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Research Areas
Power electronics and energy systems; Specific research interests include
- Energy conversion and control for solar, wind, and other renewable and distributed generation technologies; offshore wind, HVDC and FACTS
- Grid integration of solar and wind energy; stability and power quality of power grid with deep penetration of renewable energy and distributed generation
- Smart grids, micro-grids; mobile and autonomous energy systems (aircraft, ships, ground vehicles); system modeling and control
- Energy storage applications in renewable energy systems
- Modular power conversion and advanced PWM and control techniques for modular power converters
- High-frequency power conversion using wide bandgap semiconductor devices (GaN and SiC); modular power conversion system architecture and control
- Efficient energy utilization; high-efficient power conversion and conditioning for electronics, communication, lighting, and other applications
- Electromagnetic interference (EMI) in power and power electronic systems; high-performance power conversion for aerospace applications
- General power electronic circuit topologies, modeling, and control
Current Research Projects
- Stability and Control of Cluster Converters Connected to Weak Grid
- HVDC Transmission Architecture and Control for Offshore Wind
- Voltage Stability and Control in Smart Grid
- DC Micro Grid for Integration of Renewable Energy and Energy Storage
- Integrated Single-Chip Solid State Lighting Driver Developing Using GaN Devices
- GaN-Based High Frequency Power Conversion for Aircraft Applications
- EMI Modeling and Design Optimization for More Electric Aircraft
- Aircraft Power System Modeling and Simulation
- High Density, High Efficiency Electrical Power Generation System for UAS Applications
Professional Services (Partial List)
- Editor-in-Chief, IEEE Power Electronics Letters
- Guest Editor, IEEE Transactions on Power Electronics, Special Issue on Modeling and Advanced Control
- Administrative Committee (AdCom) Member, IEEE Systems Council
- Chair, IEEE Power Electronics Society Technical Committee on Modeling, Simulation, and Control
- General Chair, 2006 IEEE Workshop on Computers in Power Electronics
- Co-Chair, Technical Program Committee of 4th IEEE Energy Conversion Conference and Exposition (ECCE 2012)
- Vice Chair, Technical Program Committee of 2nd IEEE Energy Conversion Conference and Exposition (ECCE 2010, Atlanta, September 2010)
- Publication Chair, 1st IEEE Energy Conversion Conference and Exposition (ECCE)
- Vice Technical Program Committee Chair, 1st IEEE Energy Conversion Conference and Exposition (ECCE)
- Consultant to a dozen US companies
Teaching
- ECSE/EPOW 4080 – Semiconductor Power Electronics (offered every fall semester)
- EPOW 6820 – Power Quality (offered in the spring semester of odd-numbered years)
- EPOW 6090 – Advanced Power Electronics Lab (offered in the spring semester of even-numbered years)
- Independent Studies on Modeling and Control in Power Electronics, Voltage Source Converters, and Power Electronic Systems
Education and Industry Experience
- Ph.D. in Electrical Engineering, University of Paderborn , Paderborn, Germany, 1995
- MS in Electrical Engineering, Beijing University of Aeronautics and Astronautics , China, 1989
- BS in Electrical Engineering, Nanjing University of Aeronautics and Astronautics , China, 1984
- Post-Doctoral Fellow, School of Electrical and Computer Engineering , Georgia Institute of Technology , 1996-1997
- Senior Engineer, Advanced Technology Center , Rockwell Collins , 1997-1999
- Principal Engineer, Advanced Technology Center , Rockwell Collins , 2000-2002
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