This course presents analysis and control methods of power electronics circuits converting and controlling of electric power by using semiconductor switching power devices. It deals with switching transitions in MOSFETs and IGBTs, commutation in voltage-source bridge converters, voltage and current feedback control, applications to grid-connected converters, various grid-connection converters and related emerging technologies.
Analysis of power electronics circuit requires consideration of transient response in a very wide range of time scale from a utility grid period of 20 milli seconds to a switching transition of several hundred nano seconds. Although recent computers have a high calculation performance, a lot of computation would be required to analyze the dynamic response in a long duration with a quire small time step. This course introduces some analysis and modeling methods to solve the dynamic response of the power electronics converters effectively. These methods are also valuable for controlling these converters. Student are expected to study these fundamental methods as well as their applications to various other practical problems.
By the end of the course, students will be able to:
1) Understand the basic structure and driving methods for power MOSFETs and insulated gate bipolar transistors (IGBTs).
2) Understand the circuit topology and operating principles in basic power electronics circuits.
3) Analyze the operating characteristics of basic power electronics circuits.
Power electronics, converter topologies, and power semiconductor devices.
✔ Specialist skills | Intercultural skills | Communication skills | Critical thinking skills | ✔ Practical and/or problem-solving skills |
The instructor will first present some circuit topologies, control schemes, and/or analysis methods. Students will have discussions on the assigned topics in the class.
Course schedule | Required learning | |
---|---|---|
Class 1 | Duality in power electronics circuit, canonical cells | Derivation of a dual converter circuit. |
Class 2 | Losses in power devices, commutation in voltage-source converter, gate drive circuit | Performance evaluation of gate drive circuit. |
Class 3 | Snubber and soft switching circuits | Design of a snubber circuit. |
Class 4 | Resonant power conversion and its applications, operating modes, power control | Design of a resonant converter. |
Class 5 | Magnetic components for power conversion: inductors and transformers | Design of a converter transformer. |
Class 6 | Capacitors and filter circuits for power electronics | Design of a filter circuit |
Class 7 | Multilevel converters and direct ac converters | Harmonic analysis |
To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.
Lecture slides will be delivered through OCW/i.
1) John G. Kassakian, Martin F. Schlecht, George C. Verghese, Principles of Power Electronics, Addison-Wesley Series in Electrical Engineering, ISBN-13: 978-0201096897
2) Ned Mohan, Tore M. Undeland and William P. Robbins, Power Electronics: Converters, Applications, and Design, ISBN-13: 978-0471226932
Grading depends on the reports.
This course is based on the knowledge taught by the undergraduate "power electronics" course.
Hideaki Fujita, fujita[at]ee.e.titech.ac.jp
Please make appointment through email.