Dereje Woldegiorgis
Affiliation confirmed via AI analysis of OpenAlex, ORCID, and web sources.
Researcher
Also affiliated: University of Nottingham (2016)
Faculty Researcher
Research Areas
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Biography and Research Information
OverviewAI-generated summary
Dereje Woldegiorgis' research focuses on power electronics, particularly the development and modeling of advanced inverter technologies. His work includes investigating hybrid silicon (Si) and silicon carbide (SiC) switches for high-efficiency, low-cost applications, such as in ANPC (Active Neutral Point Clamped) inverters. Woldegiorgis has published on control objectives, gate driving approaches, and packaging solutions for these hybrid switches, as well as precise electro-thermal power loss models for three-level ANPC inverters utilizing them. He has also explored active gate drivers for paralleling Si IGBTs and SiC MOSFETs and developed new hybrid voltage source converters with reduced active switch counts for HVDC applications. Woldegiorgis collaborates with researchers at the University of Arkansas at Fayetteville, including H. Alan Mantooth, Xia Du, Md Maksudul Hossain, and Rosten Sweeting. His scholarship metrics include an h-index of 10, with 37 total publications and 288 total citations.
Metrics
- h-index: 10
- Publications: 37
- Citations: 300
Selected Publications
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Arm Energy Investigation and Submodule Capacitor Sizing for the Asymmetric Alternate Arm Converter Topology (2023)
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Hybrid Si/SiC Switches: A Review of Control Objectives, Gate Driving Approaches and Packaging Solutions (2022)
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Converter Arm Energy Model and Submodule Capacitor Sizing for the Asymmetric Alternate Arm Converter Topology (2022)
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Precise Electro-thermal Power Loss Model of a Three-level ANPC Inverter with Hybrid Si/SiC Switches (2022)
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Power Relay Based Multiple Device Cryogenic Characterization Method and Results (2022)
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A Modified Neutral-point Voltage Control Strategy for Three-level Inverters Based on Decomposition of Space Vector Diagram (2022)
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Accurate Power Loss Model of a Three-level ANPC Inverter Utilizing Hybrid Si/SiC Switching Devices (2021)
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Investigation of a New Alternate Arm Modular Multilevel Converter Topology for HVDC Applications (2021)
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A New Hybrid Voltage Source Converter With Reduced Active Switch Count for HVDC Applications (2021)
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Three-level Interleaved Voltage Source Inverter Topology Employing Hybrid "Si+SiC" Switches (2021)
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Five-level Hybrid T-type Inverter Topology with Mixed "Si+SiC" Semiconductor Device Configuration (2021)
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Application of An Active Gate Driver for Paralleling Operation of Si IGBT and SiC MOSFET (2021)
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Four Control Freedoms AGD for Hybrid SiC MOSFET and Si IGBT Application (2021)
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Simple Carrier Based Capacitor Voltage Balancing Technique for Three-Level Voltage Source Inverters (2021)
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A High Efficiency and Low Cost ANPC Inverter Using Hybrid Si/SiC Switches (2021)
Collaboration Network
Top Collaborators
- A High Efficiency and Low Cost ANPC Inverter Using Hybrid Si/SiC Switches
- Hybrid Si/SiC Switches: A Review of Control Objectives, Gate Driving Approaches and Packaging Solutions
- Precise Electro-thermal Power Loss Model of a Three-level ANPC Inverter with Hybrid Si/SiC Switches
- A New Hybrid Voltage Source Converter With Reduced Active Switch Count for HVDC Applications
- A Modified Neutral-point Voltage Control Strategy for Three-level Inverters Based on Decomposition of Space Vector Diagram
Showing 5 of 7 shared publications
- Application of An Active Gate Driver for Paralleling Operation of Si IGBT and SiC MOSFET
- Four Control Freedoms AGD for Hybrid SiC MOSFET and Si IGBT Application
- Accurate Power Loss Model of a Three-level ANPC Inverter Utilizing Hybrid Si/SiC Switching Devices
- Five-level Hybrid T-type Inverter Topology with Mixed "Si+SiC" Semiconductor Device Configuration
- Simple Carrier Based Capacitor Voltage Balancing Technique for Three-Level Voltage Source Inverters
Showing 5 of 7 shared publications
- A High Efficiency and Low Cost ANPC Inverter Using Hybrid Si/SiC Switches
- Hybrid Si/SiC Switches: A Review of Control Objectives, Gate Driving Approaches and Packaging Solutions
- Application of An Active Gate Driver for Paralleling Operation of Si IGBT and SiC MOSFET
- Four Control Freedoms AGD for Hybrid SiC MOSFET and Si IGBT Application
- Simple Carrier Based Capacitor Voltage Balancing Technique for Three-Level Voltage Source Inverters
Showing 5 of 6 shared publications
- Application of An Active Gate Driver for Paralleling Operation of Si IGBT and SiC MOSFET
- Power Relay Based Multiple Device Cryogenic Characterization Method and Results
- Hybrid Si/SiC Switches: A Review of Control Objectives, Gate Driving Approaches and Packaging Solutions
- Power Relay Based Multiple Device Cryogenic Characterization Method and Results
- A High Efficiency and Low Cost ANPC Inverter Using Hybrid Si/SiC Switches
- Four Control Freedoms AGD for Hybrid SiC MOSFET and Si IGBT Application
- Hybrid Si/SiC Switches: A Review of Control Objectives, Gate Driving Approaches and Packaging Solutions
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