Electric Power Technical Interest Group

1. Electric Power Technical Interest Group • ECE offers one of the country’s leading undergraduate and graduate academic programs in electric power engineering • Broad range of activities relative to peers in power: • power systems • power electronics and controls • power apparatus (machines, semiconductors, high voltage equipment) • photovoltaics

2. Faculty • Miroslav Begovic, Assoc. Professor • Power system analysis, protection and emergency control • Distributed energy resources: planning, interaction with distribution and transmission • Sustainable energy systems • Distribution network analysis • Thomas G. Habetler, Professor • Current-based condition monitoring of electric machines • Control of electric machine drives • Power electronics • Design and protection of electric machines • Ronald G. Harley, Duke Power Dist. Professor • Power system stability and control, including Flexible AC Systems (FACTS) devices • Power electronics, motor drives and electric vehicles • Neural networks applied to power electronics and electrical machines • Jerome M. Meisel, Part-time Professor • Future Truck Team Advisor • Electric Vehicles • Power Electronics

3. Faculty • A.P. Sakis Meliopoulos, Professor • Power System Reliability and Risk Assessment • Power Systems Operations Planning • Electromagnetic Influence of Power Systems • Power Quality • Protective Relaying and Disturbance Analysis • Simulation, Animation and Visualization of Power System • Hans B. Puttgen, Georgia Power Dist. Professor • Director of NEETRAC • Director of GT-Lorraine • ECE Associate Director of External Affairs • Power systems analysis and planning • Utility deregulation • Electric transportation vehicles and systems • Ajeet Rohatgi, Georgia Power Dist. Professor • Director, University Center of Excellence for Photovoltaics Research and Education • Modeling and fabrication of low-cost high-efficiency silicon solar cells • Growth and characterization of low-temperature and high-performance dielectrics • Defects and carrier lifetime in semiconductors • Growth and optoelectronic properties of compound semiconductors

4. Affiliated Faculty • Christina B. Honsberg, Associate Professor • Design, development and characterization of novel commercially oriented solar cell structures using the buried contact technology • Identification, modeling and analysis of novel techniques to overcome traditional homojunction or two-stack tandem efficiency limits • Gallium Arsenide Solar Cells • David G. Taylor, Professor • Nonlinear control systems • Electromechanical systems and devices • Modeling, simulation and control of assembly robots • Design and control of linear motion actuators and generators • John F. Dorsey, Professor • Modeling and control of large-scale systems • Real time identification of parameters of power system models • On-line power system security assessment • Elimination of sustained oscillations in power systems • Effect on stability of nonutility generation

5. Areas of Educational and Research Activities in Electric Power • Power system monitoring, analysis, protection, operation and control • Distributed generation • Power system simulation and visualization • High voltage engineering and power system components • Electric machine control, condition monitoring, and protection • Power Electronics

6. Research Centers • $3M ConsortiumUtilitiesManufacturersEnd UsersAcademia • EV Research200 HP Dynamometer125 kW DC Test SystemEV Virtual TestbedEV Charger Power Quality • Materials1,000 sq. ft. Solar Cell Fabrication Facility • Systems340 kW PV Array on GT Olympic Natatorium Roof

7. Future Truck • Student teams from 15 universities are challenged to re-engineer a conventional Ford Explorer into a lower-emissions vehicle • Sponsored by the US DOE and Ford Motor Co.

8. Courses in Power Electronics and Machines ELECTRIC MACHINES • ECE 3070 (3,0,3) – Introduction to Electromechanical Energy Conversion • Tier 2 course offered every semester • Prereq: ECE 2040, ECE 3025 • ECE 4803/6336 (3,0,3) – Electric Machinery Analysis • Taught concurrently as both undergrad and grad course. • Prereq: ECE3070, Offered summer of even years • ECE 3881 (0,3,1) - Energy Conv & Mechatronics Lab • Laboratory portion of ECE3301 • Offered every semester • Coreq: ECE3070 • ECE 6336 (3,0,3) – Dynamics and Control of Electric Machine Drives • Offered every spring • Prereq: ECE3070

9. Courses in Power Electronics and Machines POWER ELECTRONICS • ECE 4330 (2,2,3) – Power Electronics • Senior elective with lecture and lab • Offered every spring • Prereq: ECE 3040, ECE 3042 • ECE 6331 (3,0,3) – Power Electronic Circuits • Offered every fall • Prereq: ECE 4330

10. Research in Electric Machines and Power Electronics • Rotating fault detection in induction machines. • Neural network-based diagnostics using self organizing maps. • Stator insulation fault detection using ANNs. • Rotating fault detection in synchronous and brushless dc machines. • Sensorless vibration detection in induction and synchronous machines. • 25 kV power electronic sag supporter using a PWM-switched autotransformer .

11. Research in Electric Machines and Power Electronics (continued) • Backpropagation neural networks for motor diagnostics (fault identification). • Sensorless speed measurement using slot harmonic detection and spectral estimation. • Rotor temperature estimation based on rotor resistance thermal time constant. • Continuous on-line training of neural networks for motor control and power electronic applications. • FPGA implementation of neural networks on motors. • Turbogenerator identification and control using neural networks.