TSTE25 Power electronics, 6hp

Examiner, Course Responsible, and Lecturer: Lars Eriksson, (lars.eriksson@liu.se)
Lecturer: Tomas Jonsson (tomas.u.jonsson@liu.se)
Teaching Assistant: Arvind Balachandran (arvind.balachadran@liu.se)

Please contact us for further information.

Power Electronics

Power electronics is a field of electrical engineering that deals with the conversion and control of electrical power. It involves the study and application of electronic devices and systems to efficiently control and manage the flow of electrical energy between various sources and loads. The driving force behind the existence of power electronics lies in the compelling need for high energy efficiency in diverse applications such as voltage regulation, renewable energy integration, automotive advancements, HVDC transmission, medical equipment, and even the gadgets that power our daily lives. Below is an illustration showcasing the span of power electronic applications across various decades of power.

This course delves into the design of power electronic converters, such as diode rectifiers, thyristor rectifiers, and switch mode converters (DC-DC, AC-DC, and DC-AC) for applications such as switch-mode power supply, variable speed drive, and converters for high voltage applications (HVDC, SVC). The course also introduces power semiconductors, power semiconductor rating and thermal effects, converter control, and protection.

Intended learning outcomes

The course aims to give the student knowledge of principles for power electronics such as voltage conversion and power control. After passing the course, a student should be able to:

• Explain and analyze the function of DC-DC, AC-DC, and DC-AC converters.
• Calculate the waveforms in DC-DC, AC-DC, and DC-AC converters.
• Describe the function of common semiconductors used in power control.
• Describe and model thermal effects.
• Describe various pulse width modulation principles.
• Describe the control of DC-DC, AC-DC, and DC-AC converters.
• Know about drive and protection circuits for power control.
• Define the base requirements for the selection of components in the converter design.

Course Organization

The course is organized into lectures, exercises, hand-in assignments, and a final written examination. The hand-ins are covered across 3 laboratory sessions and the work will involve computer simulations, characterization of MOSFET transient behaviors, and measurements on a converter. Below is an illustration of the course plan.

Table of contents

1. Schedule
2. Deadlines
3. Lectures
4. Lesson
5. Laboratories
6. Exams
7. Literature

Course Schedule

The schedule for the lectures, lessons, and labs is on LiUs timeedit. Due to the limit on the number of computers and hardware in the laboratory sessions, the students must be signed up for the laboratory sessions via Lisam.

Deadlines

The table below shows the deadlines for the submissions and the lab compendium gives a more detailed description of what to submit at the different times. Submission of assignments is done via Lisam, submissions close at 23:59 on the indicated dates.

Lectures

Below are the slides that are planned to be shown during the lectures. The lecture slides are being modified during the preparations for each lecture and will be uploaded before the lecture starts.

Lesson

The table below shows the lesson plan with recommended tasks and homework assignments in the lesson compendium. Note that the lesson compendium is constantly updated throughout the course.

Laboratory Sessions

The course contains three laboratory sessions and covers four hand-in assignments given in the laboratory compendium. The table below shows the distribution of the hand-ins across the three laboratory sessions with the appropriate files required to complete the hand-in. Note that the lesson compendium is constantly updated throughout the course.

The datasheets and additional documents for the laboratory sessions are available here.

Hand-in 2

The handin2 directory contains the following files

Hand-in 3 and 4

The handin3 directory contains the following files

Example Examination

The example examination is available here.
The solutions to the example examination is available here.

Course Literature

• N. Mohan, T M Undeland, W P Robbins, (2003) Power Electronics, Converters, Applications, and Design Wiley.
  
• Hart, D.W. and Hart, D.W., 2011. Power electronics (Vol. 166). New York: McGraw-Hill.