2025 (Current Year) Faculty Courses School of Engineering Undergraduate major in Electrical and Electronic Engineering
Power Electronics
- Academic unit or major
- Undergraduate major in Electrical and Electronic Engineering
- Instructor(s)
- Hideaki Fujita / Kenichiro Sano
- Class Format
- Lecture (Face-to-face)
- Media-enhanced courses
- -
- Day of week/Period
(Classrooms) - 5-6 Tue / 5-6 Fri
- Class
- -
- Course Code
- EEE.P311
- Number of credits
- 200
- Course offered
- 2025
- Offered quarter
- 1Q
- Syllabus updated
- Mar 19, 2025
- Language
- Japanese
Syllabus
Course overview and goals
Power Electronics is the enabling technology for achieving various power conversion by using semiconductor devices as a "power switch." This course describes fundamentals, operating principles, and applications of each power converter topology comprehensively, in which the particular attention is paid to the following items: 1) fundamentals of power electronics, 2) operation principles of power converters as a voltage source or current source, 3) roles of passive components (i.e., transformers, capacitors, and inductors), 4) the characteristics of power semiconductor devices, 5) dc choppers (i.e., buck choppers, boost choppers, and buck-boost choppers), 6) isolated dc-dc converters, 7) diode rectifiers with a pure resistive load, 8) diode rectifiers with a dc inductor, 9) diode rectifiers with a dc capacitor, 10) the fundamentals and operating principles of inverters, 11) single-phase inverters, 12) three-phase inverters, 13) current-source inverters, 14) NPC (Neutral-Point-Clamped) inverters, 15) the applications of power electronics.
The importance of power electronics increases year by year because it is an enabling technology for solving environmental problems such as global warming as well as achieving energy saving. In addition, it is possible to understand other important courses such as electric machinery, linear circuit theory, and control engineering for electrical and electronic engineers more deeply because power electronics is based on these courses. We hope that each of the students attends this course actively for understanding the importance of power electronics more.
Course description and aims
By the end of this course, students will be able to:
1) Explain the functions and characteristics of powerelectronics circuit based on the understanding of principle of switching operation, .
2) Select applicable components used for powerelectronics circuit based on the understanding of their roles and functions.
3) Select a suitable circuit topology and design its circuit parameters to the required specifications.
4) Calculate dc voltage of various diode rectifiers by understanding the roles of diodes and passive components.
5) Compare advantages and disadvantages of modulation methods and harmonic spectra by understanding the operating principles of various inverter topologies.
Keywords
Power electronics, power semiconductor devices, dc converters, dc-to-dc converters, rectifiers, inverters.
Competencies
- Specialist skills
- Intercultural skills
- Communication skills
- Critical thinking skills
- Practical and/or problem-solving skills
- ・Applied specialist skills on EEE
Class flow
Each lecture will be given primarily by using MS PowerPoint slides, the contents of which are based on the designated textbook. All slides will be uploaded to Science Tokyo LMS before or after the lecture. All the classes are carried out face-to-face.
Course schedule/Objectives
| Course schedule | Objectives | |
|---|---|---|
| Class 1 | Fundamentals of power electronics Functions, topologies, and applications | Understand the fundamentals of power converters and the relationship between supply and load and operation of voltage and current sources by reading power point slides and pages 1–14 of textbook carefully. |
| Class 2 | Circuit components used for power electronics circuits - Switching devices, inductors, capacitors and so on | Understand the fundamental characteristics of switching devices, inductors, and capacitors by reading power point slides carefully. |
| Class 3 | DC power conversion 1 (Buck converters) | Understand the operating principles of buck converters by reading power point slides and pages 66–69 of textbook carefully. |
| Class 4 | DC power conversion 2 (Boost converters and buck-boost converters) | Understand the operating principles of boost converter and buck-boost converter by reading power point slides and pages 69-72 of textbook carefully. |
| Class 5 | Isolated DC-DC converter 1 (Flyback converters) | Understand the operating principles of flyback converters by reading power point slides and pages 66–70 of textbook carefully. |
| Class 6 | Isolated DC-DC converter 1 (Full-bridge converters and others) | Understand the operating principles of full-bridge converters by reading power point slides and pages 107-110 of textbook carefully. |
| Class 7 | Power semiconductor devices | Understand the fundamental characteristics of power semiconductor devices by reading power point slides and pages 16-54 of textbook carefully. |
| Class 8 | Test level of understanding with exercise problems and summary of the first part of the course - Solve exercise problems covering the contents of classes 1–7. | Test level of understanding and self-evaluate achievement for classes 1–7. |
| Class 9 | Rectifier 1 - Outline of ac-dc conversion, rectifiers with pure resistive load, dc magnetic flux deviation. | Understand the operating principles of rectifiers with pure resistive load and the role of inductor by reading power point slides and pages 177–184 of textbook carefully. |
| Class 10 | Rectifier 2 - Choke input rectifier, capacitor input rectifier, overlapping of currents, and 12-pulse rectifier. | Understand the role of free-wheeling diodes in rectifiers and the overlapping of currents by reading power point slides and pages 185–192 of textbook carefully. |
| Class 11 | Rectifier 3 - Thyristor rectifiers, PWM rectifiers, and PFC rectifiers. | Understand the operating principles of various rectifiers by reading power point slides and pages 192–218 of textbook carefully. |
| Class 12 | Inverter 1 - Outline of inverters, classification of inverters, full-bridge inverter. | Understand the operating principles of inverters by reading power point slides and pages 115–122 of textbook carefully. |
| Class 13 | Inverter 2 - Pulse-Width-Modulation (PWM), single-phase PWM inverter, three-phase PWM inverter. | Understand the operating principles of PWM by reading power point slides and pages 165–168 of textbook carefully. |
| Class 14 | Inverter 3 - Current control of three-phase PWM converter, high-voltage high-power power electronics, NPC (Neutral-Point-Clamped) inverter, modular multilevel converters. | Understand the operating principles of a three-phase PWM converter and state-of-the-art high-voltage high-power power electronics. |
Study advice (preparation and review)
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.
Textbook(s)
Kin, Tokai. Power Switching Technology: IEEJ; ISBN 978-4-88686-296-9 C3054. (Japanese)
Reference books, course materials, etc.
None requires.
Evaluation methods and criteria
Students' knowledge of fundamentals of power electronics, power semiconductor devices, dc-dc converters, rectifiers, inverters, and their ability to apply them to problems will be assessed by assignment (30%), midterm exercise problems (35%), final examination (35%).
Related courses
- EEE.C201 ： Electric Circuits I
- EEE.C202 ： Electric Circuits II
- EEE.P301 ： Electric Machinery
- EEE.C261 ： Control Engineering
Prerequisites
Electric Circuit Theory I and II, Electric Machinery, Control Engineering for Electrical and Electronic Engineers.
Other
Quiz, simple exams, home work, questionnaire will be provided through the Science Tokyo LMS. Please bring internet connection devices.