Why take this course?
The growth of humanity, from less than 2 billion in the end of the 19th century to over 7 billion in the beginning of the 21st
century is strongly related to our ability to use energy. The use of
fossile energy cause severe problems with the environment and is truly
challenging the future of man kind. We strongly need I) to reduce our
use of energy and II) to transfer from fossil and probably nuclear to
renewable energy sources.
This is where Power Electronics is important. Independent of primary energy source, a lot of our use of energy involves electric energy technology. Manufacturing, transport, lighting, ventilation, heating, electricity transmission, physics research, ... all involve one or several steps where the energy is converted to electricity before finally consumed. In addition, renewable energy sources like wind, wave and solar are entirely dependent on conversion of the primary energy source to electricty as an intermediate state before finally consumed.
In
most, if not all, of these applications the energy is converted by
means of switching power electronics converters built by power
semiconductors and controlled in real time by very fast control
systems. The development of modern power electronics started half a
century ago and is today developing faster than ever before. As an
engineer with ambitions to work with, or just understand the fundaments
of, electric energy conversion and control, it is important t study
power electronics - it is involved "everywhere" in electric energy flow
control.
This course is given to provide a deep understanding of the technologies involved, the requirements and limitations, the opportunities and to give the understanding and tools to help those who want to contribute to the development.
The
course is built on lectures,labs, exercises. The labs are prepared
within the Matlab/Simulink environment such that you by the computer
get a chanse to understand the dynamic behaviour that you will se on
instruments in the lab.
Teachers
The
course is given by Professor Mats
Alaküla, and Associate Professor Avo Reinap.
The course is assisted by Akanksha Upadhyey, Max Collins and Samuel Estenlund, all PhD students at IEA.
Lectures
Lecture 1 - Intro & Switches
Lecture 2 - Bridges and snubbers
Lecture 3 - DC/DC conv + 1 phase modulation
Lecture 4 - H-bridge + 2 phase modulation
Lecture 5 - Speed Control
Lecture 6 - DC Current Control
Lecture 7 - Torque Generation
Lecture 8 - DC Machine
Lecture 9 - 3 Phase Modulation
Lecture 10 - 3 Phase Current Control
Lecture 11 - Static VAr Compensation
Lecture 12 - Active Filters
Lecture 13 - Passive components
Lecture 14 - PMSMmodelling 1, PMSMmodelling2, PMSMexercise, PMSMexercise_example
Lecture 15 - PMSMcontrol, PMSMcontrol1, PMSMcontrol2, PMSMexercise_example
Lecture 16 - Lab PMSM preparation
Lecture 17 - Semconductor I
Lecture 18 - Semiconductor II
Lecture 19 - Thermal modelling (losses)
Lecture 20 - Thermal modelling (cooling), Lecture video 1, Lecture video 2
Lecture 21 - IM modelling & control pdf, Lecture video 1, Lecture video 2
Lecture 22 - Resonant & multilevel converters pdf, Lecture video
Lecture 23 - Electrmagnetic Compatibility
Lecture 24 - Guest Lecture
Lecture 25&26 - Summary pdf, Lecture video 1, Lecture video 2, Lecture video 3, Lecture video 4
Study guide
Suitable book chapters and exercises matched with lecturesExercises
Exercises with solutions 2020 Update!Laborations
Lab 1 - The flyback converter
Installation of LTspice IV or XVII Software
Simulation exercise (Deadline 28/1: akanksha.upadhyay(at)iea.lth.se)
Lab manual (Derive expressions for 3, 4, 5 before your lab session)
Lab 2 - The H-bridge converter
Simulation exercise (Deadline 5/2: akanksha.upadhyay(at)iea.lth.se) H-bridge dc/dc converter.
Design of an Analog Modulator for an H-Bridge dc-dc converter
Assignment 2 - half bridge circuit
Lab manual (Do exercises 1, 3, 4 and 5 before your lab session)
Lab 3 - The DC machine
Lab manual
Home assignment instructions
Simulation files
Introduction videos
Comments videos
Doodle link for lab signup - expired
Supervisor: Samuel Estenlund in Room 2469A M-building 2nd floor (above formula student)
or email samuel.estenlund(at)iea.lth.se
Lab 4 - The active filter
Lab manual
Home assignment instructions
Simulation files
Doodle link for lab signup
Supervisor: Max Collins in Room 2478 M-building 2nd floor (above formula student)
or email max.collins(at)iea.lth.se
Lab 5 - The PMSM
Ordinary lab manual
Home assignment instructions - Deadline May 1st
Simulation files
Introduction videos
Comments videos
Doodle link for lab signups - NOT to come
Home lab manual - Deadline May 8th
Introduction: March 26, 13-17
Supervisor: Samuel Estenlund in Room 2469A M-building 2nd floor (above formula student)
or email samuel.estenlund(at)iea.lth.se
Lab 6 - The induction machine
Home lab manual - Deadline May 22nd (To come)
Home lab video
Home assignment instructions - Deadline May 15th
Simulation files
Introduction videos
Comments videos
Introduction: May 5, 15-17
Supervisor: Samuel Estenlund in Room 2469A M-building 2nd floor (above formula student)
or email samuel.estenlund(at)iea.lth.se
Previous Exams
Course Material
Course PlanCourse compendium This book is subject to being upgraded during the course. Please check in here for pdated versions.
2/6-20:
1/6-20:
Guest Lecture on Tuesday 19/5:
Dr
Gabriel Dominguez, who is a specialist in power electronic drive trains
at Borg Warner (one of the largest players in the world of
Automotive drive trains), will share his view on electric drive train
technology and trendsCorona - News - Updated 25/3 2020!
In
the wake of the Corona - virus we all have to contribute to slowing
down the spread of infections. This will affect the remaining teaching
in this course as well. From now on, no teaching activities will happen at Campus. This means :- The lectures will be given over Zoom. The relevant links are listed by the lectures on the left side of this page. The slides in pdf-format and a pre recorded version of the lecture will also be available there after the lectures.
- The
labs will NOT be run as planned. Instead you will be given an extended
home assignment, containing also additional questions to answer that
requires you to look at some filmed sequences from the laboratory. The Active Filter lab instructions and home assignment will be distributed on March 29. The deadline for reporting the Active Filter Lab will be April 12. That gives you 2 weeks to prepare the lab report! The corresponding dates for the subsequent labs will be announced later.
Contact
The Student adminstration office is open weekdays 11:00-12:30 on the second floow in the M-building. Other times by agreement.
The teachers (except Mats) are all located in the south east corridor of the M-building, one floor above ground.
Phone: 046-229290
Mail:
Secretary: studexp(at)iea.lth.se
Akanksha: akanksha.upadhyay(at)iea.lth.se
Max: max.collins(at)iea.lth.se
Samuel: samuel.estenlund(at)iea.lth.se
Mats: mats.alakula(at)iea.lth.se
Avo: avo.reinap(at)iea.lth.se