Spring 2013 textbook list
The Spring 2013 ECE textbook list is available online for students.
Current Prerequisites & Course Offering
For current prerequisites for a particular course, and to view course offerings for a particular semester, see the Virginia Tech Course Timetables.
ECE 5274 Modeling and Control of Three-Phase PWM Converters (3C)
Power conversion principles for three-phase pulse-width modulation techniques, control and converters. Development of averaged models of three-phase rectifiers and inverters in stationary and rotating coordinates. Small-signal models in rotating coordinates and control design. Introduction of switching state vectors and different modulation schemes. Three-phase inverter and rectifier applications. Parallel and multi-level three-phase converters.
What is the reason for this course?
Three-phase converters cover most medium and high power applications in the power electronics area. There has been no such course in this university; the course 5254, Power Converter Modeling and Control, covers only the material related to the dc-dc converters. However, over 30 graduate students are doing research in the area of three-phase power conversion.
Typically offered: Spring. Program Area: Electronics.
Prerequisites: Prerequisites: ECE 4224 or equivalent.
Why are these prerequisites or corequisites required?
This course requires 4224 as a prerequisite. 4224 covers the average and small-signal modeling of generic switching cells, and basic principles of closed-loop control design and PWM techniques for dc-dc converters.
Department Syllabus Information:
Major Measurable Learning Objectives:- Explain operation principles of three-phase PWM converters;
- Use different modulation techniques to generate PWM for three-phase converters;
- Design closed-loop control for three-phase PWM converters, and;
- Select and design converters for medium and high power applications.
| Course Topics | |
|---|---|
| Topic | Percentage |
| Introduction of three-phase variables, I, u, & p | 5% |
| Basic topologies of three-phase converters | 5% |
| Averaged models in stationary coordinates | 10% |
| ABC/DQ0 transformation and averaged models in rotating coordinates | 10% |
| Small-signal modeling and control design | 15% |
| Modulation techniques | 15% |
| Average model of modulators | 10% |
| Reduced-order modeling for three-phase converters | 5% |
| Multi-phase converters | 10% |
| Parallel three-phase converters | 5% |
| Multi-level converters | 10% |