiC MOSFET (2021) DOI
  • Four Control Freedoms AGD for Hybrid SiC MOSFET and Si IGBT Application (2021) DOI
  • Simple Carrier Based Capacitor Voltage Balancing Technique for Three-Level Voltage Source Inverters (2021) DOI
  • A High Efficiency and Low Cost ANPC Inverter Using Hybrid Si/SiC Switches (2021) DOI

Collaborators

Researchers in the database who share publications

Alan Mantooth University of Arkansas at Fayetteville 6 shared publications H. Alan Mantooth University of Arkansas at Fayetteville 3 shared publications Xia Du University of Arkansas at Fayetteville 3 shared publications Md Maksudul Hossain University of Arkansas at Fayetteville 2 shared publications Rosten Sweeting University of Arkansas at Fayetteville 1 shared publication Venkata Samhitha Machireddy University of Arkansas at Fayetteville 1 shared publication

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